M54HC590
M74HC590
March 1993
8 BIT BINARY COUNTER REGISTER (3 STATE)
B1R
(Plastic Package)
ORDER CODES :
M54HC590F1R
M74HC590M1R
M74HC590B1R
M74HC590C1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTIONS (top view)
NC =
No Internal
Connection
.
HIGH SPEED
f
MAX
= 62 MHz (TYP.) AT V
CC
= 5 V
.
LOW POWER DISSIPATION
I
CC
= 4
A (MAX.) AT T
A
= 25
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS (for RCO)
15 LSTTL LOADS (for QA
QH)
.
SYMMETRICAL OUTPUT IMPEDANCE
I
OH
= I
OL
= 6 mA (MIN.) FOR QA ~ QH OUTPUT
I
OH
=
I
OL
= 4 mA (MIN.) FOR RCO OUTPUT
.
BALANCED PROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V TO 6 V
.
PIN AND FUNCTION COMPATIBLE
WITH 54/74LS590
DESCRIPTION
The M54/74HC590 is a high speed CMOS 8-BIT BI-
NARY COUNTER REGISTER (3-STATE) fabri-
cated in silicon gate C
2
MOS technology. It has the
same high speed performance of LSTTL combined
with true CMOS low power consumption.
These devices each contain an 8-bit binary counter
that feeds an 8-bit storage register. The storage reg-
ister has parallel outputs. Separate clocks are pro-
vided for both the binary counter and storage
register. The binary counter features a direct clear
input CCLR and a count enable input CCKEN. For
cascading, a ripple carry output RCO is provided.
Expansion is easily accomplished by tying RCO of
the first stage to CCKEN of the second stage, etc.
Both the counter and register clocks are positive-
edge triggered. If the user wishes to connect both
clocks together, the counter state will always be one
count ahead of the register. Internal circuitry pre-
vents clocking from the clock enable.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
1/14
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
INPUTS
OUTPUT
G
RCK
CCLR
CCKEN
CCK
H
X
X
X
X
Q OUTPUTS DISABLE
L
X
X
X
X
Q OUTPUTS ENABLE
X
X
X
X
COUNTER DATA IS STORED INTO REGISTER
X
X
X
X
REGISTER STATE IS NOT CHANGED
X
X
L
X
X
COUNTER CLEAR
X
X
H
L
ADVANCE ONE COUNT
X
X
H
L
NO COUNT
X
X
H
H
X
NO COUNT
X: DON'T CARE
RCO = QA'
QB'
QC'
QD'
QE'
QF'
QG'
QH' (QA' to QH': INTERNAL OUTPUTS OF THE COUNTER)
LOGIC DIAGRAM
M54/M74HC590
2/14
PIN DESCRIPTION
PIN No
SYMBOL
NAME AND FUNCTION
1, 2, 3, 4, 5,
6, 7, 15
QA to QH
Outputs
11
CCK
Counter Clock Input
12
CCKEN
Counter Clock Enable
Input
13
RCK
Register Clock Input
9
RCO
Ripple Carry Output
14
G
Output Enable Input
10
CCLR
Counter Clear Input
8
GND
Ground (0V)
16
V
CC
Positive Supply Voltage
IEC LOGIC SYMBOL
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
-0.5 to +7
V
V
I
DC Input Voltage
-0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage
-0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
20
mA
I
OK
DC Output Diode Current
20
mA
I
O
DC Output Source Sink Current Per Output Pin (RCO)
(Q
A
- Q
H
)
25
35
mA
I
CC
or I
GND
DC V
CC
or Ground Current
70
mA
P
D
Power Dissipation
500 (*)
mW
T
stg
Storage Temperature
-65 to +150
o
C
T
L
Lead Temperature (10 sec)
300
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
(*) 500 mW:
65
o
C derate to 300 mW by 10mW/
o
C: 65
o
C to 85
o
C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Value
Unit
V
CC
Supply Voltage
2 to 6
V
V
I
Input Voltage
0 to V
CC
V
V
O
Output Voltage
0 to V
CC
V
T
op
Operating Temperature: M54HC Series
M74HC Series
-55 to +125
-40 to +85
o
C
o
C
t
r
, t
f
Input Rise and Fall Time
V
CC
= 2 V
0 to 1000
ns
V
CC
= 4.5 V
0 to 500
V
CC
= 6 V
0 to 400
M54/M74HC590
5/14
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