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74LS191.pdf

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74LS191.pdf
Synchronous 4-Bit Up Down Counters with Mode Control
DM54LS190 DM74LS190 DM54LS191 DM74LS191
May 1989




DM54LS190 DM74LS190 DM54LS191 DM74LS191
Synchronous 4-Bit Up Down Counters with Mode Control
General Description
These circuits are synchronous reversible up down coun- Two outputs have been made available to perform the cas-
ters The LS191 is a 4-bit binary count
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