BoardPilotTXS0108E 8-channel level shifter with ESP32
Supply 3.3 V
Bus GPIO
Pins and ESP32 wiring
| Pin | Role | ESP32 pin | Notes |
|---|---|---|---|
| VA | Power | 3V3 | Low side supply: 3.3 V from the ESP32 (1.2 to 3.6 V) |
| A1 | Not wired to the ESP32 | — | Low side: to ESP32 GPIOs |
| A2 | Not wired to the ESP32 | — | |
| A3 | Not wired to the ESP32 | — | |
| A4 | Not wired to the ESP32 | — | |
| A5 | Not wired to the ESP32 | — | |
| A6 | Not wired to the ESP32 | — | |
| A7 | Not wired to the ESP32 | — | |
| A8 | Not wired to the ESP32 | — | |
| OE | Not wired to the ESP32 | — | Output enable: HIGH enables. Tie to VA |
| VB | Not wired to the ESP32 | — | High side supply, for example 5 V (1.65 to 5.5 V, at least VA) |
| B1 | Not wired to the ESP32 | — | High side: to the 5 V device |
| B2 | Not wired to the ESP32 | — | |
| B3 | Not wired to the ESP32 | — | |
| B4 | Not wired to the ESP32 | — | |
| B5 | Not wired to the ESP32 | — | |
| B6 | Not wired to the ESP32 | — | |
| B7 | Not wired to the ESP32 | — | |
| B8 | Not wired to the ESP32 | — | |
| GND | Ground | GND |
Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.
Sources
- Texas Instruments TXS0108E datasheet, VCCA 1.2 to 3.6 V, VCCB 1.65 to 5.5 V; OE; weak drive, not for strong pull-ups or heavy loads
Try it in 3D in BoardPilot
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Part data: CC BY 4.0, free to reuse with credit to BoardPilot.