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54LS192 - PRESETTABLE BCD/DECADE UP/DOWN COUNTER

Download the 54LS192 datasheet PDF. This datasheet also covers the 54LS193 variant, as both devices belong to the same presettable bcd/decade up/down counter family and are provided as variant models within a single manufacturer datasheet.

General Description

The LS192 and LS193 are Asynchronously Presettable Decade and 4-Bit Binary Synchronous UP / DOWN (Reversable) Counters.

The operating modes of the LS192 decade counter and the LS193 binary counter are identical, with the only difference being the count sequences as noted in the State Diagrams.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (54LS193-Motorola.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
54LS190 SYNCHRONOUS UP/DOWN COUNTERS Texas Instruments
54LS190 Synchronous 4-Bit Up/Down Counters National Semiconductor
54LS191 SYNCHRONOUS UP/DOWN COUNTERS Texas Instruments
54LS194A 4-Bit Bidirectional Universal Shift Register National Semiconductor
54LS10 Triple 3-Input NAND Gates National Semiconductor

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
54LS190 PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
54LS191 PRESETTABLE BCD/DECADE UP/DOWN COUNTERS
54LS193 PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
54LS122 RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
54LS123 RETRIGGERABLE MONOSTABLE MULTIVIBRATORS

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
PRESETTABLE BCD/DECADE 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 Count Up and Count Down Clocks are used and in either counting mode the www.DataSheet4cUir.ccuoimts 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 logic, thus simplifying multistage counter designs. Individual preset inputs allow the circuits to be used as programmable counters. Both the Parallel Load (PL) and the Master Reset (MR) inputs asynchronously override the clocks.