Datasheet

 
  
   
SCLS374L − MAY 1997 − REVISED FEBRUARY 2004
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D Inputs Are TTL-Voltage Compatible
D 8-Bit Serial-In, Parallel-Out Shift
D Shift Register Has Direct Clear
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
description/ordering information
The ’AHCT595 devices contain an 8-bit serial-in,
parallel-out shift register that feeds an 8-bit D-type
storage register. The storage register has parallel
3-state outputs. Separate clocks are provided for
the shift and storage registers. The shift register
has a direct overriding clear (SRCLR
) input, serial
(SER) input, and serial outputs for cascading.
When the output-enable (OE
) input is high, the
outputs are in the high-impedance state.
Both the shift register clock (SRCLK) and storage
register clock (RCLK) are positive-edge triggered.
If both clocks are connected together, the shift
register always is one clock pulse ahead of the
storage register.
ORDERING INFORMATION
T
A
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube SN74AHCT595N SN74AHCT595N
SOIC − D
Tube SN74AHCT595D
AHCT595
SOIC − D
Tape and reel SN74AHCT595DR
AHCT595
−40°C to 85°C
SOP − NS Tape and reel SN74AHCT595NSR AHCT595
−40 C to 85 C
SSOP − DB Tape and reel SN74AHCT595DBR HB595
TSSOP − PW
Tube SN74AHCT595PW
HB595
TSSOP − PW
Tape and reel SN74AHCT595PWR
HB595
CDIP − J Tube SNJ54AHCT595J SNJ54AHCT595J
−55°C to 125°C
CFP − W Tube SNJ54AHCT595W SNJ54AHCT595W
−55 C to 125 C
LCCC − FK Tube SNJ54AHCT595FK SNJ54AHCT595FK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright 2004, Texas Instruments Incorporated
    !"#$%& "!&'& 
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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.
SN54AHCT595 ...J OR W PACKAGE
SN74AHCT595 . . . D, DB, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54AHCT595 . . . FK PACKAGE
(TOP VIEW)
NC − No internal connection
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Q
B
Q
C
Q
D
Q
E
Q
F
Q
G
Q
H
GND
V
CC
Q
A
SER
OE
RCLK
SRCLK
SRCLR
Q
H
4
5
6
7
8
18
17
16
15
14
SER
OE
NC
RCLK
SRCLK
Q
D
Q
E
NC
Q
F
Q
G
Q
NC
SRCLR
H
GND
NC
C
Q
B
V
CC
Q
A
Q
H
Q
910111213
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Summary of content (21 pages)