ST HCF4020B User Manual
HCF4020B
RIPPLE-CARRY BINARY COUNTER/DIVIDERS 14 STAGE
■ MEDIUM SPEED OPERATION:
16MHz(Typ.) at V
■ FULLY STATIC OPERATION
■ COMMON RESET
■ BUFFERED INPUTS AND OUTPUTS
■ STANDARDIZED SYMMETRICAL OUTPUT
CHARACTERISTICS
■ QUIESCENT CURRENT SPECIFIED UP TO
20V
■ 5V,10V AND 15V PARAMETRIC RATINGS
■ INPUT LEAKAGE CURRENT
I
= 100nA (MAX) AT VDD=18VTA= 25°C
I
■ 100% TESTED FOR QUIESCENT CURRENT
DESCRIPTION
HCF4020B is a monolithic integrated circuit
fabricated in Metal Oxide Semiconductor
technology available in DIP and SOP packages.
HCF4020B is a ripple carry binary counter. All
counter stages are master-slav e flip-flops. T he
state of a c ount er advances one count on the
DD
= 10V
DIP SOP
ORDER CODES
PACKAGE TUBE T & R
DIP HCF4020BEY
SOP HCF4020BM1 HCF4020M013TR
negative trans ition of each input pulse; ahigh level
on the RESET line resets the counter to its all
zeros stage. Schmitt trigger action on the input
pulse line permits unlimited clock r ise and fall
times.
All inputs and outputs are buffered.
PIN CONNECTION
1/11March 2004
HCF4020B
IINPUT EQ UIVALENT CIRCUIT PIN DESCRIPTION
PIN N° SYMBOL NAME AND FUNCTION
9, 7, 5, 4, 6,
13, 12, 14,
15, 1, 2, 3
11 RESET Reset Input
10 Φ Input Pulses
8
16
FUNCTIONAL DIAGRAM
Q1, Q4 to
Q14
V
V
SS
DD
14 BufferedOutputs
Negative Supply Voltage
Positive Supply Voltage
TRUTH TABLE
Φ RESET OUTPUT STATE
XHALLOUTPUTS="L"
X : Don’tCare
LOGIC DIAGRAM
2/11
LNOCHANGE
L ADVANCE TO NEXT STATE
HCF4020B
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
V
P
T
T
stg
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied.
All voltage valuesarereferredto V
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
V
T
Supply Voltage
DD
DC Input Voltage -0.5 to VDD+0.5
I
DC Input Current
I
I
Power Dissipation per Package 200 mW
D
-0.5 to +22 V
± 10 mA
Power Dissipation per Output Transistor 100 mW
Operating Temperature
op
Storage Temperature
pin voltage.
SS
Supply Voltage
DD
Input Voltage 0 to V
I
Operating Temperature
op
-55 to +125 °C
-65 to +150 °C
3to20 V
DD
-55 to 125 °C
V
V
3/11
HCF4020B
DC SPECIFICATIONS
Test Condition Value
T
Symbol Parameter
I
Quiescent Current 0/5 5 0.04 5 150 150
L
V
(V)
V
I
(V)
|I
|
O
O
(µA)
V
DD
(V)
= 25°C
A
Min. Typ. Max. Min. Max. Min. Max.
0/10 10 0.04 10 300 300
0/15 15 0.04 20 600 600
0/20 20 0.08 100 3000 3000
V
High Level Output
OH
Voltage
0/5 <1 5 4.95 4.95 4.95
0/15 <1 15 14.95 14.95 14.95
V
Low Level Output
OL
Voltage
5/0 <1 5 0.05 0.05 0.05
15/0 <1 15 0.05 0.05 0.05
V
High Level Input
IH
Voltage
0.5/4.5 <1 5 3.5 3.5 3.5
1.5/13.5 <1 15 11 11 11
V
Low Level Input
IL
Voltage
4.5/0.5 <1 5 1.5 1.5 1.5
13.5/1.5 <1 15 4 4 4
I
OH
Output Drive
Current
0/5 2.5 <1 5 -1.36 -3.2 -1.1 -1.1
0/5 4.6 <1 5 -0.44 -1 -0.36 -0.36
0/10 9.5 <1 10 -1.1 -2.6 -0.9 -0.9
0/15 13.5 <1 15 -3.0 -6.8 -2.4 -2.4
I
OL
Output Sink
Current
0/5 0.4 <1 5 0.44 1 0.36 0.36
0/15 1.5 <1 15 3.0 6.8 2.4 2.4
I
Input Leakage
I
Current
Input Capacitance
C
I
The Noise Margin for both "1"and "0" levelis: 1V min.with VDD=5V, 2V min. with VDD=10V, 2.5V min. with VDD=15V
0/18 Any Input 18
Any Input 5 7.5 pF
±10
-5
-40 to 85°C -55 to 125°C
±0.1 ±1 ±1 µA
Unit
µA
V0/10 <1 10 9.95 9.95 9.95
V10/0 <1 10 0.05 0.05 0.05
V1/9 <1 10 7 7 7
V9/1 <1 10 3 3 3
mA
mA0/10 0.5 <1 10 1.1 2.6 0.9 0.9
4/11
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