SN74LS390D Texas Instruments - Yeehing Electronics

Dual 4-Bit Decade Counters

Pricing (USD)

Quantity	Unit Price
1 — 99	1.337
100 — 249	1.104
250 — 999	0.793
1,000 +	0.42

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Counter ICs
RoHS	Y
Mounting Style	SMD/SMT
Package / Case	SOP-16
Counter Type	Decade
Logic Family	LS
Number of Bits	4 bit
Counting Sequence	Up
Operating Supply Voltage	4.75 V to 5.25 V
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Series	SN74LS390
Packaging	Tube
Function	Counter
Operating Temperature Range	0 C to + 70 C
Output Current	8 mA/- 0.4 mA
Brand	Texas Instruments
Product Type	Counter ICs
Factory Pack Quantity	40
Subcategory	Counter ICs
Unit Weight	0.004998 oz

For more information, please refer to datasheet

Documents

SN74LS390D Datasheet

More Information

Each of these monolithic circuits contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters in a single package. The '390 and 'LS390 incorporate dual divide-by-two and divide-by-five counters, which can be used to implement cycle lengths equal to any whole and/or cumulative multiples of 2 and/or 5 up to divide-by-100. When connected as a bi-quinary counter, the separate divide-by-two circuit can be used to provide symmetry (a square wave) at the final output stage. The '393 and 'LS393 each comprise two independent four-bit binary counters each having a clear and a clock input. N-bit binary counters can be implemented with each package providing the capability of divide-by-256. The '390, 'LS390, '393, and 'LS393 have parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals. Series 54 and Series 54LS circuits are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74 and Series 74LS circuits are characterized for operation from 0°C to 70°C.