74ALVCH16373
2.5 V/3.3 V 16-bit D-type transparent latch; 3-state
Rev. 6 — 10 July 2012
Product data sheet
1. General description
The 74ALVCH16373 is 16-bit D-type transparent latch featuring separate D-type inputs for
each latch and 3-state outputs for bus oriented applications.
Incorporates bus hold data inputs which eliminate the need for external pull-up or
pull-down resistors to hold unused inputs.
One latch enable (LE) input and one output enable (OE) are provided per 8-bit section.
The 74ALVCH16373 consists of 2 sections of eight D-type transparent latches with 3-state
true outputs. When LE is HIGH, data at the nDn inputs enter the latches. In this condition
the latches are transparent, therefore a latch output will change each time its
corresponding D-input changes.
When LE is LOW, the latches store the information that was present at the nDn inputs at a
set-up time preceding the LOW-to-HIGH transition of LE. When OE is LOW, the contents
of the eight latches are available at the outputs. 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
latches.
2. Features and benefits
Wide supply voltage range from 1.2 V to 3.6 V
Complies with JEDEC standard JESD8-B
CMOS low power consumption
MULTIBYTE flow-through standard pin-out architecture
Low inductance multiple VCC and GND pins for minimum noise and ground bounce
Direct interface with TTL levels
All data inputs have bus hold
Output drive capability 50 transmission lines at 85 C
Current drive 24 mA at VCC = 3.0 V
