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SN74LS691N

SN74LS691N

SN74LS691N

Texas Instruments

5V TTL DUAL Counters & Dividers 20 Pins POSITIVE EDGE PDIP

SOT-23

SN74LS691N Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Package / Case PDIP
Surface MountNO
Pbfree Code no
Number of Terminations 20
Additional FeatureREGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS
HTS Code8542.39.00.01
Subcategory Counters
Technology TTL
Terminal Position DUAL
Terminal FormTHROUGH-HOLE
Peak Reflow Temperature (Cel) NOT SPECIFIED
Number of Functions 1
Supply Voltage 5V
Terminal Pitch2.54mm
Reach Compliance Code not_compliant
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Pin Count20
Qualification StatusNot Qualified
Operating Temperature (Max) 70°C
Supply Voltage-Max (Vsup) 5.25V
Temperature GradeCOMMERCIAL
Supply Voltage-Min (Vsup) 4.75V
Load Capacitance45pF
Number of Bits 4
Family LS
Output Characteristics 3-STATE
Logic IC Type BINARY COUNTER
Trigger Type POSITIVE EDGE
Propagation Delay (tpd) 25 ns
Power Supply Current-Max (ICC) 70mA
Count Direction UP
Load/Preset Input YES
Mode of OperationSYNCHRONOUS
Length 24.325mm
Height Seated (Max) 5.08mm
Width 7.62mm
RoHS StatusNon-RoHS Compliant
Lead Free Contains Lead
In-Stock:2939 items

SN74LS691N Product Details

SN74LS691N Overview


The device is packaged in the PDIPtype. This configuration uses 20terminations. By supplying 5Vwith a voltage of 5V , the device can be operated in a completely flexible manner. All component pins are equal to 20. In this case, it belongs to the family of [0]. As far as the device is concerned, there are 4bits of information. Based on the Pbfree code, the result may be no. It is important to note that REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTSare really important features of this electronic device. In this device, the temperature grade is COMMERCIAL. As low as 4.75V Vsup is the minimum supply voltage. It is possible to provide a voltage up to 5.25V (Vsup). Countersis the family name of the electronic part. BINARY COUNTER indicates the type of logic IC it uses. A temperature of 70°Cis usually set as the maximum operating temperature.

SN74LS691N Features


Embedded in the PDIP package
REGISTER/COUNTER OUTPUT SELECT; TCO OUTPUT; REGISTERED OUTPUTS
BINARY COUNTER as logic IC type


SN74LS691N Applications


There are a lot of Texas Instruments
SN74LS691N Counters & Dividers applications.


  • Analog multiplexing and demultiplexing
  • Digital multiplexing and demultiplexing
  • Signal gating
  • Frequency dividing circuits
  • Time delay circuits
  • Communications Digital Frequency Synthesizers;
  • VHF, UHF, FM, AM, etc.
  • Fixed or Programmable Frequency Division
  • Time Out Timer for Consumer-Application Industrial Controls
  • Timing applications

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