DM74LS191, DM74LS190 Synchronous 4-Bit Up/Down Counters

National Semiconductor

Description

DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchronous 4-Bit Up Down Counters with Mode Control May 1989 DM54LS190 DM74LS190 DM54LS191 DM74LS191 Synchr.
These circuits are synchronous reversible up down counters The LS191 is a 4-bit binary counter and the LS190 is a BCD counter Synchronous operation is.

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DM74LS191 Datasheet Preview — This datasheet PDF includes multiple part numbers: DM74LS191, DM74LS190. Please refer to the document for exact specifications by model.

Datasheet Specifications

Part number: DM74LS191, DM74LS190
Manufacturer: National Semiconductor
File Size: 125.07 KB
Datasheet: DM74LS190-NationalSemiconductor.pdf
Description: Synchronous 4-Bit Up/Down Counters
Note: This datasheet PDF includes multiple part numbers: DM74LS191, DM74LS190.
Please refer to the document for exact specifications by model.

Applications

* Y Average propagation delay 20 ns Y Typical clock frequency 25 MHz Y Typical power dissipation 100 mW Connection Diagram Dual-In-Line-Package TL F 6405-1 Order Number DM54LS190J DM54LS191J DM54LS190W DM54LS191W DM74LS190M DM74LS191M DM74LS190N or DM74LS191N See NS Package Number J16A M16A N16A or

DM74LS191 Distributors

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DM74LS190 Synchronous 4-Bit Down Counters National Semiconductor

National Semiconductor DM74LS191-like datasheet