* s Counts binary s Single down/up count control line s Count enable control input s Ripple clock output for cascading s Asynchronously presettable with load control s Parallel outputs s Cascadable for n-bit applications s Average propagation delay 20 ns s Typical clock frequency 25 MHz s Typical powe
DM74LS191 Datasheet (72.74 KB)
DM74LS191
Fairchild Semiconductor
72.74 KB
Synchronous 4-bit up/down counter.
DM74LS191 Synchronous 4-Bit Up/Down Counter with Mode Control August 1986 Revised February 1999 DM74LS191 Synchronous 4-Bit Up/Down Counter with Mod.
📁 Related Datasheet
DM74LS190 Synchronous 4-Bit Up/Down Counters (National Semiconductor)
DM74LS191 Synchronous 4-Bit Up/Down Counters (National Semiconductor)
DM74LS192 Up/Down Decade Counter (National Semiconductor)
DM74LS193 Synchronous 4-Bit Binary Counter (Fairchild Semiconductor)
DM74LS194A 4-Bit Bidirectional Universal Shift Register (National Semiconductor)
DM74LS194A 4-Bit Bidirectional Universal Shift Register (Fairchild Semiconductor)
DM74LS196 PRESETTABLE DECADE COUNTER (National Semiconductor)
DM74LS197 Presettable Binary Counters (National Semiconductor)
DM74LS10 Triple 3-Input NAND Gate (Fairchild Semiconductor)
DM74LS10 Triple 3-Input NAND Gates (National Semiconductor)
