Part Number: TXS0108E
Hi Team,
Posting on behalf of our customer.
I'll share this E2E post with our customer so they can reply when needed.
I am using the TXS0108E for bidirectional level shifting between an ESP32-S3 Mini and an ICM-20948 IMU (1.8V logic) over I²C.
System Details:
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MCU: ESP32-S3 Mini (3.3V logic)
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IMU: ICM-20948 (1.8V I²C logic)
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Level Translator: TXS0108E
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Pull-ups:
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10kΩ pull-ups to 3.3V on SDA and SCL (ESP side)
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10kΩ pull-ups to 1.8V on SDA and SCL (IMU side)
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Common ground between all devices
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VCCA = 1.8V, VCCB = 3.3V
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OE pin tied high with 3.3V and Pull-down through 10K resistor
Observed Behavior (Measured on DSO):
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On the ESP32 side (before TXS0108E):
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SDA and SCL both toggle correctly.
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On the IMU side (after TXS0108E):
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SCL toggles correctly.
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SDA does NOT toggle (remains high, no valid I²C waveform observed).
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Power rails are stable and the ESP32 is initiating I²C communication.
Regards,
Danilo
