SN74LS73ANS Texas Instruments In Stock
SN74LS73ANS is a dual J-K flip-flop with clear by Texas Instruments, operating on a 5 V supply with TTL-compatible inputs. Key specs: 2 independent J-K flip-flops, active-low clear, typical propagation delay 20 ns. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual J-K flip-flops with independent clock and clear inputs for versatile sequential logic designs
- Active-low asynchronous clear allows instant state reset without waiting for a clock edge
- TTL-compatible LS logic family provides low power Schottky performance with high noise immunity
- SOIC package (NS suffix) enables compact surface-mount PCB layouts with reliable automated assembly
- Wide operating temperature range from 0°C to 70°C suitable for commercial and industrial applications
Applications
The SN74LS73ANS is commonly used in digital counters, shift registers, and state machine designs where dual J-K flip-flop functionality is required. It is well-suited for data storage, frequency division, and synchronization circuits in consumer electronics, industrial controllers, and legacy digital logic boards. The device's TTL LS family compatibility makes it a drop-in replacement in existing 74LS logic designs requiring flip-flop elements.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What logic family does the SN74LS73ANS belong to, and what is its supply voltage?
The SN74LS73ANS is part of the 74LS (Low-power Schottky TTL) logic family and operates from a 5 V supply voltage. It offers a good balance of speed and power consumption typical of the LS family.
What is the function of the active-low clear pin on the SN74LS73ANS?
The active-low clear (CLR) pin asynchronously resets both Q outputs to logic low regardless of clock or J/K input states. This allows immediate reset of the flip-flop state at any time without waiting for a clock edge, which is useful in system initialization and error-recovery circuits.
What package does the SN74LS73ANS come in?
The SN74LS73ANS is available in a 14-pin Small Outline IC (SOIC) surface-mount package (NS suffix), which is compact, easy to solder with automated equipment, and suitable for modern PCB designs requiring space-efficient components.
What are typical applications for the SN74LS73ANS?
Typical applications include digital counters, frequency dividers, shift registers, control logic state machines, and data synchronization circuits. The dual J-K topology makes it flexible for both toggle and gated latch configurations in TTL-based digital systems.
Is the SN74LS73ANS compatible with other 74-series logic devices?
Yes, as a 74LS-series component it is compatible with other TTL and CMOS logic families such as 74HCT, provided voltage levels are correctly matched. It can interface directly with other 74LS, 74S, and 74F devices operating from a 5 V rail.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”