SN74LVC8T245DWRG4

The SN74LVC8T245DWRG4 from Texas Instruments is an 8-bit, dual-supply bus transceiver designed for bidirectional voltage level translation. It supports a configurable dual-rail design, allowing each port to operate independently within the 1.65-V to 5.5-V power supply range. This enables universal low-voltage translation between common voltage nodes like 1.8-V, 2.5-V, 3.3-V, and 5.5-V.

This transceiver features 3-state outputs and is optimized for asynchronous communication between data buses. The direction-control (DIR) and output-enable (OE) inputs manage data flow, activating either the A-port or B-port outputs, or placing both into a high-impedance state. The device is specified for partial-power-down applications using Ioff, and includes a VCC isolation feature that disables outputs if either VCC input is at ground.

Designed for surface mount, the SN74LVC8T245DWRG4 comes in a 24-SOIC package with a body width of 7.50mm. It operates within an ambient temperature range of -40°C to 85°C. Key electrical characteristics include a data rate of up to 200 Mbps, a propagation delay of 6.6 ns, and an output current of 32mA per channel. ESD protection is robust, exceeding 4000V for the Human-Body Model.