IW4020B Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – 14 Stage Ripple-Carry Binary Counter/Divider

IW4020B
Description
The IW4020B is ripple-carry binary counter.All counter stages are master-slave flip-flops.The state of a
counteradvances one count on the negative transition of each input pulse,a high level on the R E SE T line
resets thecounter to its all zeros state.Schmitt trigger action on the input-pulse line permits unlimited rise and
fall times
Features
 Operating Voltage Range: 3.0 to 18 V
 Maximum input current of 1uA at 18 V over full package-
temperature range ;100 nA at 18 V and 25 C
 Noise margin (over full package temperature range):
1.0 V min @ 5.0 V supply
2.0 V min @ 10.0 V supply
2.5 V min @ 15.0 V supply
Logic Diagram
16
DIP - 16
16
SOP - 16
Package
Pin Assignment
10
CLOCK
11
RESET
9
Q1
7 _Q4
5
Q5
4 _Q6
6
Q7
13
Q8
12 _Q9
14 _Q10
15 _Q11
1 _Q12
2
Q13
3
Q14
PIN 16 = VCC
PIN 8 =
GND
Q12 ₁
Q13 2
Q14 ³
Q6 ⁴
Q5 5
Q7 ⁶
Q4 ⁷
GND ⁸
16
15 Q11
14 ^Q10
13 ^Q8
12 ^Q9
11 ^RESET
10 ^CLOCK
9 _Q1
Function Table
Inputs
Clock Reset
L
Output
Output state
No change
L
Advance to
next state
X
H All Outputs
are low
X = don ' t care
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