参照 Littelfuse Commercial Vehicle Products 製品
12-Bit Binary Counter
Presettable 4-Bit Down Counters
Counter/Divider Dual 4-Bit Binary UP 14-Pin PDIP Tube
Dual 4-bit Binary Ripple Counter 14-lead DIP
Synchronous 4-bit Decade Counter W/direct Clear 16-lead DIP
Synchronous Up/down Dual Clock Generator Binary W/clear 16-lead DIP
Divide-by-twelve Counter 14-lead DIP
Low Power Schottky Decade Counter (divide By 2 And 5) 14-lead DIP
24-Stage Frequency Divider
7-Stage Ripple Counter