QUECTEL HC08U Low Energy Bluetooth Module User Guide
- June 13, 2024
- QUECTEL
Table of Contents
- QUECTEL HC08U Low Energy Bluetooth Module
- Product Information
- Product Usage Instructions
- Safety Information
- About the Document
- Introduction
- Module Specifications
- Electronic Characteristic
- BLE RF Characteristics
- Mechanical Dimensions
- Storage, Manufacturing & Packaging
- Appendix Reference
- FCC
- CONTACT
- Use and Disclosure Restrictions
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
QUECTEL HC08U Low Energy Bluetooth Module
Product Information
- Product Name: HC08U Hardware Design Bluetooth Module Series
- Version: 1.0.3
- Date: 2022-11-18
- Status: Preliminary
- Manufacturer: Quectel Wireless Solutions Co., Ltd.
Contact Information:
- Headquarters: Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai 200233, China
- Tel: +86 21 5108 6236
- Email: info@quectel.com.
Support:
-
For more information, visit http://www.quectel.com/support/sales.htm.
-
For technical support or reporting documentation errors, visit
http://www.quectel.com/support/technical.htm -
Email support: support@quectel.com.
Product Usage Instructions
Use and Disclosure Restrictions: The documents and information provided should be kept confidential and not accessed or used for any purpose except as expressly provided.
Copyright and Trademarks: Unless specific permission is granted, the use of trademarks, trade names, or counterfeit products owned by Quectel or any third party in advertising, publicity, or other aspects is prohibited.
Third-Party Rights: Third-party materials referenced in the document are subject to their respective restrictions and obligations.
Privacy Policy: Device data may be uploaded to Quectel’s or third-party servers for module functionality. Data will be retained, used, disclosed, or processed in accordance with applicable laws. Users should review the privacy and data security policies of third parties before data interaction.
Disclaimer:
- We assume no liability for any injury or damage arising from reliance on the information.
- We are not responsible for inaccuracies, omissions, or the use of the information contained herein.
- Functions and features under development are subject to change.
Safety Information:
During all phases of operation, such as usage, service, or repair, the following safety precautions must be observed:
- Full attention must be paid to driving at all times to reduce the risk of accidents. Using a mobile device while driving, even with a handsfree kit, can cause distraction and accidents. Please comply with laws and regulations restricting the use of wireless devices while driving.
Safety Information
The following safety precautions must be observed during all phases of operation, such as usage, service or repair of any cellular terminal or mobile incorporating the module. Manufacturers of the cellular terminal should notify users and operating personnel of the following safety information by incorporating these guidelines into all manuals of the product. Otherwise, Quectel assumes no liability for customers’ failure tocomply with these precautions.
- Full attention must be paid to driving at all times in order to reduce the risk of an accident. Using a mobile while driving (even with a handsfree kit) causes distraction and can lead to an accident. Please comply with laws and regulations restricting the use of wireless devices while driving.
- Switch off the cellular terminal or mobile before boarding an aircraft. The operation of wireless appliances in an aircraft is forbidden to prevent interference with communication systems. If there is an Airplane Mode, it should be enabled prior to boarding an aircraft. Please consult the airline staff for more restrictions on the use of wireless devices on an aircraft.
- Wireless devices may cause interference on sensitive medical equipment, so please be aware of the restrictions on the use of wireless devices when in hospitals, clinics or other healthcare facilities.
- Cellular terminals or mobiles operating over radio signal and cellular network cannot be guaranteed to connect in certain conditions, such as when the mobile bill is unpaid or the (U)SIM card is invalid. When emergency help is needed in such conditions, use emergency call if the device supports it. In order to make or receive a call, the cellular terminal or mobile must be switched on in a service area with adequate cellular signal strength. In an emergency, the device with emergency call function cannot be used as the only contact method considering network connection cannot be guaranteed under all circumstances.
- The cellular terminal or mobile contains a transceiver. When it is ON, it receives and transmits radio frequency signals. RF interference can occur if it is used close to TV sets, radios, computers or other electric equipment.
- In locations with explosive or potentially explosive atmospheres, obey all posted signs and turn off wireless devices such as mobile phone or other cellular terminals. Areas with explosive or potentially explosive atmospheres include fuelling areas, below decks on boats, fuel or chemical transfer or storage facilities, and areas where the air contains chemicals or particles such as grain, dust or metal powders.
About the Document
Revision History
Introduction
Description
HC08U is a power-optimized true system-on-chip (SoC) solution for both
Bluetooth low energy and proprietary 2.4 GHz applications. It integrates a
high performance and low power RF transceiver with Bluetooth baseband and rich
peripheral I/O extension. HC08U also integrates a power management to provide
high-efficient power management. It targets2.4 GHz Bluetooth low energy
systems, proprietary 2.4 GHz systems, Human-Interface Devices (keyboard,
mouse, and remote control), sports and leisure equipment, mobile phone
accessories and consumer electronics.
Special Mark
Table 1: Special Mark
Module Specifications
Processor
- 32-bit RISC MCU, max. 64 MHz
- Dedicated Link Layer Processor
- Supports Over-The-Air Upgrade (OTA)
- Support debug mode
Power management
- Supply voltage range 1.8 V–3.6 V
- 5.906 mA peak current in Rx
- 3.2 mA peak current in Tx
- 17.842 μA in sleep mode
- 3.067 μA in deep sleep mode
- Integrated DC-DC buck converter
Software
- Full compliant with BLE 5.1, complete power-optimized stack, including controller and host
- Support BLE sample applications and profiles
Memory
- 64 KB SRAM
- 48 KB ROM
- 4 Mb sflash
Clocks
- 32.768 kHz crystal oscillator clock, 32.768 kHz RC clock
- 32 MHz crystal oscillator clock, 32 MHz RC clock
RF transceiver
- -92 dBm Rx sensitivity @ 1 Mbps
- -87 dBm Rx sensitivity @ 2 Mbps
- Tx power 5±2 dBm
Development Board
To help customers develop applications with HC08U conveniently, Quectel
supplies the corresponding development board. The development board tool
includes an EVB, a USB 2.0 data cable, an antenna and other external equipment
used for control and test modules.
Interfaces Description
Power: Standard 1.8 V to 3.6 V power supply power ripple ≤ 50 mV, 3.3 V
recommended.
Reset
Support hardware reset, Low effective Reset time ≥ 50 ms
GPIOs
HC08U has up to 17 software-configurable I/O pins.
- Fully programmable pin assignment;
- Selectable pull-up, pull-down resistors per pin;
- GPIO (2, 3, 7, 8, 9, 10) ability to be configured as GP-ADC input;
- Pins retain their last state when system enters the sleep mode;
- Ability to wakeup chip by any GPIOs in sleep mode.
UART
- The UART is modeled after the industry-standard 16550. However, the register address space has been relocated to 32-bit data boundaries for APB bus implementation.
- The UART is used for serial communication with a peripheral, modem (data carrier equipment, DCE) or data set. Data is written from a master (CPU) over the APB bus to the UART and it is converted to serial form and transmitted to the destination device.
- Serial data is also received by the UART and stored for the master (CPU) to read back.
- The UART contains registers to control the character length, baud rate, parity generation/checking, and interrupt generation. Although there is only one interrupt output signal from the UART, there are several prioritized interrupt types that can be responsible for its assertion. Each of the interrupt types can be separately enabled or disabled by the control registers.
- HC08U has 2 UART; the UART0 is a common 2 wire (transmitter and receiver) controller, and the UART1 support stream control (CTS/RTS).
I2C
The I2C is a master or slave interface. It supports 100 kHz, 400 kHz and 800
kHz clock rates for controlling EEPROM and etc. The interface provides several
data formats and can fit various I2C peripherals. Sequential read and write
are supported to improve throughputs. It also supports DMA operation for extra
MCU free data transfer. The I2C work as either master or slave, but cannot
change the working mode after configuration.
SPI
The Serial Peripheral Interface (SPI) bus is a synchronous serial
communication interface specification used for short distance communication,
primarily in embedded systems. The module integrates 2 SPI, and they can work
in either master or slave mode and also support DMA or software mode to
transfer data. The master or slave controller only supports point to point
connection by hardware, that is, both SPI has only one CS pin. The connection
is shown below the figure:
The flexibility of SPI makes it suitable for most SPI slave devices. SPI offers four modes due to the programmable ability of SCLK’s polarity and phase. The delay from CS to SCLK, the delay from SCLK to CS and SCLK period are also programmable. SPI timing diagram is shown in figure below.
ADC
The module is equipped with a high-speed low power 12-bit general purpose
Analog-to-Digital Converter (GP-ADC). It can operate in unipolar (single
ended) mode as well as in bipolar (differential) mode. The ADC has its own
voltage regulator (LDO) of 1.0 V, which represents the full-scale reference
voltage.
- 12-bit dynamic ADC with 1 μs conversion time
- Maximum sampling rate 1M sample/s
- Single-ended as well as differential input with two input scales
- Single-ended or differential external input channels
- 4 single-ended external input channels
- Battery monitoring function
- Chopper function
- Offset and zero scale adjust
- Common-mode input level adjust
BOOT
Pull down when firmware upgrade. Pull up or NC when normal working.
Module Performance
Table 2: Specification
Pin Description
Table 3: Pin Description
NOTE: All digital I/O ports can be configured as any function of GPIO.
Electronic Characteristic
Recommended Operating Conditions
Table 4: Recommended Operating Conditions
Operating mode | Min. | Typ. | Max. | Unit |
---|---|---|---|---|
Storage temperature | -40 | – | 125 | °C |
Operating Temperature | -40 | – | 85 | °C |
VDD power supply | 1.8 | 3.3 | 3.6 | V |
BLE RF Characteristics
BLE Transmitter
Table 5: RF Characteristics (Supply Voltage = 3.3 V @ 25 °C)
Parameter | Conditions | Min. | Typ. | Max. | Unit |
---|---|---|---|---|---|
Frequency range | – | 2402 | – | 2480 | MHz |
Max RF transmit power | – | 4.57 | 5.03 | 5.97 | dBm |
∆f 2avg /∆f 1avg | Uncoded data at 1 Ms/s | 0.88 | – | – | |
∆f 2avg /∆f 1avg | Uncoded data at 2 Ms/s | 0.90 | – | – | |
Frequency offset | Uncoded data at 1 Ms/s | – | 15.1 | – | kHz |
Frequency offset | Uncoded data at 2 Ms/s | – | 17.7 | – | kHz |
BLE Receiver
Table 6: RF Characteristics (Supply Voltage = 3.3 V @ 25 °C)
Parameter | Conditions | Min. | Typ. | Max. | Unit |
---|---|---|---|---|---|
Frequency range | – | 2402 | – | 2480 | MHz |
Rx Sensitivity @ 1 Mbps | PER = 30.8 % | – | -92 | – | dBm |
Rx Sensitivity @ 2 Mbps | PER = 30.8 % | – | -87 | – | dBm |
Power Consumption
Table 7: Power Consumption (3.3 V, 25 °C, 5±2 dBm Tx)
Operating Modes | LDO Typical | Unit |
---|---|---|
Deep sleep | 3.067 | μA |
Sleep | 17.842 | uA |
Tx | 3.2 | mA |
Rx | 5.906 | mA |
ESD
Static electricity occurs naturally and it may damage the module. Therefore,
applying proper ESD countermeasures and handling methods is imperative. For
example, wear anti-static gloves during the development, production, assembly
and testing of the module; add ESD protection components to the ESD sensitive
interfaces and points in the product design.
Table 8: ESD Characteristics (Temperature: 25 ºC, Humidity: 45 %)
Tested Interfaces | Contact Discharge | Air Discharge | Unit |
---|---|---|---|
VDD | ±8 | ±12 | kV |
GND | ±8 | ±12 | kV |
--- | --- | --- | --- |
ANT | ±5 | ±10 | kV |
Thermal Consideration
The module offers the best performance when all internal IC chips are working
within their operating temperatures. When the IC chip reaches or exceeds the
maximum junction temperature, the module may still work but the performance
and function (such as RF output power, data rate, etc.) will be affected to a
certain extent. Therefore, the thermal design should be maximally optimized to
ensure all internal IC chips always work within the recommended operating
temperature range.
The following principles for thermal consideration are provided for reference:
- Keep the module away from heat sources on your PCB, especially high-power components such as processor, power amplifier, and power supply.
- Maintain the integrity of the PCB copper layer and drill as many thermal vias as possible.
- Follow the principles below when the heatsink is necessary:
- Do not place large size components in the area where the module is mounted on your PCB to reserve enough place for heatsink installation.
- Attach the heatsink to the shielding cover of the module; In general, the base plate area of the heatsink should be larger than the module area to cover the module completely;
- Choose the heatsink with adequate fins to dissipate heat;
- Choose a TIM (Thermal Interface Material) with high thermal conductivity, good softness and good wettability and place it between the heatsink and the module;
- Fasten the heatsink with four screws to ensure that it is in close contact with the module to prevent the heatsink from falling off during the drop, vibration test, or transportation.
Mechanical Dimensions
Mechanical Dimensions
Table 9: Mechanical Dimensions (Top View)
The detailed size information of HC08U is as follows:
NOTE: The package warpage level of the module conforms to the JEITA ED-7306 standard.
Top and Bottom Views
Storage, Manufacturing & Packaging
Storage Conditions
The module is provided with vacuum-sealed packaging. MSL of the module is
rated as 3. The storage requirements are shown below.
- Recommended Storage Condition: the temperature should be 23 ±5 °C and the relative humidity should be 35–60 %.
- Shelf life (in a vacuum-sealed packaging): 12 months in Recommended Storage Condition.
- Floor life: 168 hours 1 in a factory where the temperature is 23 ±5 °C and relative humidity is below 60 %. After the vacuum-sealed packaging is removed, the module must be processed in reflow soldering or other high-temperature operations within 168 hours. Otherwise, the module should be stored in an environment where the relative humidity is less than 10 % (e.g., a dry cabinet).
- The module should be pre-baked to avoid blistering, cracks and inner-layer separation in PCB under the following circumstances:
- The module is not stored in Recommended Storage Condition;
- Violation of the third requirement mentioned above;
- Vacuum-sealed packaging is broken, or the packaging has been removed for over 24 hours;
- Before module repairing.
- If needed, the pre-baking should follow the requirements below:
- The module should be baked for 8 hours at 120 ±5 °C;
- The module must be soldered to PCB within 24 hours after the baking, otherwise it should be put in a dry environment such as in a dry cabinet.
NOTE: This floor life is only applicable when the environment conforms to IPC/JEDEC J-STD-033. It is recommended to start the solder reflow process within 24 hours after the package is removed if the temperature and moisture do not conform to, or are not sure to conform to IPC/JEDEC J-STD-033. And do not remove the packages of tremendous modules if they are not ready for soldering.
- To avoid blistering, layer separation and other soldering issues, extended exposure of the module to the air is forbidden.
- Take out the module from the package and put it on high-temperature-resistant fixtures before baking. If shorter baking time is desired, see IPC/JEDEC J-STD-033 for the baking procedure.
- Pay attention to ESD protection, such as wearing anti-static gloves, when touching the modules.
Manufacturing and Soldering
Push the squeegee to apply the solder paste on the surface of stencil, thus
making the paste fill the stencil openings and then penetrate to the PCB.
Apply proper force on the squeegee to produce a clean stencil surface on a
single pass. To guarantee module soldering quality, the thickness of stencil
for the module is recommended to be 0.13–0.15 mm. The recommended reflow
temperature should be 235–246 ºC, with 246 ºC as the absolute maximum reflow
temperature. To avoid damage to the module caused by repeated heating, it is
suggested that the module should be mounted only after reflow soldering for
the other side of PCB has been completed. The recommended reflow soldering
thermal profile (lead-free reflow soldering) and related parameters areshown
below:
Table 10: Recommended Thermal Profile Parameters
Factor | Recommended Value |
---|---|
Soak Zone | |
Ramp-to-soak slope | 0–3 °C/s |
Soak time (between A and B: 150 °C and 200 °C) | 70–120 s |
Reflow Zone | |
Ramp-up slope | 0–3 °C/s |
Reflow time (D: over 217°C) | 40–70 s |
Max temperature | 235–246 °C |
Cool-down slope | -3–0 °C/s |
Reflow Cycle | |
Max reflow cycle | 1 |
Packaging
Appendix Reference
Table 11: Terms and Abbreviations
Abbreviation | Description |
---|---|
AP | Access Point |
APS | Advanced Peripheral Bus |
BLE | Bluetooth Low Energy |
BPSK | Binary Phase Shift Keying |
BT | Bluetooth |
CCK | Complementary Code Keying |
CTS | Clear To Send |
DQPSK | Differential Quadrature Reference Phase Shift Keying |
GATT | Generic Attribute Profile |
GND | Ground |
HT | High Throughput |
IEEE | Institute of Electrical and Electronics Engineers |
I/O | Input/Output |
Mbps | Million Bits Per Second |
QAM | Quadrature Amplitude Modulation |
QPSK | Quadrature Phase Shift Keying |
RF | Radio Frequency |
RoHS | Restriction of Hazardous Substances |
STA | Spike-triggered average |
RTS | Request to Send |
--- | --- |
RXD | Receive Data |
TBD | To Be Determined |
TXD | Transmit Data |
UART | Universal Asynchronous Receiver/Transmitter |
USB | Universal Serial Bus |
VIHmax | Maximum High-level Input Voltage |
VIHmin | Minimum High-level Input Voltage |
VILmax | Maximum Low-level Input Voltage |
VILmin | Minimum Low-level Input Voltage |
VOLmax | Maximum Low-level Output Voltage |
VOHmin | Minimum High-level Output Voltage |
Vnom | Normal Voltage |
VSWR | Voltage Standing Wave Ratio |
CE Statement
- The minimum distance between the user and/or any bystander and the radiating structure of the transmitter is 20cm.
- Hereby, We, Quectel Wireless Solutions Co., Ltd. declares that the radio equipment type
- HC08U is in compliance with the Directive 2014/53/EU.
- The full text of the EU declaration of conformity is available at the following internet address:
- Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District,
- Shanghai 200233, China
- https://www.quectel.com.
- The device operates with the following frequency bands and transmitting power:
Band| Tx (MHz)| Rx (MHz)| The Maximum (EIRP)
Transmitted Power (dBm)
---|---|---|---
Bluetooth LE| 2402 ~ 2480| 2402 ~ 2480| 5.0 dBm
| | |
FCC
FCC Certification Requirements.
According to the definition of mobile and fixed device is described in Part
2.1091(b), this device is a mobile device.
And the following conditions must be met:
- This Modular Approval is limited to OEM installation for mobile and fixed applications only. The antenna installation and operating configurations of this transmitter, including any applicable source-based timeaveraging duty factor, antenna gain and cable loss must satisfy MPE categorical Exclusion Requirements of 2.1091.
- The EUT is a mobile device; maintain at least a 20 cm separation between the EUT and the user’s body and must not transmit simultaneously with any other antenna or transmitter.
- A label with the following statements must be attached to the host end product: This device contains FCC ID: XMR2022HC08U.
- To comply with FCC regulations limiting both maximum RF output power and human exposure to RF radiation, maximum antenna gain (including cable loss) must not exceed:
- Bluetooth LE: ≤ 0 dBi
- This module must not transmit simultaneously with any other antenna or transmitter
- The host end product must include a user manual that clearly defines operating requirements and conditions that must be observed to ensure compliance with current FCC RF exposure guidelines.
For portable devices, in addition to the conditions 3 through 6 described
above, a separate approval is required to satisfy the SAR requirements of FCC
Part 2.1093 If the device is used for other equipment that separate approval
is required for all other operating configurations, including portable
configurations with respect to 2.1093 and different antenna configurations.
For this device, OEM integrators must be provided with labeling instructions
of finished products. Please refer to KDB784748 D01 v07, section 8. Page 6/7
last two paragraphs: A certified modular has the option to use a permanently
affixed label, or an electronic label. For a permanently affixed label, the
module must be labeled with an FCC ID – Section 2.926 (see 2.2 Certification
(labeling requirements) above). The OEM manual must provide clear instructions
explaining to the OEM the labeling requirements, options and OEM user manual
instructions that are required (see next paragraph). For a host using a
certified modular with a standard fixed label, if (1) the module’s FCC ID is
not visible when installed in the host, or (2) if the host is marketed so that
end users do not have straightforward commonly used methods for access to
remove the module so that the FCC ID of the module is visible; then an
additional permanent label referring to the enclosed module:“Contains
Transmitter Module
FCC ID: XMR2022HC08U” or “Contains
FCC ID: XMR2022HC08U” must be used. The host OEM user manual must also
contain clear instructions on how end users can find and/or access the module
and the FCC ID. The final host / module combination may also need to be
evaluated against the FCC Part 15B criteria for unintentional radiators in
order to be properly authorized for operation as a Part 15 digital device. The
user’s manual or instruction manual for an intentional or unintentional
radiator shall caution the user that changes or modifications not expressly
approved by the party responsible for compliance could void the user’s
authority to operate the equipment. In cases where the manual is provided only
in a form other than paper, such as on a computer disk or over the Internet,
the information required by this section may be included in the manual in that
alternative form, provided the user can reasonably be expected to have the
capability to access information in that form.
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions:
- This device may not cause harmful interference, and
- this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
IC Statement IRSS-GEN
“This device complies with Industry Canada’s licence-exempt RSSs. Operation is
subject to the following two conditions:
- This device may not cause interference; and
- This device must accept any interference, including interference that may cause undesired operation of the device.
The EUT is a mobile device; maintain at least a 20 cm separation between the
EUT and the user’s body and must not transmit simultaneously with any other
antenna or transmitter. To comply with IC regulations limiting both maximum RF
output power and human exposure to RF radiation, maximum antenna gain
(including cable loss) must not exceed:
Bluetooth LE: ≤ 0 dBi
The host product shall be properly labelled to identify the modules within the
host product. The Innovation, Science and Economic Development Canada
certification label of a module shall be clearly visible at all times when
installed in the host product; otherwise, the host product must be labeled to
display the Innovation, Science and Economic Development Canada certification
number for the module, preceded by the word “Contains” or similar wording
expressing the same meaning, as follows:
“Contains IC: 10224A-2022HC08U” or “where: 10224A-2022HC08U is the
module’s certification number”.
CONTACT
- At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our headquarters:
- Quectel Wireless Solutions Co., Ltd.
- Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai
- 200233, China
- Tel: +86 21 5108 6236
- Email: info@quectel.com.
- Or our local offices. For more information, please visit:http://www.quectel.com/support/sales.htm.
- For technical support, or to report documentation errors, please visit:http://www.quectel.com/support/technical.htm.
- Or email us at: support@quectel.com.
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Privacy Policy
To implement module functionality, certain device data are uploaded to
Quectel’s or third-party’s servers, including carriers, chipset suppliers or
customer-designated servers. Quectel, strictly abiding by the relevant laws
and regulations, shall retain, use, disclose or otherwise process relevant
data for the purpose of performing the service only or as permitted by
applicable laws. Before data interaction with third parties, please be
informed of their privacy and data security policy.
Disclaimer
- a) We acknowledge no liability for any injury or damage arising from the reliance upon the information.
- b) We shall bear no liability resulting from any inaccuracies or omissions, or from the use of the information contained herein.
- c) While we have made every effort to ensure that the functions and features under development are free from errors, it is possible that they could contain errors, inaccuracies, and omissions. Unless otherwise provided by valid agreement, we make no warranties of any kind, either implied or express, and exclude all liability for any loss or damage suffered in connection with the use of features and functions under development, to the maximum extent permitted by law, regardless of whether such loss or damage may have been foreseeable.
- d) We are not responsible for the accessibility, safety, accuracy, availability, legality, or completeness of information, advertising, commercial offers, products, services, and materials on third-party websites and third-party resources.
Copyright © Quectel Wireless Solutions Co., Ltd. 2022. All rights reserved.
Bluetooth Module Series
- Version: 1.0.3
- Date: 2022-11-18
- Status: Preliminary
- Bluetooth Module Series
- HC08U_Hardware_Design