Part Number
|
DM54ALS390 |
Manufacturer
|
National Semiconductor |
Description
|
Dual 4-Bit Decade Counters |
Published
|
Feb 10, 2014 |
Detailed Description
|
DM54ALS390 DM74ALS390 Dual 4-Bit Decade Counters
PRELIMINARY
April 1987
DM54ALS390 DM74ALS390 Dual 4-Bit Decade Counte...
|
Datasheet
|
DM54ALS390
|
Overview
DM54ALS390 DM74ALS390 Dual 4-Bit Decade Counters
PRELIMINARY
April 1987
DM54ALS390 DM74ALS390 Dual 4-Bit Decade Counters
General Description
Each of these monolithic counters contains eight masterslave flip-flops and additional gating to implement two independent four bit counters in a single package To use their maximum count length the B input is connected to the QA output The input count pulses are applied to input A and the outputs are as described in the appropriate truth table A symmetrical divide-by-ten count can be obtained by connecting the QD output to the A input and applying the input count to the B input
Features
Y Y
Y
Y
Y
Switching specifications at 50 pF Switching speci...
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