SNJ54AHCT74J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54AHCT74J is a military-grade dual D-type flip-flop with TTL-compatible inputs in a ceramic DIP-14 package, operating up to 65MHz clock frequency. It features AHCT logic for 5V supply operation with TTL input thresholds, 50pF load capacitance, and 8mA output current, suitable for clocking and synchronization circuits in defense and aerospace applications.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AHCT74J 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 SNJ54AHCT74J?
- Dual D-type flip-flop for sequential logic and data storage
- TTL-voltage compatible inputs enabling easy TTL-to-CMOS interfacing
- 65MHz maximum clock frequency for high-speed digital circuits
- Military-grade ceramic DIP package for harsh environment reliability
- AHCT logic family operating at 5V with low power consumption
- 50pF load capacitance support for reliable bus driving
What is SNJ54AHCT74J used for?
The SNJ54AHCT74J is used in military, aerospace, and defense electronic systems where reliable sequential logic, data synchronization, and register functions are required under extreme environmental conditions. It is commonly deployed in timing circuits, frequency dividers, shift registers, and state machine implementations in avionics computers, radar signal processors, and secure communications equipment.
What are the specifications of SNJ54AHCT74J?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AHCT/VHCT/VT |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 65000000Hz |
| Max I(ol) | 0.008A |
| Number of Bits | 1 |
| 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 | 10ns |
| Propagation Delay (tpd) | 10ns |
| Qualification Status | Not Qualified |
| Screening Level | MIL-PRF-38535 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| 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 | 70MHz |
| 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 SNJ54AHCT74J datasheet?
SNJ54AHCT74J Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SNJ54AHCT74J?
Compatible alternatives and drop-in replacements for SNJ54AHCT74J:
Flip-Flop, AHCT/VHCT/VT Series, 2-Func, Positive Edge Triggered, 1-Bit, Complementary Output, CMOS, PDIP14
D Flip-Flop, AHC/VHC/H/U/V Series, 2-Func, Positive Edge Triggered, Complementary Output, CMOS, CDIP14
Frequently Asked Questions
What logic family does the SNJ54AHCT74J belong to and what is its supply voltage?
The SNJ54AHCT74J belongs to the AHCT (Advanced High-speed CMOS with TTL input thresholds) logic family and operates at a 5V supply voltage. The TTL-compatible input thresholds allow it to be directly driven by TTL logic sources without additional level-shifting circuitry.
What is the maximum operating frequency of the SNJ54AHCT74J?
The SNJ54AHCT74J supports a maximum clock frequency of 65MHz at nominal supply voltage, enabling its use in high-speed digital systems requiring reliable edge-triggered data capture and storage at tens of megahertz clock rates.
Why is the SNJ54AHCT74J suitable for military applications?
The SNJ54AHCT74J is packaged in a ceramic dual-in-line (CDIP) package and meets military-grade qualification standards, providing excellent reliability under wide temperature extremes, radiation exposure, mechanical shock, and vibration typical of military avionics, ground vehicles, and space applications.
What are typical uses of the SNJ54AHCT74J?
Typical uses include data registers, frequency dividers, clock synchronizers, pipeline stages, and state machine elements in military and aerospace digital circuits. Its dual flip-flop structure allows two independent sequential storage elements in a single 14-pin package, reducing component count in high-reliability designs.
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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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