SNJ54ALS74AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54ALS74AJ is a military-grade dual D-type positive-edge-triggered flip-flop with preset and clear from Texas Instruments in a 14-pin ceramic DIP package. Operating at up to 25 MHz clock frequency, it is built on the ALS bipolar process for low power with -55°C to 125°C temperature rating. Suitable for military and aerospace sequential logic.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ALS74AJ 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
Key Features
- Dual independent D-type edge-triggered flip-flops with individual preset and clear
- Positive-edge clock triggering for deterministic state capture in sequential circuits
- 25 MHz maximum clock frequency in ALS bipolar process
- Military ceramic DIP-14 package hermetically sealed for -55°C to 125°C operation
- Low IOL of 8 mA output current suitable for standard TTL fan-out loads
Applications
The SNJ54ALS74AJ is used in frequency dividers, state machines, and pipeline registers within military avionics computers, missile guidance systems, and space payload electronics. Its dual flip-flop structure with independent preset and clear enables flexible synchronous design for defense-grade digital control logic.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ALS |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 25000000Hz |
| 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) | 4mA |
| Prop. Delay@Nom-Sup | 23ns |
| Propagation Delay (tpd) | 20ns |
| 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 | TTL |
| 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 | 75MHz |
| Package | Ceramic Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What type of flip-flop is the SNJ54ALS74AJ?
The SNJ54ALS74AJ contains two independent positive-edge-triggered D-type flip-flops, each with separate preset (active low) and clear (active low) inputs, allowing asynchronous initialization of each flip-flop independently.
What is the maximum clock frequency of the SNJ54ALS74AJ?
The device supports a maximum clock frequency of 25 MHz in the ALS bipolar process, enabling use in moderate-speed synchronous digital sequential circuits for military applications.
What temperature range does the SNJ54ALS74AJ cover?
The SNJ54ALS74AJ is rated for operation from -55°C to 125°C under military temperature specifications, ensuring reliable performance in avionics, spacecraft, and defense ground systems.
What makes the SNJ54ALS74AJ suitable for military applications?
Its ceramic hermetic DIP package, military temperature range of -55°C to 125°C, and ALS bipolar process providing reliable switching characteristics make it ideal for long-life, high-reliability defense and space applications.
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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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