SN74LS697

ACTIVE

Synchronous 4-Bit Up/Down Binary Counters With Output Registers And Multiplexed 3-State Outputs

Product details

Function Counter Bits (#) 4 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns) Operating temperature range (°C) 0 to 70 Rating Catalog
Function Counter Bits (#) 4 Technology family LS Supply voltage (min) (V) 4.75 Supply voltage (max) (V) 5.25 Input type Bipolar Output type 3-State Features High speed (tpd 10-50ns) Operating temperature range (°C) 0 to 70 Rating Catalog
PDIP (N) 20 228.702 mm² 24.33 x 9.4 SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • 4-Bit Counters/Registers
  • Multiplexed Outputs for Counter or Latched Data
  • 3-State Outputs Drive Bus Lines Directly
  • 'LS696 … Decade Counter, Direct Clear'LS697…Binary Counter, Direct Clear'LS699…Binary Counter, Synchronous Clear

 

  • 4-Bit Counters/Registers
  • Multiplexed Outputs for Counter or Latched Data
  • 3-State Outputs Drive Bus Lines Directly
  • 'LS696 … Decade Counter, Direct Clear'LS697…Binary Counter, Direct Clear'LS699…Binary Counter, Synchronous Clear

 

These low-power Schottky LSI devices incorporate synchronous up/down counters, four-bit D-type registers, and quadruple two-line to one-line multiplexers with three state outputs in a single 20-pin package. The up/down counters are programmable from the data inputs and feature enable P\ and enable T\ and a ripple-carry output for easy expansion. The register/counter select input R/C\, selects the counter when low and the register when high for the three-state outputs, QA, QB, QC, and QD. These outputs are rated at 12 and 24 milliamperes (54LS/74LS) for good bus driving performance.

Both the counter CCK and register clock RCK are positive-edge triggered. The counter clear CCLR\ is active low and is asynchronous on the 'LS696 and 'LS697, synchronous on the 'LS699. Loading of the counter is accomplished when LOAD\ is taken low and a positive transition occurs on the counter clock CCK.

Expansion is easily accomplished by connecting RCO\ of the first stage to ENT\ of the second stage, etc. All ENP\ inputs can be tied common and used as a master enable or disable control.

 

These low-power Schottky LSI devices incorporate synchronous up/down counters, four-bit D-type registers, and quadruple two-line to one-line multiplexers with three state outputs in a single 20-pin package. The up/down counters are programmable from the data inputs and feature enable P\ and enable T\ and a ripple-carry output for easy expansion. The register/counter select input R/C\, selects the counter when low and the register when high for the three-state outputs, QA, QB, QC, and QD. These outputs are rated at 12 and 24 milliamperes (54LS/74LS) for good bus driving performance.

Both the counter CCK and register clock RCK are positive-edge triggered. The counter clear CCLR\ is active low and is asynchronous on the 'LS696 and 'LS697, synchronous on the 'LS699. Loading of the counter is accomplished when LOAD\ is taken low and a positive transition occurs on the counter clock CCK.

Expansion is easily accomplished by connecting RCO\ of the first stage to ENT\ of the second stage, etc. All ENP\ inputs can be tied common and used as a master enable or disable control.

 

Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
CD74ACT161 ACTIVE Synchronous Presettable Binary Counters with Asynchronous Reset Shorter average propagation delay (8ns), higher average drive strength (24mA)
Similar functionality to the compared device
SN74HC393 ACTIVE Dual 4-bit binary counters Voltage range (2V to 6V), average drive strength (8mA), average propagation delay (20ns)
SN74LS161A ACTIVE Synchronous 4-Bit Binary Counters Voltage range (4.5V to 5.5V), average drive strength (8mA), average propagation delay (12ns)

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 10
Type Title Date
* Data sheet Synchronous Up/Down Counters With Output Reg. And Multiplexed 3-State Outputs datasheet 01 Mar 1988
Selection guide Logic Guide (Rev. AB) 12 Jun 2017
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Application note Designing With Logic (Rev. C) 01 Jun 1997
Application note Designing with the SN54/74LS123 (Rev. A) 01 Mar 1997
Application note Input and Output Characteristics of Digital Integrated Circuits 01 Oct 1996
Application note Live Insertion 01 Oct 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
PDIP (N) 20 Ultra Librarian
SOIC (DW) 20 Ultra Librarian

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos