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TEXAS INSTRUMENTS  SN74LS390N  74LS, 74LS390, DIP16, 5.25V

TEXAS INSTRUMENTS SN74LS390N
Technical Data Sheet (10.07KB) EN See all Technical Docs

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Product Overview

The SN74LS390N is a 4-bit dual Decade Counter contains eight master-slave flip-flops and additional gating to implement two individual four-bit counters. It incorporates dual divide-by-two and divide-by-five counter, 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. It comprises 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. It has parallel outputs from each counter stage so that any submultiple of the input count frequency is available for system-timing signals.
  • Direct clear for each 4-bit counter
  • Buffered outputs reduce possibility of collector commutation

Product Information

Counter Type:
Decade
Clock Frequency:
35MHz
Count Maximum:
10
No. of Pins:
16Pins
Supply Voltage Min:
4.75V
Supply Voltage Max:
5.25V
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Logic Case Style:
DIP
MSL:
-
SVHC:
No SVHC (15-Jun-2015)

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Applications

  • Aerospace, Defence, Military

Legislation and Environmental

Moisture Sensitivity Level:
-
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.001667

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