54LCX16373 Datasheet, PDF (1/5 Pages) National Semiconductor (TI) – Low Voltage 16-Bit Transparent Latch with 5V Tolerant Inputs and Outputs

June 1999
54LCX16373
Low Voltage 16-Bit Transparent Latch with 5V Tolerant
Inputs and Outputs
General Description
The LCX16373 contains sixteen non-inverting latches with
TRI-STATE^® outputs and is intended for bus oriented
applications. The device is byte controlled. The flip-flops
appear transparent to the data when the Latch Enable (LE)
is HIGH. When LE is low, the data that meets the setup time
is latched. Data appears on the bus when the Output Enable
(OE) is LOW. When OE is HIGH, the outputs are in
TRI-STATE.
The LCX16373 is designed for low voltage (3.3V) V_CC
applications with capability of interfacing to a 5V signal
environment.
The LCX16373 is fabricated with an advanced CMOS
technology to achieve high speed operation while
maintaining CMOS low power dissipation.
Features
n 5V tolerant inputs and outputs
n Power down high impedance inputs and outputs
n Supports live insertion/withdrawal
n 2.0V–3.6V V_CC supply operation
n ±24 mA output drive
n Implements patented noise/EMI reduction circuitry
n Functionally compatible with the 54 series 16373
n ESD performance:
Human body model > 2000V
Machine model > 200V
n Standard Microcircuit Drawing (SMD) 5962-9953401
Ordering Code
Order Number
54LCX16373W-QML
Logic Symbol
Package Number
Package Description
WA48A
48-Lead Ceramic Flatpack
Connection Diagram
Pin Assignment for
Cerpack
DS101200-1
Pin Descriptions
Pin Names
OE_n
LE_n
I₀– I₁₅
O₀– O₁₅
Description
Output Enable Input (Active Low)
Latch Enable Input
Inputs
Outputs
TRI-STATE^® is a registered trademark of National Semiconductor Corporation.
© 2001 National Semiconductor Corporation DS101200
DS101200-2
www.national.com