SNJ54ALS138AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SNJ54ALS138AJ is a 3-line to 8-line decoder and demultiplexer from Texas Instruments, designed specifically for high-speed memory decoding and data transmission systems. It features two active-low enable inputs and one active-high enable input, with Schottky-clamped transistors in the ALS family for fast operation. Housed in a 16-pin ceramic DIP package, it supports military-grade -55°C to 125°C temperature range.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SNJ54ALS138AJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $17.9025(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
- 3-to-8 line decoder/demultiplexer with fully decoded outputs for memory address decoding
- 2 active-low and 1 active-high enable inputs for flexible circuit design
- Advanced Low-power Schottky (ALS) technology for high-speed, low-power operation
- Military-grade ceramic DIP-16 package rated for -55°C to 125°C
- Output sink current of 4 mA per channel for driving logic loads
- Propagation delay of approximately 5 ns typical for fast memory decoding
Applications
The SNJ54ALS138AJ is primarily used in military and aerospace systems for high-speed memory address decoding, chip select generation, and data demultiplexing. It is also found in industrial control systems, programmable logic controllers, and high-reliability computing platforms requiring guaranteed performance over wide temperature ranges.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | 2 ACTIVE-LOW AND 1 ACTIVE-HIGH ENABLE INPUT, SCHOTTKY-CLAMPED FOR HIGH PERFORMANCE |
| Family | ALS |
| Input Conditioning | STANDARD |
| JESD-30 Code | R-GDIP-T16 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | 3-LINE TO 8-LINE DECODER |
| Max I(ol) | 0.004A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| 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) | 10mA |
| Prop. Delay@Nom-Sup | 22ns |
| Propagation Delay (tpd) | 28ns |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the function of the SNJ54ALS138AJ and where is it used?
The SNJ54ALS138AJ is a 3-to-8 line decoder and demultiplexer. It takes a 3-bit binary input and activates one of eight output lines, making it ideal for memory address decoding, chip select generation, and data routing in high-speed digital systems and memory subsystems.
What enable inputs does the SNJ54ALS138AJ have?
The SNJ54ALS138AJ has three enable inputs: two active-low inputs (G2A and G2B) and one active-high input (G1). All three must be in their active state simultaneously to enable the decoder outputs, providing flexible gating capability for complex logic designs.
What is the operating temperature range of the SNJ54ALS138AJ?
As a military-grade SNJ-prefix device, the SNJ54ALS138AJ is rated for the full military temperature range of -55°C to 125°C and is qualified to MIL-PRF-38510 standards, making it suitable for defense and aerospace applications.
Is the SNJ54ALS138AJ available in a lead-free package?
Yes, the SNJ54ALS138AJ carries JESD-609 code e0, indicating a lead-free termination finish. The 16-pin ceramic DIP package (JEDEC R-GDIP-T16) provides excellent hermeticity and thermal stability for mil-spec environments.
Related Guides
TPS61291DRVR Selection Guide: Low-Quiescent-Current Boost Converters for IoT and Wearables
How to select the TPS61291DRVR and low-Iq boost converters for IoT, wearables, and coin-cell designs. Compares specs, packages, and alternatives from TI, ADI, and Microchip.
May 13, 2026
TMS5704357BZWTQQ1 Selection Guide: Choosing the Right TMS570 Automotive MCU Variant
Compare TMS570 automotive MCU variants by ASIL level, flash, package, and peripherals. Find the right fit from entry-level LQFP to the ASIL-D TMS5704357BZWTQQ1.
May 13, 2026
TI Hercules TMS5704357BZWTQQ1 Design Guide for Automotive ASIL-D and Industrial Functional Safety
Complete integration guide for the TI Hercules TMS5704357BZWTQQ1 dual-core lockstep Cortex-R5F MCU: lockstep CPU, ECC RAM, FlexRay/CAN-FD, and ASIL-D pitfalls.
May 12, 2026
PTN78000WAH Selection Guide: Choosing the Right 1.5 A 36 V Step-Down Power Module
Compare PTN78000WAH against PTN78000WAS, PTN78060WAH, and other 1.5A 36V step-down modules. Covers package, current rating, efficiency, and drop-in replaceability.
May 12, 2026
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
LM3911N
Dual-In-Line Packages
Integrated Circuit
CC430F5143IRGZT
Quad Flat No-Lead
Integrated Circuit
CD54HC00F
Ceramic Dual-In-Line Packages
Integrated Circuit
CD54HCT86F
Ceramic Dual-In-Line Packages
Integrated Circuit
CDCL1810RGZR
Quad Flat No-Lead
Integrated Circuit
CDC2351DBR
Small Outline Packages
Integrated Circuit
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $21.7733 | $21.77 |
| 5+ | $19.3540 | $96.77 |
| 14+ | $17.9025 | $250.63 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”