M54/74HC4020
M54/74HC4040
March 1993
HC4040 12 STAGE BINARY COUNTER
HC4020 14 STAGE BINARY COUNTER
B1R
(Plastic Package)
ORDER CODES :
M54HCXXXF1R
M74HCXXXM1R
M74HCXXXB1R
M74HCXXXC1R
F1R
(Ceramic Package)
M1R
(Micro Package)
C1R
(Chip Carrier)
PIN CONNECTION (top view)
.
HIGH SPEED
f
MAX
= 73 MHz (TYP.) at V
CC
= 5 V
.
LOW POWER DISSIPATION
I
CC
= 4
A (MAX.) at T
A
= 25
o
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL OUTPUT IMPEDANCE
|I
OH
| = I
OL
= 4 mA (MIN.)
.
BALANCED PROPAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V to 6 V
.
PIN AND FUNCTION COMPATIBLE WITH
4020B/4040B
DESCRIPTION
The M54/74HC4020/HC4040
are high speed
CMOS
14/12-STAGE
BINARY
COUNTER
fabricated in silicon gate C
2
MOS technology. They
have the same high speed performance of LSTTL
combined with true CMOS low consumption.
A clear input is used to reset the counter to the all
low level state. A high level on CLEAR accomplishes
the reset function. A negative transition on the
CLOCK input increments the counter by one.
For HC4020 twelve kind od divided output are
provided; 1st and 4th stage to 14th stage.
The maximum division available at last stage is
1/16384 x f
IN
at clock.
For HC4040 each division stage has an output; the
final frequency is 1/4096 x f
IN
.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
HC4020
HC4040
HC4020
HC4040
1/13
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC4020)
PIN No
SYMBOL
NAME AND FUNCTION
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
Q1, Q4 to
Q14
Parallel Outputs
10
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
11
CLEAR
Reset Inputs
8
GND
Ground (0V)
16
V
CC
Positive Supply Voltage
IEC LOGIC SYMBOLS
PIN DESCRIPTION (HC4040)
PIN No
SYMBOL
NAME AND FUNCTION
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
Q1 to Q12
Parallel Outputs
10
CLOCK
Clock Input (LOW to
HIGH, edge triggered)
11
CLEAR
Reset Inputs
8
GND
Ground (0V)
16
V
CC
Positive Supply Voltage
TRUTH TABLE
CLOCK
CLEAR
OUTPUT STATE
X
H
ALL OUTPUTS = "L"
L
NO CHANGE
L
ADVANCE TO NEXT STATE
HC4020
HC4040
M54/M74HC4020/4040
2/13
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
25
mA
I
CC
or I
GND
DC V
CC
or Ground Current
50
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/M74HC4020/4040
5/13
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