Low

74LS, 74LS390, DIP16, 5.25V - 

SN74LS390N

TEXAS INSTRUMENTS SN74LS390N

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
SN74LS390N
Order Code:
SC09097
Catalogue page:
  CPCC/3313

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

Applications

Aerospace, Defence, Military

Product Information

:
74LS
:
0°C
:
Decade
:
70°C
:
35MHz
:
16Pins
:
DIP
:
74390
:
-
:
4.75V
:
74LS390
:
Each
:
5.25V
:
10
:
-
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