Service Manuals, User Guides, Schematic Diagrams or docs for : . Electronic Components Datasheets Various datasheets 74ls192

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                                                                                                          SN54/74LS192
                                                                                                          SN54/74LS193
PRESETTABLE BCD/DECADE
UP/DOWN COUNTER
PRESETTABLE 4-BIT BINARY                                                                                 PRESETTABLE BCD / DECADE
UP/DOWN COUNTER                                                                                             UP/ DOWN COUNTER
                                                                                                         PRESETTABLE 4-BIT BINARY
                                                                                                            UP/ DOWN COUNTER
   The SN54/74LS192 is an UP/DOWN BCD Decade (8421) Counter and the
SN54/74LS193 is an UP/DOWN MODULO-16 Binary Counter. Separate                                                  LOW POWER SCHOTTKY
Count Up and Count Down Clocks are used and in either counting mode the
circuits operate synchronously. The outputs change state synchronous with
the LOW-to-HIGH transitions on the clock inputs.
   Separate Terminal Count Up and Terminal Count Down outputs are
provided which are used as the clocks for a subsequent stages without extra                                                                 J SUFFIX
logic, thus simplifying multistage counter designs. Individual preset inputs                                                                CERAMIC
allow the circuits to be used as programmable counters. Both the Parallel                                                                  CASE 620-09
                                                                                                         16
Load (PL) and the Master Reset (MR) inputs asynchronously override the                                        1
clocks.

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