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STMicroelectronics Electronic Components Datasheet

M74HC4040 Datasheet

HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER

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M54/74HC4020
M54/74HC4040
HC4020 14 STAGE BINARY COUNTER
HC4040 12 STAGE BINARY COUNTER
. HIGH SPEED
fMAX = 73 MHz (TYP.) at VCC = 5 V
. LOW POWER DISSIPATION
ICC = 4 µA (MAX.) at TA = 25 oC
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
|IOH| = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V to 6 V
. PIN AND FUNCTION COMPATIBLE WITH
4020B/4040B
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HCXXXF1R M74HCXXXM1R
M74HCXXXB1R M74HCXXXC1R
DESCRIPTION
The M54/74HC4020/HC4040 are high speed
CMOS 14/12-STAGE BINARY COUNTER
fabricated in silicon gate C2MOS 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.
The maximum division available at last stage is
1/16384 x fIN at clock.
For HC4040 each division stage has an output; the
final frequency is 1/4096 x fIN.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
For HC4020 twelve kind od divided output are
provided; 1st and 4th stage to 14th stage.
PIN CONNECTION (top view)
HC4020
HC4040
HC4020
HC4040
March 1993
1/13


STMicroelectronics Electronic Components Datasheet

M74HC4040 Datasheet

HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER

No Preview Available !

M54/M74HC4020/4040
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HC4020)
PIN No
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
10
11
8
16
SYMBOL
Q1, Q4 to
Q14
CLOCK
CLEAR
GND
VCC
NAME AND FUNCTION
Parallel Outputs
Clock Input (LOW to
HIGH, edge triggered)
Reset Inputs
Ground (0V)
Positive Supply Voltage
IEC LOGIC SYMBOLS
HC4020
PIN DESCRIPTION (HC4040)
PIN No
9, 7, 6, 5,
3, 2, 4, 13,
12, 14, 15,
1
10
11
8
16
SYMBOL
Q1 to Q12
CLOCK
CLEAR
GND
VCC
NAME AND FUNCTION
Parallel Outputs
Clock Input (LOW to
HIGH, edge triggered)
Reset Inputs
Ground (0V)
Positive Supply Voltage
HC4040
TRUTH TABLE
CLOCK
X
2/13
CLEAR
H
L
L
OUTPUT STATE
ALL OUTPUTS = ”L”
NO CHANGE
ADVANCE TO NEXT STATE


Part Number M74HC4040
Description HC4020 14 STAGE BINARY COUNTER HC4040 12 STAGE BINARY COUNTER
Maker ST Microelectronics
Total Page 13 Pages
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