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PROGRAMMABLE BCD DIVIDER-BY-N COUNTER
.VERYLOWQUIESCENTCURRENT
.HIGHNOISEIMMUNITY
.SUPPLYVOLTAGERANGE3V TO 18V
.INTERNALLYSYNCHRONOUS FOR HIGH IN-
TERNALAND EXTERNAL SPEEDS
.5.0MHz COUNTING RATE
.INCREMENTED ON POSITIVE TRANSITION
OF CLOCK OR NEGATIVE TRANSITION OF
CLOCKINHIBIT
.ASYNCHRONOUSPRESETENABLE
EY
(Plastic Package)
HCC4 52 2B
HCF4522B
PRODUCT PRE VIEW
F
(Ceramic Frit SealPackage)
DESCRI PTION
The HCC4522B and HCF4522B are monolithic integrated circuits, available in 16-lead dual-in-line
plasticor ceramicpackagesand plasticmicropackages.
The HCC4522B and HCF4522B are programmable,BCD down counters with a decoded ”0” state
output for divide-by-N applications. The counters
arecascadable. In single stage applications the ”0”
output is applied to the Preset Enable input. The
cascadefeedback input allowscascade divide-by-N
operation with no additional gates required. The
clock Inhibit input allows disabling of the pulse
counting function.
M1
(Micro Package)
ORDER CODES :
HCC 4522 BF HCF4522 BM1
HCF4522 BEY HCF4522 BC1
PIN CO NNE C TIO N (t op v iew)
(Plastic Chip Carrier)
C1
Applications for these programmable divide-by-N
counters include frequency synthesizers, phaselocked loops and other frequency dividing circuits
where low power and/or high noise immunity is required.
September 1990
1/6
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Plastic DIP16 (0.25) MECHANICAL DATA
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
a1 0.51 0.020
B 0.77 1.65 0.030 0.065
b 0.5 0.020
b1 0.25 0.010
D 20 0.787
E 8.5 0.335
e 2.54 0.100
e3 17.78 0.700
F 7.1 0.280
I 5.1 0.201
L 3.3 0.130
Z 1.27 0.050
mm inch
2/6
P001C