SGS Thomson Microelectronics HCF4522B Datasheet

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

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