SN54LV594A, SN74LV594A
8-BIT SHIFT REGISTERS
WITH OUTPUT REGISTERS
SCLS413B – APRIL 1998 – REVISED SEPTEMBER 1999
SN54LV594A . . . J OR W PACKAGE
SN74LV594A . . . D, DB, NS, OR PW PACKAGE
(TOP VIEW)
EPIC (Enhanced-Performance
Implanted CMOS) Process
Typical V
<0.8 V at V
(Output Ground Bounce)
OLP
CC
= 3.3 V, T = 25°C
Q
Q
V
CC
A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
B
Q
Typical V
(Output V
Undershoot)
C
D
A
OHV
OH
>2 V at V
= 3.3 V, T = 25°C
Q
SER
CC
A
Q
RCLR
RCLK
SRCLK
SRCLR
8-Bit Serial-In, Parallel-Out Shift
Registers With Storage
E
Q
F
Q
G
Independent Direct Overriding Clears
on Shift and Storage Registers
Q
H
GND
Q
H′
Independent Clocks for Shift and
Storage Registers
SN54LV594A . . . FK PACKAGE
(TOP VIEW)
Latch-Up Performance Exceeds 100 mA
Per JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
3
2
1
20 19
18
SER
RCLR
NC
Q
4
5
6
7
8
D
– 1000-V Charged-Device Model (C101)
Q
17
16
E
Package Options Include Plastic
Small-Outline (D, NS), Shrink
Small-Outline (DB), and Thin Shrink
Small-Outline (PW) Packages, Ceramic
Flat (W) Packages, Chip Carriers (FK),
and DIPs (J)
NC
15 RCLK
14
9 10 11 12 13
Q
F
SRCLK
Q
G
description
NC – No internal connection
The ’LV594A devices are 8-bit shift registers
designed for 2-V to 5.5-V V operation.
CC
These devices contain an 8-bit serial-in, parallel-
out shift register that feeds an 8-bit D-type storage
register. Separate clocks (RCLK, SRCLK) and
direct overriding clear (RCLR, SRCLR) inputs are provided on the shift and storage registers. A serial output
(Q ) is provided for cascading purposes.
H′
The shift-register (SRCLK) and storage-register (RCLK) clocks are positive-edge triggered. If the clocks are tied
together, the shift register always is one clock pulse ahead of the storage register.
The SN54LV594A is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74LV594A is characterized for operation from –40°C to 85°C.
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.
EPIC is a trademark of Texas Instruments Incorporated.
Copyright 1999, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265