Quest 计数器

Cut Tape (CT) Active e4 74LV163 logic counter 27.5ns 4.4mm 3.3V 0.02mA

High Speed CMOS Logic 4-Bit Binary Counter with Asynchronous eset 16-SOIC -55 to 125

High Speed CMOS Logic Dual 4-Stage Binary Counters 14-PDIP -55 to 125

High Speed CMOS Logic 8-Stage Synchronous Down Counters 16-PDIP -55 to 125

Texas Instruments CD74HC4520ELOGIC, Dual Binary, Up-counter, 16DIP

Binary Counter, ALS Series, Synchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PDIP16

Positive Edge Trigger; TTL; 16-Lead PDIP; 7 V; 8.5 mA (Typ.); 2 V; 0.8 V

Counter/Divider Dual 4-Bit Binary UP 14-Pin SSOP T/R

Synchronous 4-Bit Binary Counter 16-PDIP 0 to 70

High Speed CMOS Logic Dual Binary Up-Counters 16-SOIC -55 to 125