8-stage Presettable Synchronous Down Counters

The HCC40102B, HCC40103B, (extended tempera- ture range) and the HCF40102B HCF40103B (inter- mediate temperature range) aremonolithic integrated circuits, available in 16-lead dual in-line plastic or ce- ramic package. The HCC HCF40102B and HCC/HCF40103B consist of an 8-stage synchronous down counterwith asingle output whichisactivewhen the internal count is zero. The HCC HCF40102B is configured as two cascaded 4-bit BCD Counters and the HCC/HCF40103B contains a single 8-bit binary Counter Each type has control inputs for enabling or disabling the Clock for clearing the Counter to its maximum count, and for presetting the Counter either synchronously or asynchronously. All control inputs and the CARRY-OUT/ZERO-DETECT out- put are active-low Logic In normal operation, the Counter is decremented by one count on each posi- tive transition of the Clock Counting is inhibited when the CARRY-IN Counter ENABLE (CI/CE) input is high. The CARRY-OUT/ZERO-DETEC (CO/ZD) output goes low when the count reaches zero if the CI/CE input is low, and remains low for one full Clock period. When the SYNCHRONOUS PRESET-ENABLE (SPE) input is low, data at the JAM input is clocked into the Counter on the next positive Clock transition regardless of the state of the CI/CE input. By STMicroelectronics
HCF40102B 's PackagesHCF40102B 's pdf datasheet



HCF40102B Pinout will be updated soon..., now you can download the pdf datasheet to check the pinouts !
HCF40102B circuits will be updated soon..., now you can download the pdf datasheet to check the circuits!

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