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TC74AC390P

Part Number	TC74AC390P
Manufacturer	Toshiba Semiconductor
Description	Dual Decade Counter
Published	Aug 25, 2006
Detailed Description	TC74AC390P/F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC390P, TC74AC390F Dual Decade Counter The ...
Datasheet	TC74AC390P PDF File

Overview

TC74AC390P/F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC390P, TC74AC390F Dual Decade Counter The TC74AC390 is an advanced high speed CMOS DUAL DECADE COUNTER fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
It consists of two independent 4-bit counters, each composed of a divide-by-two and a divide-by-five counter.
The divide-by-two counter is incremented on the negative going transition of clock A ( CKA ).
The divided-by-five counter is incremented on the negative going transition of clock B ( CKB ).
The counter can be cascaded to form decade, bi-quinary, or various combinations up to a divide-by-100 counter.
When the CLEAR input is set high, the Q outputs are set to low independent of the clock inputs.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
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