SNJ54ALS139J Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54ALS139J is a dual 2-to-4 line decoder/demultiplexer from Texas Instruments in the ALS logic family, providing two independent 2-line to 4-line decoding functions with active-low outputs and individual enable pins. It handles a 50pF load capacitance and is housed in a 16-pin ceramic DIP package for high-reliability address decoding in military-grade digital systems.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ALS139J Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2000(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 SNJ54ALS139J?
- Dual independent 2-to-4 line decoder/demultiplexer in one package
- Active-low outputs with individual enable control per decoder section
- ALS logic family for low-power Schottky TTL performance
- 50pF load capacitance for standard bus interface compatibility
- 16-pin ceramic DIP (CDIP) package for hermetic high-reliability use
- Military 54-series qualification for extended temperature operation
What is SNJ54ALS139J used for?
The SNJ54ALS139J is used in memory address decoding, chip select generation, and data routing in military-grade and high-reliability digital systems. It is commonly deployed in processor systems for selecting among multiple peripheral devices, in programmable logic designs for decoding control signals, and in industrial equipment requiring reliable 2-to-4 binary decoding over extended temperature ranges.
What are the specifications of SNJ54ALS139J?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ALS |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | 2-LINE TO 4-LINE DECODER |
| Max I(ol) | 0.004A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Output Characteristics | OPEN-COLLECTOR |
| Output Polarity | INVERTED |
| 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) | 13mA |
| Prop. Delay@Nom-Sup | 14ns |
| Propagation Delay (tpd) | 17ns |
| 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 |
| 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 SNJ54ALS139J datasheet?
SNJ54ALS139J Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SNJ54ALS139J?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many decoders does the SNJ54ALS139J contain?
The SNJ54ALS139J contains two independent 2-to-4 line decoders, each with its own 2-bit address input, 4-bit active-low output, and individual active-low enable input. The dual configuration allows two separate decoding functions to be implemented in a single 16-pin package, reducing component count in address decoding and chip select generation circuits.
What logic family does the SNJ54ALS139J belong to?
The SNJ54ALS139J belongs to the ALS (Advanced Low-Power Schottky TTL) logic family. ALS devices provide lower power consumption than standard LS-TTL while maintaining comparable switching speed, making them well suited for battery-backed systems and power-sensitive digital designs where TTL-compatible logic is required.
What is the military 54-series designation on the SNJ54ALS139J?
The '54' prefix designates the SNJ54ALS139J as a military-grade device, meaning it is tested and qualified to operate over the full military temperature range of -55°C to +125°C. The 54-series also undergoes additional screening for vibration, shock, and environmental stress, making it suitable for defense avionics, radar systems, and space-grade electronics.
What package does the SNJ54ALS139J use?
The SNJ54ALS139J is housed in a 16-pin ceramic DIP (CDIP) package designated by JESD-30 code R-GDIP-T16. The hermetically sealed ceramic package provides excellent moisture resistance and mechanical ruggedness for use in military and aerospace applications where long-term reliability in harsh environments is required.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $6.3000 | $6.30 |
| 3+ | $4.2000 | $12.60 |
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