Datasheet4U Logo Datasheet4U.com

74191 Datasheet

The 74191 is a Synchronous 4-Bit Up/Down Counter. Download the datasheet PDF and view key features and specifications below.

Part Number74191
ManufacturerFairchild Semiconductor
Overview The DM74LS191 circuit is a synchronous, reversible, up/ down counter. Synchronous operation is provided by having all flip-flops clocked simultaneously, so that the outputs change simultaneously when . s Counts binary s Single down/up count control line s Count enable control input s Ripple clock output for cascading s Asynchronously presettable with load control s Parallel outputs s Cascadable for n-bit applications s Average propagation delay 20 ns s Typical clock frequency 25 MHz s Typical powe.
Part Number74191
Description4 BIT SYNCHRONOUS UP/DOWN COUNTERS
ManufacturerSGS-THOMSON
Overview The M54/74HC190/191 are high speed CMOS 4-BIT SYNCHRONOUS UP/DOWN COUNTERS fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low p. load input overrides counting and loads the data present on the DATA inputs into the flip-flops, which makes it possible to use the circuits as programmable counters. A countenable input serves as the carry/borrow input in multi-stage counters. Control input, Down/Up, determines whether a circuit co.
Part Number74191
DescriptionSynchronous Up/Down 4-Bit Binary Counter
ManufacturerNational Semiconductor
Overview This circuit is a synchronous reversible up down counter The 191 is a 4-bit binary counter Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change . Y Y Y Y Y Y Y Single down up count control line Count enable control input Ripple clock output for cascading Asynchronously presettable with load control Parallel outputs Cascadable for n-bit applications Alternate Military Aerospace device (54191) is available Contact a National Semiconductor Sale.
Part Number74191
DescriptionSynchronous Up/Down Counters
ManufacturerTexas Instruments
Overview SN54190, SN54191, SN54LS190, SN54LS191, SN74190, SN74191, SN74LS190, SN74LS191 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL SDLS072 – DECEMBER 1972 – REVISED MARCH 1988 PRODUCTION DATA info. OWN/UP MODE CONTROL SDLS072
  – DECEMBER 1972
  – REVISED MARCH 1988 4
* POST OFFICE BOX 655303 DALLAS, TEXAS 75265 SN54190, SN54LS190, SN74190, SN74LS190 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL SDLS072
  – DECEMBER 1972
  – REVISED MARCH 1988
* POST OFFICE BOX 655303 DALLAS, TEXAS 75265 .