TXS0108E 8-Channel Bidirectional Logic Level Converter — 3.3V to 5V
The TXS0108E from Texas Instruments is an 8-channel bidirectional level shifter that translates logic signals between 1.2V–3.6V (VCCA side) and 1.65V–5.5V (VCCB side) without direction control pins. Each channel auto-detects signal direction using internal circuitry, making it the cleanest solution for SPI, I2C, and UART buses between 3.3V MCUs and 5V peripherals where a manual direction control pin would complicate the design.
- 8 independent channels — bidirectional, auto-direction detection
- VCCA: 1.2V–3.6V (3.3V ESP32 or Raspberry Pi side)
- VCCB: 1.65V–5.5V (5V Arduino or peripheral side)
- No direction control pins — auto-sensing per channel
- Up to 110Mbps data rate (push-pull mode)
- SOIC-20 or DIP module
| Specification | Value |
|---|---|
| Chip | TXS0108E (TI) |
| Channels | 8, bidirectional |
| VCCA range | 1.2V – 3.6V |
| VCCB range | 1.65V – 5.5V |
| Data rate | 110Mbps (push-pull) / 2Mbps (open-drain) |
Does the TXS0108E work with I2C?
Yes, but with a caveat. The TXS0108E's auto-direction detection requires a brief voltage transition to sense direction — I2C's open-drain signals work correctly as long as pull-up resistors are fitted on both sides. Remove any high-value pull-ups and use 4.7k ohm on each side. For pure SPI (push-pull), the TXS0108E works cleanly without modification.
Best for
ESP32-to-Arduino 5V peripheral interfacing, 3.3V MCU to 5V LCD, 3.3V to 5V relay module control, mixed-voltage SPI buses, UART level shifting, and any 8-line interface crossing a 3.3V/5V boundary.
Why Kunkune
Shipped from UK stock. 60-day returns, no minimum order. Fast Royal Mail delivery.
Buying in bulk? For orders of 10+ units, contact us for trade pricing.
