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 ...