Datasheet Details
Part number:
SN54LS197, SN54LS197J
Manufacturer:
Motorola
File Size:
Direct Link
Description:
4-stage presettable ripple counters.
Note:
This datasheet PDF includes multiple part numbers: SN54LS197, SN54LS197J.
Please refer to the document for exact specifications by model.
The LS196 and LS197 are asynchronously presettable decade and binary ripple counters.
The LS196 Decade Counter is partitioned into divide-by-two and divide-by-five sections while the LS197 is partitioned into divide-by-two and divideby-eight sections, with all sections having a separate Clock input.
4-STAGE PRESETTABLE RIPPLE COUNTERS The SN54/74LS196 decade counter is partitioned into divide-by-two and divide-by-five sections which can be combined to count either in BCD (8, 4, 2, 1) sequence or in a bi-quinary mode producing a 50% duty cycle output.
The SN54/74LS197 contains divide-by-two and divide-by-eight sections which can be combined to form a modulo-16 binary counter.
Low Power Schottky technology is used to achieve typical count rates of 70 MHz and power dissipation of only 80 mW.
SN54LS197 Features
* D Suffix 14-Pin Plastic SO-14 -A- 14 8 -B- P 0.25 (0.010) M BM 1 7 PL 7 G C R X 45° D14 PL 0.25 (0.010) M T B S AS SEATING K PLANE M F J -A- 14 1 Case 632-08 J Suffix 14-Pin Ceramic Dual In-Line 8 -B- 7 C L -T- SEATING PLANE
SN54LS197 Distributors
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