SN74LVCH8T245PWR

The SN74LVCH8T245PWR from Texas Instruments is an 8-bit noninverting bus transceiver featuring two separate configurable power-supply rails. The A port tracks VCCA (1.65V to 5.5V) and the B port tracks VCCB (1.65V to 5.5V), enabling universal bidirectional translation between voltage nodes such as 1.8V, 2.5V, 3.3V, and 5.5V.

This transceiver supports a maximum data rate of 200 Mbps with a push-pull topology. Key features include bus-hold, output enable, overvoltage tolerant inputs, partial power down (Ioff), and VCC isolation. The propagation delay is 6.5 ns, and the maximum supply current is 0.025 mA.

Designed for surface mounting, the SN74LVCH8T245PWR is available in a 24-TSSOP package. Its operating temperature range is -40°C to 85°C. The device offers robust, glitch-free power supply sequencing and control inputs (DIR and OE) referenced to VCCA. Bus-hold on data inputs eliminates the need for external pullup and pulldown resistors. The VCC isolation and disconnect features ensure that I/O outputs become high-impedance if VCC inputs are below 100mV or left floating.