Download the SN54LS293 datasheet PDF.
This datasheet also covers the SN54LS290 variant, as both devices belong to the same decade counter / 4-bit binary counter family and are provided as variant models within a single manufacturer datasheet.
Full PDF Text Transcription for SN54LS293 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
SN54LS293. For precise diagrams, and layout, please refer to the original PDF.
DECADE COUNTER; 4-BIT BINARY COUNTER The SN54 / 74LS290 and SN54/ 74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divi...
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e type counters partitioned into two sections. Each counter has a divide-by-two section and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters. Both of the counters have a 2-input gated Master Reset (Clear), and the LS290 also has a 2-input gated Master Set (Preset 9). • Corner Power Pin Versions of the LS90 and LS93 • Low Power Consumption . . . Typically 45 mW • High Count Rates . . . Typically 42 MHz • Choice of Counting Modes .
SN54LS293 Datasheet
