Datasheets
SN74LS197FN by:
Texas Instruments

Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, PQCC20

Part Details for SN74LS197FN by Texas Instruments

Results Overview of SN74LS197FN by Texas Instruments

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Applications Education and Research Space Technology Aerospace and Defense Automotive

SN74LS197FN Information

SN74LS197FN by Texas Instruments is a Counter.
Counters are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Price & Stock for SN74LS197FN

Part # Distributor Description Stock Price Buy
Vyrian Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, PQCC20 4157
RFQ

US Tariff Estimator: SN74LS197FN by Texas Instruments

Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.

SN74LS197FN
Texas Instruments
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SN74LS197FN Part Data Attributes

SN74LS197FN Texas Instruments
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SN74LS197FN Texas Instruments Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, PQCC20
Part Life Cycle Code Obsolete
Package Description Lcc-20
HTS Code 8542.39.00.60
Additional Feature Divide By 2 And Divide By 8 Functions
Count Direction Up
Family Ls
JESD-30 Code S-PQCC-J20
Length 8.9662 Mm
Load Capacitance (CL) 15 Pf
Load/Preset Input Yes
Logic IC Type Binary Counter
Max Frequency@Nom-Sup 30000000 Hz
Max I(ol) 0.008 A
Mode of Operation Asynchronous
Number of Bits 3
Number of Functions 2
Number of Terminals 20
Operating Temperature-Max 70 °C
Operating Temperature-Min
Package Body Material Plastic/Epoxy
Package Code QCCJ
Package Equivalence Code LDCC20,.4SQ
Package Shape Square
Package Style Chip Carrier
Peak Reflow Temperature (Cel) Not Specified
Power Supply Current-Max (ICC) 27 Ma
Prop. Delay@Nom-Sup 95 Ns
Propagation Delay (tpd) 95 Ns
Qualification Status Not Qualified
Seated Height-Max 4.57 Mm
Supply Voltage-Max (Vsup) 5.25 V
Supply Voltage-Min (Vsup) 4.75 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount Yes
Technology Ttl
Temperature Grade Commercial
Terminal Form J Bend
Terminal Pitch 1.27 Mm
Terminal Position Quad
Time@Peak Reflow Temperature-Max (s) Not Specified
Trigger Type Negative Edge
Width 8.9662 Mm
fmax-Min 30 Mhz

Alternate Parts for SN74LS197FN

This table gives cross-reference parts and alternative options found for SN74LS197FN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74LS197FN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
SN74LS197FN3 Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PQCC20 SN74LS197FN vs SN74LS197FN3
SN74LS197FN3 Rochester Electronics LLC Check for Price Binary Counter SN74LS197FN vs SN74LS197FN3
Part Number Manufacturer Composite Price Description Compare
SNJ54LS197J-00 Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, CDIP14 SN74LS197FN vs SNJ54LS197J-00
SN74LS197N1 Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PDIP14 SN74LS197FN vs SN74LS197N1
DM74LS197MX Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, PDSO14 SN74LS197FN vs DM74LS197MX
SN74LS197FN3 Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Positive Edge Triggered, 4-Bit, Up Direction, TTL, PQCC20 SN74LS197FN vs SN74LS197FN3
7601501CA Defense Logistics Agency Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, TTL, CDIP14 SN74LS197FN vs 7601501CA
SN74LS197NP1 Rochester Electronics LLC Check for Price Binary Counter SN74LS197FN vs SN74LS197NP1
SN74LS197N Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 4-Bit, Up Direction, TTL, PDIP14 SN74LS197FN vs SN74LS197N
74LS197A Signetics Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, PDIP14 SN74LS197FN vs 74LS197A
SN54LS197FK Texas Instruments Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, CQCC20 SN74LS197FN vs SN54LS197FK
7601501CX Defense Logistics Agency Check for Price Binary Counter, LS Series, Asynchronous, Negative Edge Triggered, 3-Bit, Up Direction, TTL, CDIP14 SN74LS197FN vs 7601501CX
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