SN74LS112ANS Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74LS112ANS is a dual JK negative-edge-triggered flip-flop IC by Texas Instruments in a 16-DIP (7.62mm) package. Key specs: 2-element, 1-bit per element, LS TTL logic family with preset and clear inputs. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74LS112ANS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual JK flip-flop with independent preset and clear inputs for flexible state initialization without clock dependency
- Negative edge-triggered clocking for precise synchronous state capture on falling clock transitions in digital sequential circuits
- LS TTL logic family balancing speed and low power consumption for general-purpose 5 V logic system designs
- 16-pin DIP through-hole package (0.300" / 7.62 mm wide) for straightforward breadboard and PCB prototype assembly
Applications
The SN74LS112ANS is widely used in synchronous sequential logic designs including binary counters, shift registers, and state machines where negative edge-triggered clocking is required. Its independent preset and clear inputs allow asynchronous initialization, making it valuable in controller and timer circuits for industrial automation and embedded systems. Legacy digital logic boards and educational electronics labs also rely on this classic JK flip-flop for teaching and prototyping fundamental flip-flop operation.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74LS112ANS:
J-K Flip-Flop, LS Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO16
J-K Flip-Flop, LS Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO14
J-K Flip-Flop, LS Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO14
Frequently Asked Questions
What type of flip-flop is the SN74LS112ANS and how many elements does it contain?
The SN74LS112ANS contains two independent JK flip-flop elements, each storing 1 bit. Both are negative edge-triggered, capturing the J and K input states on the falling edge of the clock for reliable synchronous operation in sequential logic circuits.
Does the SN74LS112ANS have preset and clear inputs?
Yes, each flip-flop element includes asynchronous preset and clear (reset) inputs that override the clock, allowing the Q output to be forced high or low independently. This enables immediate initialization of circuit state without waiting for a clock edge, which is essential in power-up sequencing and reset logic.
What package does the SN74LS112ANS use and what are its dimensions?
The SN74LS112ANS is housed in a 16-pin DIP (Dual In-Line Package) with a 0.300 inch (7.62 mm) row spacing. The through-hole package is compatible with standard breadboards and common PCB footprints, making it straightforward to prototype and assemble.
What are typical applications for the SN74LS112ANS?
Typical applications include binary ripple counters, frequency dividers, serial shift registers, and Moore/Mealy state machines. The device is also used in digital clock circuits, data synchronizers, and legacy TTL-based control systems operating at 5 V logic levels.
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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.
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