
54AC11592, 74AC11592
8-BIT BINARY COUNTERS
WITH INPUT REGISTERS
SCAS384 – APRIL 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS
77251–1443
Copyright
1992, Texas Instruments Incorporated
1
Parallel 3-State I/O: Register Inputs/Counter
Outputs
Counter Has Direct Overriding Load and
Clear
Flow-Through Architecture Optimizes PCB
Layout
Center-Pin V
CC
and GND Configurations
Minimize High-Speed Switching Noise
EPIC
(Enhanced-Performance Implanted
CMOS) 1-
μ
m Process
500-mA Typical Latch-Up Immunity at 125
°
C
Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
description
The ’AC11592 consists of a parallel input and an
8-bit storage register feeding an 8-bit binary
counter. Both the register and the counter have
individual positive edge-triggered clocks.
The counter (RCO) input has direct load and clear
functions. A low-going RCO pulse will be obtained
when the counter reaches the hex word FF.
Expansion is easily accomplished for two stages
by connecting RCO of the first stage to CCKEN of
the second stage. Cascading for larger count
chains can be accomplished by connecting RCO
of each stage to CCK of the following stage.
The 54AC11592 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
74AC11592 is characterized for operation from –40
°
C to 85
°
C.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
B
C
D
GND
RCO
E
F
G
A
CCK
CCKEN
CCLR
V
CC
CLOAD
RCK
H
54AC11592 . . . J PACKAGE
74AC11592 . . . D OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
RCK
H
NC
G
F
CCK
A
NC
B
C
54AC11592 . . . FK PACKAGE
(TOP VIEW)
C
N
R
E
D
G
N
NC – No internal connection
C
V
C
C
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
P