SN54ALS138AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SN54ALS138AJ is a 3-to-8 line decoder and demultiplexer from Texas Instruments in the ALS family, featuring two active-low and one active-high enable inputs with Schottky-clamped outputs for high performance. It is housed in a 16-pin ceramic DIP package rated for military temperature ranges. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN54ALS138AJ 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
What are the key features of SN54ALS138AJ?
- 3-to-8 line decoder/demultiplexer with Schottky-clamped outputs for high-speed address decoding and memory selection in digital systems
- Dual active-low and single active-high enable inputs enabling cascading and flexible chip-select control in complex logic designs
- Military-grade 16-pin ceramic DIP (R-GDIP-T16) package providing superior reliability in harsh environments and extended temperature operation
What is SN54ALS138AJ used for?
The SN54ALS138AJ is designed for address decoding, memory chip selection, and demultiplexing in military-grade and high-reliability digital systems. Its Schottky-clamped ALS logic provides fast propagation delays suitable for high-speed bus interface and control logic applications. This device is commonly used in ruggedized embedded systems, avionics, and defense electronics requiring dependable decoder performance over wide temperature ranges.
What are the specifications of SN54ALS138AJ?
| 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 |
| 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 SN54ALS138AJ datasheet?
SN54ALS138AJ Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN54ALS138AJ?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the function of the SN54ALS138AJ?
The SN54ALS138AJ is a 3-to-8 line decoder and demultiplexer that converts a 3-bit binary input into one of eight active-low outputs, with two active-low and one active-high enable inputs for cascading and chip-select control in address decoding and logic systems.
What package does the SN54ALS138AJ use?
The SN54ALS138AJ is packaged in a 16-pin ceramic DIP (Dual In-Line Package) with JESD-30 code R-GDIP-T16, a robust package format designed for military and high-reliability applications requiring superior thermal performance and long-term stability.
What logic family does the SN54ALS138AJ belong to?
The SN54ALS138AJ is part of the ALS (Advanced Low-Power Schottky) TTL logic family, offering Schottky-clamped outputs for improved switching speed and reduced power consumption compared to standard TTL, with a 50pF load capacitance rating and 4mA output low current.
What are typical applications for the SN54ALS138AJ?
The SN54ALS138AJ is commonly used in address decoding for memory systems, chip-select generation for microprocessor buses, data demultiplexing, and control logic in military avionics, ruggedized industrial systems, and legacy TTL-based digital designs requiring reliable 3-to-8 decoding.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit