HCF4522B
DESCRIPTION
The HCC4522B and HCF4522B are monolithic integrated circuits, available in 16-lead dual-in-line plastic or ceramic packages and plastic micro packages. The HCC4522B and HCF4522B are programmable, BCD down counters with a decoded ”0” state output for divide-by-N applications. The counters are cascadable. In single stage applications the ”0” output is applied to the Preset Enable input. The cascade feedback input allows cascade divide-by-N operation with no additional gates required. The clock Inhibit input allows disabling of the pulse counting function. 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 mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.27 8.5 2.54 17.78 7.1 5.1 0.130 0.050 0.51 0.77 0.5 0.25 20 0.335 0.100 0.700 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.030 0.020...
