JM38510/31509BFA Texas Instruments - Yeehing Electronics

Synchronous Up/Down Counters With Down/Up Mode Control

Pricing (USD)

Quantity	Unit Price
1 — 99	30.294
100 — 249	26.928
250 — 999	22.136
1,000 +	13.86

The above prices are for reference only.

Specifications

For more information, please refer to datasheet

Documents

JM38510/31509BFA Datasheet

More Information

The '190, 'LS190, '191, and 'LS191 are synchronous, reversible up/down counters having a complexity of 58 equivalent gates. The '191 and 'LS191 are 4-bit binary counters and the '190 and 'LS190 are BCD counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the steering logic. This mode of operation eliminates the output counting spikes normally associated with asynchronous (ripple clock) counters.