Texas Instruments SN74HC590AD, SN74HC590ADR, SN74HC590ADW, SN74HC590ADWR, SN74HC590AN Datasheet
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SN54HC590A, SN74HC590A
8-BIT BINARY COUNTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS039C – DECEMBER 1982 – REVISED MA Y 1997
D
8-Bit Counter With Register
D
High-Current 3-State Parallel Register
Outputs Can Drive up to 15 LSTTL Loads
D
Counter Has Direct Clear
D
Package Options Include Plastic
Small-Outline (D, DW), and Ceramic Flat
(W) Packages, Ceramic Chip Carriers (FK),
and Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
The ’HC590A contain an 8-bit binary counter that
feeds an 8-bit storage register. The storage
register has parallel outputs. Separate clocks are
provided for both the binary counter and storage
register. The binary counter features direct clear
(CCLR
ripple-carry output (RCO) is provided for
cascading. Expansion is easily accomplished for
two stages by connecting RCO
CCKEN of the second stage. Cascading for larger
count chains can be accomplished by connecting
RCO of each stage to the counter clock (CCLK)
input of the following stage.
Both CCLK and the register clock (RCLK) input
are positive-edge triggered. If both clocks are
connected together, the counter state is always
one count ahead of the register. Internal circuitry
prevents clocking from the clock enable.
) and count-enable (CCKEN) inputs. A
of the first stage to
SN54HC590A ...J OR W PACKAGE
SN74HC590A . . . D, DW, OR N PACKAGE
SN54HC590A . . . FK PACKAGE
Q
D
Q
E
NC
Q
F
Q
G
NC – No internal connection
(TOP VIEW)
Q
1
B
Q
2
C
Q
3
D
Q
4
E
5
Q
F
6
Q
G
7
Q
H
GND
8
(TOP VIEW)
CQB
Q
3212019
4
5
6
7
8
910111213
H
Q
NC
NC
GND
16
15
14
13
12
11
10
9
VCCQ
RCO
V
CC
Q
A
OE
RCLK
CCKEN
CCLK
CCLR
RCO
A
OE
18
RCLK
17
NC
16
CCKEN
15
14
CCLK
CCLR
The SN54HC590A is characterized for operation over the full military temperature range of –55°C to 125°C. The
SN74HC590A 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.
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.
Copyright 1997, Texas Instruments Incorporated
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
SN54HC590A, SN74HC590A
8-BIT BINARY COUNTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS039C – DECEMBER 1982 – REVISED MA Y 1997
logic symbol
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
Pin numbers shown are for the D, DW, J, N, and W packages.
†
14
OE
RCLK C2
CCKEN
CCLK 1+
CCLR
13
12
11
10
EN3
G1
CT = 0
CTR8
(CT = 255) Z4
2D 3
9
15
RCO
Q
A
1
Q
B
2
Q
C
3
Q
D
4
Q
E
5
Q
F
6
Q
G
7
Q
H
4
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic diagram (positive logic)
14
OE
RCLK
13
SN54HC590A, SN74HC590A
8-BIT BINARY COUNTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS039C – DECEMBER 1982 – REVISED MA Y 1997
CCKEN
CCLK
CCLR
12
11
10
9
RCO
15
T
R
T
R
T
R
T
R
1R
C1
1S
1R
C1
1S
1R
C1
1S
1R
C1
1S
Q
A
1
Q
B
2
Q
C
3
Q
D
T
R
T
R
T
R
T
R
Pin numbers shown are for the D, DW, J, N, and W packages.
1R
1S
1R
1S
1R
1S
1R
1S
C1
C1
C1
C1
4
Q
E
5
Q
F
6
Q
G
7
Q
H
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
SN54HC590A, SN74HC590A
UNIT
‡
8-BIT BINARY COUNTERS
WITH 3-STATE OUTPUT REGISTERS
SCLS039C – DECEMBER 1982 – REVISED MA Y 1997
absolute maximum ratings over operating free-air temperature range
Supply voltage range, V
–0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CC
†
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±35 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±70 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θ
(see Note 2): D package 113°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JA
DW package 105°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 78°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
stg
recommended operating conditions
SN54HC590A SN74HC590A
MIN NOM MAX MIN NOM MAX
V
V
V
V
V
t
t
T
‡
If this device is used in the threshold region (from VILmax = 0.5 V to VIHmin = 1.5 V), there is a potential to go into the wrong state from induced
grounding, causing double clocking. Operating with the inputs at tt = 1000 ns and VCC = 2 V does not damage the device; however, functionally ,
the CLK inputs are not ensured while in the shift, count, or toggle operating modes.
Supply voltage 2 5 6 2 5 6 V
CC
VCC = 2 V 1.5 1.5
High-level input voltage
IH
Low-level input voltage
IL
Input voltage 0 V
I
Output voltage 0 V
O
Input transition (rise and fall) time
Operating free-air temperature –55 125 –40 85 °C
A
VCC = 4.5 V
VCC = 6 V 4.2 4.2
VCC = 2 V 0 0.5 0 0.5
VCC = 4.5 V
VCC = 6 V 0 1.8 0 1.8
VCC = 2 V 0 1000 0 1000
VCC = 4.5 V
VCC = 6 V 0 400 0 400
3.15 3.15
0 1.35 0 1.35
CC
CC
0 500 0 500
0 V
0 V
CC
CC
V
V
V
V
ns
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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