Datasheet Details
Part number:
SN54LS293, SN54LS290
Manufacturer:
Motorola
File Size:
205.27 KB
Description:
Decade counter / 4-bit binary counter.
Note:
This datasheet PDF includes multiple part numbers: SN54LS293, SN54LS290.
Please refer to the document for exact specifications by model.
SN54LS293, SN54LS290, DECADE COUNTER / 4-BIT BINARY COUNTER
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 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
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