SCES693G February 2008 – May 2021 SN74AVC4T774
This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.1 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.1 to 3.6 V. The SN74AVC4T774 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universal low-voltage bi-directional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
The SN74AVC4T774 is designed for asynchronous communication between data buses. The logic levels of the direction-control (DIR) input and the output-enable ( OE) input activate either the B-port outputs or the A-port outputs or place both output ports in the high-impedance mode. The device transmits data from the A bus to the B bus when the B outputs are activated, and from the B bus to the A bus when the A outputs are activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
|PART NUMBER||PACKAGE||BODY SIZE (NOM)|
|SN74AVC4T774PW||TSSOP (16)||5.00 mm × 4.40 mm|
|SN74AVC4T774RGY||VQFN (16)||4.00 mm × 3.50 mm|
|SN74AVC4T774RSV||UQFN (16)||2.60 mm × 1.80 mm|