SN74LVC8T245PW

The SN74LVC8T245PW from Texas Instruments is an 8-bit non-inverting bus transceiver designed for bidirectional voltage level translation. It features a fully configurable dual-rail design, allowing each port to operate independently across the 1.65V to 5.5V power supply range. This enables universal low-voltage translation between common voltage nodes like 1.8V, 2.5V, 3.3V, and 5.5V.

The device supports asynchronous communication between data buses. Control inputs for direction (DIR) and output enable (OE) manage data flow, activating either the A-port or B-port outputs, or placing both into a high-impedance state. The input circuitry on both ports is always active and requires a logic HIGH or LOW level to prevent excessive current draw.

Key electrical characteristics include a wide operating voltage range of 1.65V to 5.5V and an operating temperature range of -40°C to 85°C. It offers 3-state outputs and supports partial-power-down applications with its Ioff feature. The transceiver also includes VCC isolation and disconnect features, ensuring outputs are disabled if VCC drops below 100mV or is left floating.

Packaged in a 24-TSSOP, the SN74LVC8T245PW is suitable for surface mount applications. Its robust design includes latch-up performance exceeding 100mA per JESD 78, class II, and ESD protection exceeding 4000V (HBM), 100V (MM), and 1000V (CDM).