SNJ54AHC74J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
SNJ54AHC74J is a dual positive-edge-triggered D-type flip-flop from Texas Instruments in a 14-pin ceramic DIP package. Features complementary Q and Q-bar outputs, asynchronous clear and preset, and 50 pF load capacitance rating. From $8 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AHC74J Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SNJ54AHC74J?
- Military-grade 54-series ceramic DIP package rated for -55°C to +125°C operating temperature
- Dual D flip-flops with asynchronous active-low clear and preset for flexible initialization
- Complementary Q and Q-bar outputs enabling both true and inverted data paths
- AHC logic family with 2 V to 5.5 V supply range and high-speed CMOS performance
What is SNJ54AHC74J used for?
SNJ54AHC74J is used in military, aerospace, and high-reliability industrial systems requiring dual D flip-flop register storage with asynchronous reset across a -55°C to +125°C temperature range. Its ceramic DIP package and 54-series qualification make it suitable for avionics data buses, radar signal processors, and rugged embedded controllers where commercial plastic packages cannot meet environmental specifications.
What are the specifications of SNJ54AHC74J?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AHC/VHC/H/U/V |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max I(ol) | 0.008A |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP14,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 10.5ns |
| Propagation Delay (tpd) | 17.5ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Trigger Type | POSITIVE EDGE |
| fmax-Min | 100MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the SNJ54AHC74J datasheet?
SNJ54AHC74J Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SNJ54AHC74J?
Compatible alternatives and drop-in replacements for SNJ54AHC74J:
D Flip-Flop, AHCT/VHCT/VT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, CDIP14
Frequently Asked Questions
What is the operating temperature range of SNJ54AHC74J for military system designs?
SNJ54AHC74J is rated for an operating temperature range of -55°C to +125°C in the 54-series military grade, housed in a hermetic 14-pin ceramic DIP package. This wide range makes it suitable for avionics, defense, and space-grade circuit boards where commercial temperature-grade ICs would fail.
What supply voltage range does SNJ54AHC74J support in AHC logic designs?
SNJ54AHC74J operates from a VCC supply of 2 V to 5.5 V in the AHC logic family, providing compatibility with both 3.3 V and 5 V system power rails. Output load capacitance is rated at 50 pF, and maximum output low current is 8 mA for standard AHC drive strength.
How do the asynchronous clear and preset inputs on SNJ54AHC74J benefit state-machine initialization?
The active-low asynchronous clear and preset inputs allow immediate forced reset or set of each flip-flop independent of the clock edge, ensuring deterministic startup states in state machines and register files. This removes the need for extra initialization clock cycles, which is critical in 2-flip-flop dual configurations clocked at high frequencies.
When is SNJ54AHC74J the appropriate choice over a commercial-grade SN74AHC74 flip-flop?
SNJ54AHC74J is selected when the application requires military temperature rating of -55°C to +125°C and a hermetic ceramic 14-pin DIP package that meets MIL-STD qualification. For non-military PCBs operating from 0°C to 70°C, the commercial SN74AHC74 in plastic SOIC or TSSOP packages is more cost-effective and widely available.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit