1FEATURES

2· Member of the Texas Instruments Widebus?

Family

· Optimized for 1.8-V Operation and Is 3.6-V I/O

Tolerant to Support Mixed-Mode Signal

Operation

· Ioff Supports Partial-Power-Down Mode

Operation

· Sub-1-V Operable

· Max tpd of 2 ns at 1.8 V

· Low Power Consumption, 20-mA Max ICC

· ±8-mA Output Drive at 1.8 V

· Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

· ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION

This 16-bit buffer/driver is operational at 0.8-V to

2.7-V VCC, but is designed specifically for 1.65-V to

1.95-V VCC operation.

The SN74AUC16244 is designed specifically to

improve the performance and density of 3-state

memory address drivers, clock drivers, and

bus-oriented receivers and transmitters.

The device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. It provides true outputs and

symmetrical active-low output-enable (OE) inputs.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,

preventing damaging current backflow through the device when it is powered down.