1 General description

The 74ALVC162834A is an 18-bit registered driver. Data flow is controlled by active low

output enable (OE), active low latch enable (LE) and clock inputs (CP).

When LE is LOW, the A to Y data flow is transparent. When LE is HIGH and CP is held

at LOW or HIGH, the data is latched; on the LOW to HIGH transient of CP the A-data is

stored in the latch/flip-flop.

The 74ALVC162834A is designed with 30 Ω series resistors in both HIGH or LOW output

stages.

When OE is LOW the outputs are active. When OE is HIGH, the outputs go to the high

impedance OFF-state. Operation of the OE input does not affect the state of the latch/

flip-flop.

To ensure the high-impedance state during power up or power down, OE should be tied

to VCC through a pull-up resistor; the minimum value of the resistor is determined by the

current-sinking capability of the driver.

2 Features and benefits

? Wide supply voltage range from 1.2 V to 3.6 V

? CMOS low-power consumption

? Direct interface with TTL levels (2.7 V to 3.6 V)

? Current drive ± 12 mA at 3.0 V

? MULTIBYTE flow-through standard pin-out architecture

? Low inductance multiple VCC and GND pins for minimum noise and ground bounce

? Output drive capability 50 Ω transmission lines at 85°C

? Integrated 30 Ω termination resistors

? Diode clamps to VCC and GND on all inputs

? Input diodes to accommodate strong drivers

? Complies with JEDEC standard no. 8-1A