Datasheet Details
Part number:
54LS290, 54LS293
Manufacturer:
Motorola
File Size:
74.20 KB
Description:
4-bit binary counter.
Note:
This datasheet PDF includes multiple part numbers: 54LS290, 54LS293.
Please refer to the document for exact specifications by model.
54LS290, 54LS293, 4-BIT BINARY COUNTER
The LS290 and LS293 are 4-bit ripple type Decade, and 4-Bit Binary counters respectively.
Each device consists of four master / slave flip-flops which are internally connected to provide a divide-by-two section and a divide-by-five (LS290) or divide-by-eight (LS293) section.
Each section has a separ
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 (Clea
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