Datasheet Details
Part number:
SN54LS290
Manufacturer:
Motorola Inc
File Size:
205.27 KB
Description:
DECADE COUNTER / 4-BIT BINARY COUNTER
Features
* 0 0.009 0.009 7 Ă 0.244 0.019 ° ° ° ° Case 632-08 J Suffix 14-Pin Ceramic Dual In-Line -A14 8 NOTES: 1. DIMENSIONING
SN54LS290, DECADE COUNTER / 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 separa
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)
SN54LS290 Distributor
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