Part Number
|
54LS190 |
Manufacturer
|
National Semiconductor |
Description
|
Synchronous 4-Bit Up/Down Counters |
Published
|
Mar 25, 2014 |
Detailed Description
|
DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchronous 4-Bit Up Down Counters with Mode Control
May 1989
DM54LS190 DM74LS...
|
Datasheet
|
54LS190
|
Overview
DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchronous 4-Bit Up Down Counters with Mode Control
May 1989
DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchronous 4-Bit Up Down Counters with Mode Control
General Description
These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change simultaneously when so instructed by the steering logic This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters The outputs of the four master-slave flip-flops are triggered on a lo...
Similar Datasheet