FEATURES

· Member of the Texas Instruments Widebus™

Family

· Operates From 1.65 V to 3.6 V

· Max tpd of 3.6 ns at 3.3 V

· ±24-mA Output Drive at 3.3 V

· Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

· Latch-Up Performance Exceeds 250 mA Per

JESD 17

· ESD Protection Exceeds JESD 22

- 2000-V Human-Body Model (A114-A)

- 200-V Machine Model (A115-A)

DESCRIPTION/ORDERING INFORMATION

This 18-bit universal bus driver is designed for 1.65-V

to 3.6-V VCC operation.

Data flow from A to Y is controlled by the

output-enable (OE) input. The device operates in the

transparent mode when the latch-enable (LE) input is

high. The A data is latched if the clock (CLK) input is

held at a high or low logic level. If LE is low, the A

data is stored in the latch/flip-flop on the low-to-high

transition of CLK. When OE is high, the outputs are in

the high-impedance state.

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.

Active bus-hold circuitry holds unused or undriven

inputs at a valid logic state. Use of pullup or pulldown

resistors with the bus-hold circuitry is not

recommended.