SN74LS191NSR Texas Instruments - Yeehing Electronics

Synchronous 4-Bit Up/Down Counters With Up/Down Mode Control

Pricing (USD)

Quantity	Unit Price
1 — 99	0.986
100 — 249	0.758
250 — 999	0.558
1,000 +	0.28

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Counter ICs
RoHS	Y
Mounting Style	SMD/SMT
Package / Case	SO-16
Counter Type	Binary
Logic Family	LS
Number of Bits	4 bit
Counting Method	Synchronous
Counting Sequence	Up/Down
Operating Supply Voltage	4.75 V to 5.25 V
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Series	SN74LS191
Packaging	Reel
Function	Counter
Operating Temperature Range	0 C to + 70 C
Output Current	16 mA/- 0.8 mA
Brand	Texas Instruments
Product Type	Counter ICs
Factory Pack Quantity	2000
Subcategory	Counter ICs
Unit Weight	0.007079 oz

For more information, please refer to datasheet

Documents

SN74LS191NSR 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.