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
What are the key features of SN74F112N-NG?
- 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
What is SN74F112N-NG used for?
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) |
Where can I find the SN74F112N-NG datasheet?
SN74F112N-NG Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74F112N-NG?
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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