Eight channels, no direction pin — what auto-direction sensing buys you
The Texas Instruments TXS0108EPWR is an 8-channel bidirectional voltage-level translator that eliminates the direction-control pin by sensing the data flow on each channel automatically. That means one fewer GPIO on the microcontroller and no firmware toggling a DIR line during bus turnarounds — useful when you are translating a mix of I²C, SPI chip selects, and GPIO between a 1.8 V or 3.3 V host and a 5 V peripheral. The part handles both open-drain and push-pull outputs, so it covers multi-master buses and single-ended signalling in the same package.
60 Mbps — fast enough for most serial, not for parallel memory
The 60 Mbps data rate translates to roughly 60 MHz clock-equivalent on a single edge, which comfortably handles SPI at 50 MHz, UART at several Mbps, and general-purpose GPIO toggling. It will not work for DDR memory interfaces or high-speed parallel busses, but for the common case of bridging an MCU to a sensor, display, or legacy ASIC, the margin is generous. The auto-direction architecture introduces a propagation delay around 4–6 ns typical; budget that into your setup-and-hold timing if you are running near the rate limit.
The 5.5 V ceiling on VCCB is the hard limit — a 5 V rail that regulation holds at 5.0 V ±5% is fine; an unregulated 5 V supply that can hit 5.6 V at light load is not. The part is bidirectional, so data flows both ways simultaneously on different channels without a direction pin.
Housed in a 20-TSSOP (4.40 mm body width), surface-mount. The supplier device package is 20-TSSOP.