SNJ54ALS109AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54ALS109AJ is a dual J-K positive-edge-triggered flip-flop with clear and preset, housed in a 16-pin ceramic DIP package rated for -55°C to 125°C military temperature range. It features two independent J-K flip-flop cells with asynchronous active-low preset and clear inputs, operating at up to 30 MHz clock frequency with ALS-family low-power Schottky logic. Available from Texas Instruments with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ALS109AJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3532(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual J-K positive-edge-triggered flip-flops with independent asynchronous active-low preset (PRE) and clear (CLR) inputs for flexible initialization
- Military-grade ceramic DIP-16 (CDIP) package rated for -55°C to 125°C wide temperature range, suitable for harsh aerospace and defense environments
- ALS (Advanced Low-power Schottky) technology delivers up to 30 MHz max operating frequency with low power consumption and high noise immunity
- 50 pF load capacitance rating and 0.4 mA max output low current ensure reliable drive capability in bus-oriented digital systems
Applications
The SNJ54ALS109AJ is designed for military, aerospace, and industrial control systems requiring reliable state storage and sequencing across extreme temperature conditions. Its dual J-K flip-flop topology with asynchronous preset and clear makes it ideal for counters, shift registers, and finite-state-machine implementations in rugged embedded hardware. It is also well suited for clock synchronization and data latching in high-reliability digital logic boards operating in avionics, radar, and defense electronics.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ALS |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | J-KBAR FLIP-FLOP |
| Max Frequency@Nom-Sup | 30000000Hz |
| Max I(ol) | 0.0004A |
| Number of Bits | 2 |
| Number of Functions | 2 |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | CERAMIC, GLASS-SEALED |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 4mA |
| Prop. Delay@Nom-Sup | 15ns |
| Propagation Delay (tpd) | 20ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 | 34MHz |
| 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 is the maximum operating frequency of the SNJ54ALS109AJ?
The SNJ54ALS109AJ supports a maximum operating frequency of 30 MHz (30,000,000 Hz) at nominal supply voltage, as specified by Texas Instruments for the ALS logic family. This makes it suitable for moderate-speed clocked digital designs in military-grade applications.
What temperature range does the SNJ54ALS109AJ support?
The SNJ54ALS109AJ is rated for a military temperature range of -55°C to 125°C, making it appropriate for aerospace, defense, and other harsh-environment applications where commercial or industrial grade components would fail.
What package does the SNJ54ALS109AJ use and how many pins does it have?
It comes in a 16-pin ceramic dual-in-line package (CDIP), identified by JESD-30 code R-GDIP-T16. The ceramic package provides superior hermetic sealing and thermal performance compared to plastic DIP packages, which is critical for long-term reliability in military systems.
Are there RoHS-compliant or lead-free versions of the SNJ54ALS109AJ available?
The SNJ54ALS109AJ carries a JESD-609 code of e0 and a Pb-free code of Yes, indicating it is available in a lead-free configuration. However, for military applications requiring specific finish standards, always verify the exact ordering suffix with Texas Instruments or your distributor.
What are common applications for dual J-K flip-flops like the SNJ54ALS109AJ?
Dual J-K flip-flops with preset and clear such as the SNJ54ALS109AJ are commonly used in binary counters, shift registers, frequency dividers, state machines, and synchronization circuits. The independent asynchronous preset and clear inputs allow precise initialization of each flip-flop, making them versatile building blocks in complex digital logic designs.
What logic family does the SNJ54ALS109AJ belong to and what does that mean for system design?
The SNJ54ALS109AJ belongs to the ALS (Advanced Low-power Schottky) logic family, which offers a balanced combination of speed and low power consumption compared to standard TTL. ALS devices are directly compatible with other TTL family devices at 5 V supply, simplifying integration into existing military and industrial digital systems without level-shifting circuitry.
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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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