SN74HC573N Datasheet, PDF (1/14 Pages) Texas Instruments – OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS

D Wide Operating Voltage Range of 2 V to 6 V
D High-Current 3-State Outputs Drive Bus
Lines Directly or Up To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
SN54HC573A . . . J OR W PACKAGE
SN74HC573A . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
SN54HC573A, SN74HC573A
OCTAL TRANSPARENT DĆTYPE LATCHES
WITH 3ĆSTATE OUTPUTS
SCLS147E − DECEMBER 1982 − REVISED SEPTEMBER 2003
D Typical t_pd = 21 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Bus-Structured Pinout
SN54HC573A . . . FK PACKAGE
(TOP VIEW)
OE 1
1D 2
2D 3
3D 4
4D 5
5D 6
6D 7
7D 8
8D 9
GND 10
20 V_CC
19 1Q
18 2Q
17 3Q
16 4Q
15 5Q
14 6Q
13 7Q
12 8Q
11 LE
3D
3 2 1 20 19
4
18
2Q
4D 5
17 3Q
5D 6
16 4Q
6D 7
15 5Q
7D 8
14 6Q
9 10 11 12 13
description/ordering information
These octal transparent D-type latches feature 3-state outputs designed specifically for driving highly capacitive
or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports,
bidirectional bus drivers, and working registers.
While the latch-enable (LE) input is high, the Q outputs respond to the data (D) inputs. When LE is low, the
outputs are latched to retain the data that was set up.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines
without interface or pullup components.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N
Tube of 25
SN74HC573AN
SN74HC573AN
−40°C to 85°C
SOIC − DW
SSOP − DB
Tube of 40
Reel of 2500
Reel of 2000
SN74HC573ADW
SN74HC573ADWR
SN74HC573ADBR
HC573A
HC573A
TSSOP − PW
Reel of 2000
Reel of 250
SN74HC573APWR
SN74HC573APWT
HC573A
CDIP − J
Tube of 25
SNJ54HC573AJ
SNJ54HC573AJ
−55°C to 125°C CFP − W
Tube of 150
SNJ54HC573AW
SNJ54HC573AW
LCCC − FK
Tube of 55
SNJ54HC573AFK SNJ54HC573AFK
† _{Package drawings, standard packing quantities, thermal data, symbolization, and PCB design}
guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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