SN74F112N-NG Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
SN74F112N is a dual JK negative-edge-triggered flip-flop IC from Texas Instruments in the Fast (F) logic family, operating from 0°C to 70°C. It features individual J, K, clock, set, and clear inputs per flip-flop with 5 V TTL-compatible operation in a 16-pin DIP package. Available from stock worldwide for legacy digital design and sequential logic applications.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74F112N-NG Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual JK negative-edge-triggered flip-flops with individual preset and clear inputs for flexible sequential logic control
- Fast (F) TTL logic family with propagation delays under 10 ns and 5 V supply operation for high-speed register and counter designs
- 16-pin DIP package for breadboard-friendly prototyping and through-hole PCB assembly in legacy and industrial systems
Applications
The SN74F112N is used in sequential digital logic designs such as shift registers, frequency dividers, and state machines that require reliable JK flip-flop functionality with individual preset and clear controls. Its Fast TTL family performance with sub-10 ns propagation delay makes it suitable for clock synchronization circuits and edge-detection stages in data acquisition systems. The through-hole 16-pin DIP package is particularly valued in industrial control boards and legacy system repairs operating from 0°C to 70°C.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74F112N-NG:
J-K Flip-Flop, F/FAST Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO16
J-K Flip-Flop, F/FAST Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDIP16
J-K Flip-Flop, F/FAST Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO16
J-K Flip-Flop, F/FAST Series, 2-Func, Negative Edge Triggered, 2-Bit, Complementary Output, TTL, PDSO16
Frequently Asked Questions
What logic function does the SN74F112N-NG implement and how many independent flip-flops does it contain?
The SN74F112N-NG contains 2 independent JK negative-edge-triggered flip-flops. Each flip-flop has separate J, K, clock, active-low preset, and active-low clear inputs, allowing full sequential logic control. This dual configuration reduces chip count in designs requiring two JK flip-flop stages, such as 2-bit counters or serial data registers.
What is the operating temperature range and supply voltage for the SN74F112N-NG?
The SN74F112N-NG is characterized for operation from 0°C to 70°C, making it suitable for commercial temperature range applications. It operates from a 5 V TTL supply rail, consistent with the Fast (F) logic family standard. Designers should ensure the supply stays within the 4.5 V to 5.5 V tolerance band for reliable switching performance.
When is the SN74F112N-NG a better choice than a CMOS flip-flop such as the CD74HC112 for high-speed clocking?
The SN74F112N-NG uses Fast TTL technology with typical propagation delays of approximately 5 ns to 8 ns, which is faster than standard HC CMOS parts at 5 V under heavy loads. When driving multiple TTL inputs or bus lines with significant capacitance at clock rates above 50 MHz, the higher drive current of F-family outputs maintains signal integrity better than CMOS equivalents without bus buffers.
How does the 16-pin DIP package of the SN74F112N-NG benefit legacy system maintenance and prototyping?
The 16-pin DIP package with 2.54 mm (100 mil) lead pitch is directly insertable into standard breadboards and IC sockets, enabling quick prototyping and in-field replacement without soldering. For legacy industrial or military equipment originally designed with through-hole components, the DIP format ensures mechanical and electrical compatibility without PCB redesign.
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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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