BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS

The SN54 /74LS168 and SN54 /74LS169 are fully synchronous 4-stage up/down counters featuring a preset capability for programmable operation, carry lookahead for easy cascading and a U/D input to control the direction of counting. The SN54 /74LS168 counts in a BCD decade (8, 4, 2, 1) sequence, whil

文件：272.36 Kbytes 页数：8 Pages

MOTOROLA

摩托罗拉

Synchronous 4-Bit Up/Down Binary Counter

General Description This synchronous presettable counter features an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs all change at the same time when so instructed

文件：72.52 Kbytes 页数：8 Pages

FAIRCHILD

仙童半导体

Synchronous 4-Bit Up/Down Binary Counter

General Description This synchronous presettable counter features an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs all change at the same time when so instructed

文件：72.52 Kbytes 页数：8 Pages

FAIRCHILD

仙童半导体

SYNCHRONOUS 4-BIT UP/DOWN BINARY COUNTERS

文件：415.9 Kbytes 页数：10 Pages

TI

德州仪器