900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




National Semiconductor Electronic Components Datasheet

54ACT373 Datasheet

Octal Transparent Latch

No Preview Available !

www.DataSheet4U.com
August 1998
54AC373 54ACT373
Octal Transparent Latch with TRI-STATE® Outputs
General Description
The ’AC/’ACT373 consists of eight latches with TRI-STATE
outputs for bus organized system applications. The flip-flops
appear transparent to the data when 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 bus output is in the high
impedance state.
Features
n ICC and IOZ reduced by 50%
n Eight latches in a single package
n TRI-STATE outputs for bus interfacing
n Outputs source/sink 24 mA
n ’ACT373 has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
— ’AC373: 5962-87555
— ’ACT373: 5962-87556
Logic Symbols
IEEE/IEC
DS100329-1
Pin Names
D0– D7
LE
OE
O0– O7
Description
Data Inputs
Latch Enable Input
Output Enable Input
TRI-STATE Latch Outputs
DS100329-2
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
FACT® is a registered trademark of Fairchild Semiconductor Corporation.
© 1998 National Semiconductor Corporation DS100329
www.national.com


National Semiconductor Electronic Components Datasheet

54ACT373 Datasheet

Octal Transparent Latch

No Preview Available !

Connection Diagrams
Pin Assignment for DIP
and Flatpak
Pin Assignment for LCC
DS100329-3
Functional Description
The ’AC/’ACT373 contains eight D-type latches with
TRI-STATE standard outputs. When the Latch Enable (LE)
input is HIGH, data on the Dn inputs enters the latches. In
this condition the latches are transparent, i.e., a latch output
will change state each time its D input changes. When LE is
LOW, the latches store the information that was present on
the D inputs a setup time preceding the HIGH-to-LOW tran-
sition of LE. The TRI-STATE standard outputs are controlled
by the Output Enable (OE) input. When OE is LOW, the stan-
dard outputs are in the 2-state mode. When OE is HIGH, the
standard outputs are in the high impedance mode but this
does not interfere with entering new data into the latches.
DS100329-4
Truth Table
Inputs
Outputs
LE OE Dn
XHX
On
Z
HL L
L
HLH
H
LLX
O0
H = HIGH Voltage Level
L = LOW Voltage Level
Z = High Impedance
X = Immaterial
O0 = Previous O0 before HIGH to Low transition of Latch Enable
www.national.com
2


Part Number 54ACT373
Description Octal Transparent Latch
Maker National Semiconductor
Total Page 10 Pages
PDF Download

54ACT373 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 54ACT373 Octal Transparent Latch
National Semiconductor
2 54ACT374 Octal D Flip-Flop
National Semiconductor
3 54ACT377 Octal D Flip-Flop
National Semiconductor





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy