TECHNICAL DATA
IW4024B
7 Stage Ripple-Carry Binary
Counter/Divider
High-Voltage Silicon-Gate CMOS
The IW4024B is ripple-carry binary counter. All counter stages are
master-slave flip-flops. The state of a counter advances one count on the
negative transition of each input pulse; a high level on the RESET line
resets the counter to its all zeros state. Schmitt trigger action on the input-
pulse line permits unlimited rise and fall times.
•
Operating Voltage Range: 3.0 to 18 V
•
Maximum input current of 1
μA
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
ORDERING INFORMATION
IW4024BN Plastic
IW4024BD SOIC
T
A
= -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Clock
Reset
L
L
X
H
Output
Output state
No change
Advance to
next state
All Outputs
are low
PIN 14 =V
CC
PIN 7 = GND
PIN 8,10,13 = NO CONNECTION
X=don’t care
1
IKSEMICON [ IK SEMICON CO., LTD ]
