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 2.8 ns at 1.8 V

• Low Power Consumption, 20 μA Max ICC

• ±8-mA Output Drive at 1.8 V

• Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

• 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 edge-triggered D-type flip-flop 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 SN74AUCH16374 is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus

drivers, and working registers. It can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive

transition of the clock (CLK) input, the Q outputs of the flip-flop take on the logic levels set up at the data (D)

inputs.

A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or

low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the

bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines

without interface or pullup components.

OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while

the outputs are in the high-impedance state.