SNJ54AS74AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54AS74AJ is a military-grade dual positive-edge-triggered D flip-flop with preset and clear from Texas Instruments, built with Advanced Schottky logic for 90 MHz operation in a 14-pin ceramic DIP. It delivers reliable single-bit data storage and toggling with preset and clear overrides, operating across the full military temperature range of -55°C to 125°C. Available for defense and aerospace procurement with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54AS74AJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $16.1300(MOQ 1)
- 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 SNJ54AS74AJ?
- Dual positive-edge-triggered D flip-flops with asynchronous preset and clear for immediate state override
- Advanced Schottky (AS) bipolar logic operating at up to 90 MHz for high-speed sequential logic designs
- Military-grade 14-pin ceramic DIP (JESD-30 R-GDIP-T14) rated from -55°C to 125°C
- 20 mA maximum output sink current (I_ol) for adequate fan-out in military bus-driving applications
- 50 pF load capacitance specification ensuring signal integrity in extreme-temperature board environments
What is SNJ54AS74AJ used for?
The SNJ54AS74AJ is designed for military, aerospace, and high-reliability industrial applications requiring fast D-type flip-flop data latching with synchronization and preset/clear control. Common uses include state machine registers, frequency dividers, clock synchronization circuits, and timing delay elements in avionics computers and radar signal processing systems.
What are the specifications of SNJ54AS74AJ?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | AS |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | D FLIP-FLOP |
| Max Frequency@Nom-Sup | 90000000Hz |
| Max I(ol) | 0.02A |
| 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) | 16mA |
| Prop. Delay@Nom-Sup | 10.5ns |
| Propagation Delay (tpd) | 10.5ns |
| 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 | 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 SNJ54AS74AJ datasheet?
SNJ54AS74AJ Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SNJ54AS74AJ?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the maximum operating frequency of the SNJ54AS74AJ?
The SNJ54AS74AJ operates at a maximum clock frequency of 90 MHz, enabled by Texas Instruments' Advanced Schottky (AS) bipolar process. This high-speed performance is suitable for fast sequential logic, frequency division, and timing circuits in military and aerospace computing systems requiring reliable edge-triggered data capture at high clock rates.
What control inputs does the SNJ54AS74AJ provide beyond clock and data?
The SNJ54AS74AJ features asynchronous active-low preset (PRE) and clear (CLR) inputs on each of its two flip-flops. These override the clock signal, allowing immediate forced setting or resetting of the flip-flop output regardless of clock state. This is essential for initialization sequences and fault-recovery routines in safety-critical embedded control applications.
What package does the SNJ54AS74AJ come in and what is the operating temperature range?
The SNJ54AS74AJ is housed in a 14-pin ceramic dual-in-line package (CDIP), JESD-30 code R-GDIP-T14, which provides hermetic sealing for use in extreme environmental conditions. It operates from -55°C to 125°C, meeting the full military temperature range required for avionics, defense electronics, and harsh industrial system qualification.
What is the output drive capability of the SNJ54AS74AJ?
The SNJ54AS74AJ can sink a maximum output current (I_ol) of 20 mA per pin, sufficient to drive standard TTL loads and moderate resistive loads directly. The 50 pF load capacitance specification also ensures proper signal integrity when driving PCB traces on multi-layer military circuit boards with typical bus load capacitances.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
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| 1+ | $21.2186 | $21.22 |
| 53+ | $18.0358 | $955.90 |
| 112+ | $16.9749 | $1901.19 |
| 10000+ | $16.1300 | $161300.00 |
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