WHADDA WPI474 Logic Level Shifter Module User Manual
- June 5, 2024
- WHADDA
Table of Contents
MANUAL
LOGIC LEVEL SHIFTER MODULE
WPI474
Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal of the device
after its lifecycle could harm the environment. Do not dispose of the unit (or
batteries) as unsorted municipal waste; it should be taken to a specialized
company for recycling. This device should be returned to your distributor or
to a local recycling service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for choosing Whadda! Please read the manual thoroughly before
bringing this device into service. If the device was damaged in transit, do
not install or use it and contact your dealer.
Safety Instructions
**** Read and understand this manual and all safety signs before using this appliance.
**** For indoor use only.
- This device can be used by children aged 8 years and above, and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning the use of the device in a safe way and understanding the hazards involved. Children shall not play with the device. leaning and user maintenance shall not be made by children without supervision.
General Guidelines
- Refer to the Velleman ® Service and Quality Warranty on the last pages of this manual.
- All modifications of the device are forbidden for safety reasons. Damage caused by user modifications to the device is not covered by the warranty.
- Only use the device for its intended purpose. Using the device in an unauthorized way will void the warranty.
- Damage caused by disregard of certain guidelines in this manual is not covered by the warranty and the dealer will not accept responsibility for any ensuing defects or problems.
- Nor Velleman NV nor its dealers can be held responsible for any damage (extraordinary, incidental, or indirect) – of any nature (financial, physical…) arising from the possession, use, or failure of this product.
- Keep this manual for future reference.
What is Arduino®
Arduino® is an open-source prototyping platform based on easy-to-use hardware
and software. Arduino® boards are able to read inputs – light-on sensor, a
finger on a button, or a Twitter message – and turn them into an output –
activating a motor, turning on an LED, or publishing something online. You can
tell your board what to do by sending a set of instructions to the
microcontroller on the board. To do so, you use the Arduino programming
language (based on Wiring) and the Arduino ® software IDE (based on
Processing).
Additional shields/modules/components are required for reading a Twitter
message or publishing online.
Surf to www.arduino.cc for more information
Product overview
The Whadda Logic Level Shifter module provides 8 logic conversion channels to
enable microcontrollers, sensors, and modules with different logic level
voltages to communicate with each other. Each channel is fully bidirectional
and is compatible with both open-drain and push-pull logic drivers. The module
can be used to convert 3.3 V to 5 V, 1.8-3.3. V and other common logic levels.
It is recommended to pull the Output Enable pin high with a pullup resistor to
ensure the outputs are properly enabled. If the different logic level data
lines need to be isolated, the Output Enable line can be pulled low. This
will put all of the I/O channels in a high-impedance state.
Specifications
IC type: TI TXS0108E
Low-level voltage range: 1,4 – 3,6 V
High-level voltage range: 1,65 – 5,5 V
Dimensions (W x L x H): 22,4 x 26,7 x 12,5 mm
Wiring description
| Pin | Name | Description |
|---|---|---|
| VA | Low voltage supply (1,4 – 3,6 V) | The voltage supply of the low-level side |
should always be lower than the voltage on the VB pin
A1| Low voltage I/O channel 1| Input-Output channel 1 of the low-level side
A2| Low voltage I/O channel 2| Input-Output channel 2 of the low-level side
A3| Low voltage I/O channel 3| Input-Output channel 3 of the low-level side
A4| Low voltage I/O channel 4| Input-Output channel 4 of the low-level side
A5| Low voltage I/O channel 5| Input-Output channel 5 of the low-level side
A6| Low voltage I/O channel 6| Input-Output channel 6 of the low-level side
A7| Low voltage I/O channel 7| Input-Output channel 7 of the low-level side
A8| Low voltage I/O channel 8| Input-Output channel 8 of the low-level side
OE| Output Enable| Disables the device when set low, which places all I/O
channels in the high-impedance state.
VB| High voltage supply (1,65 – 5,5 V)| The voltage supply of the high-level
side should always be higher than the voltage on the VA pin
B1| High voltage I/O channel 1| Input-Output channel 1 of the high-level side
B2| High voltage I/O channel 2| Input-Output channel 2 of the high-level side
B3| High voltage I/O channel 3| Input-Output channel 3 of the high-level side
B4| High voltage I/O channel 4| Input-Output channel 4 of the high-level side
B5| High voltage I/O channel 5| Input-Output channel 5 of the high-level side
B6| High voltage I/O channel 6| Input-Output channel 6 of the high-level side
B7| High voltage I/O channel 7| Input-Output channel 7 of the high-level side
B8| High voltage I/O channel 8| Input-Output channel 8 of the high-level side
GND| Ground| Ground, 0 V
Modifications and typographical errors reserved – © Velleman Group NV. WPI474
Velleman Group NV, Legen Heirweg 33 – 9890 Gavere.