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TXS0108E 8-bit Bidirectional Voltage Converter High-speed Full-duplex 8-Channel Level Conversion Module Converter
Features
- High-speed full-duplex 8-way level shifter module capable of bidirectional communication.
- Supports 1.2V-3.6V on VCCA side, 1.65V-5.5V on VCCB side, 3.3-5V, 1.8-3.3V and other general level conversion functions.
Main Applications:
- 5V microcontroller and 3.3V module 3.3V microcontroller and 5V module such as communication compatible microcontroller and SD card communication level conversion to support microcontroller and iic, spi serial device level conversion, IO high level effective to enable OE, it to the low voltage side of IO port It is recommended to connect to the low voltage side of the IO port.
Customer Reviews
- FORIOT’s TXS0108E based 8-channel level shifter modules perform as expected, allowing 8 inputs/outputs to be shifted between two voltage levels bidirectionally. The chip has two ports “A” and “B” with a voltage setting Vcc pin for each port. Port A can have its voltage high level (Vcca) set between 1.4V and 3.6V, and port B can have its voltage high level (Vccb) set between 1.65V and 5.5V. A typical use would be to set the Vcca to 3.3V and Vccb to 5V. This would allow inputs and outputs between two microprocessors or sensors with different voltage high levels to communicate without damaging the low voltage unit. While this device is designed for open-drain applications, the device can also translate push-pull CMOS logic outputs.
- If the OE pin is low, the TXS0108E’s ports are tri-stated and will not pass data. This pin must be high to pass data. Its intended use is to allow a controlled startup of the ports. The pin should be kept low until both Vcca and Vccb are powered up. The datasheet shows this pin tied to a pulldown resistor and an additional microprocessor GPIO pin set as an output on the Vcca side. A discrete pulldown resistor is not installed on the module board, but most microprocessor GPIO pins have a pulldown option. The module board does appear to have the Vcca and Vccb bypass capacitors installed.
- The module board is laid out cleanly and has two mounting screw holes that can be used with either a #6 or M3 screw. The module also comes with 2.54mm spaced male header pins that can be soldered onto the board. It is a useful voltage level shifter module for projects which use components with differing voltage level requirements.
Ed L.
Reviewed in the United States on July 9, 2024
Perfect product to build P B
andi allen
Reviewed in the United States on May 27, 2024
These work as expected. nice for breadboard prototyping and a very useful piece of kit to have.Price per part was good value. They are small
NoDots Light Systems
Reviewed in the United States on May 19, 2024
Used between a PI and IBT_2 motor flawlessly.
Red
Reviewed in the United States on May 16, 2024
Extremely frustrating. Our robotics lab does not have time for defective components.
Heggles
Reviewed in the United States on February 10, 2024
Shipping = AAA+ Order was shipped same day, within hours of payment, arrived the next day before 5.Order of 20 individual antistatic packaged BSS138K 4 channel logic level shifting modules, packed in larger zip lockbag, packed in a larger sealed bag, packed in a larger bubble envelope. Each comes with 2 × male header pins not soldered on(I think all of us who tinker, hate pre-soldered pins 😅)Functions as desired, unsure of the frequency limit yet as I don't have anything hi frequency at 3v3, but I will create a circuit to test and report any issues. At present, the 2khz its being used for works perfect.Comments had me feeling low expectations, and was very happy to be wrong. All items were in the order, order shipped and arrived expediently, and all modules come clearly fresh from assembly as they still have frame parts that need to be broken off. I was more than happy with this purchase as even for custom circuit design, this was cheaper than buying a strip of the bss138's on their own, each included the necessary resistors and caps, and the IC's on boards are easily desoldered for placement on one's own designs. 100% satisfied!
Tom
Reviewed in the United States on December 20, 2024
I use these all the time and they work fine. I never had one that didn't work. But they are very simple devices.
George J. Francis
Reviewed in the United States on November 12, 2024
Just drop them into your prototype and forget them. I've run signals as fast as 1 mhz through them with no issues.
Matthew withy
Reviewed in the United States on December 25, 2023
I use them with ESP32 AND ESP8266 to boost the data signal from 3.3 to 5 volts for LED strips. They do a great job.
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