SN54ALS27AJ Texas Instruments Integrated Circuit (Ceramic Dual-In-Line Packages) In Stock
The SN54ALS27AJ is a triple 3-input NOR gate logic IC from Texas Instruments in the advanced low-power Schottky (ALS) family, packaged in a 14-pin ceramic DIP. It features 50 pF load capacitance and a low output sink current, ideal for military-grade and high-reliability digital logic applications. Suitable for logic gating, signal decoding, and combinational logic design in harsh environments.
- Manufacturer
- Texas Instruments
- Package
- Ceramic Dual-In-Line Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- SN54ALS27AJ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $10.3700(MOQ 19)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Triple 3-input NOR gate configuration in a single 14-pin package
- Advanced Low-power Schottky (ALS) family for fast switching and reduced power consumption
- 50 pF rated load capacitance for reliable high-frequency operation
- Ceramic DIP-14 package (R-GDIP-T14) for high reliability and military-grade environments
- Pb-free and JESD-609 e0 compliant construction
- Three independent NOR gate functions for flexible logic design
Applications
The SN54ALS27AJ is used in military, aerospace, and industrial control systems where reliable high-speed logic gating is required under extreme environmental conditions. Its triple NOR gate configuration is ideal for combinational logic, bus arbitration, and signal decoding in rugged embedded systems and fault-tolerant digital circuits.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Family | ALS |
| JESD-30 Code | R-GDIP-T14 |
| JESD-609 Code | e0 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | NOR GATE |
| Max I(ol) | 0.0004A |
| Number of Functions | 3 |
| Number of Inputs | 3 |
| 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) | 4mA |
| Prop. Delay@Nom-Sup | 26ns |
| Propagation Delay (tpd) | 11ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| 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 logic function does the SN54ALS27AJ implement?
The SN54ALS27AJ implements three independent 3-input NOR gate functions in a single 14-pin ceramic DIP package, part of the ALS (Advanced Low-power Schottky) logic family, offering fast switching with low power consumption.
What is the load capacitance rating of the SN54ALS27AJ?
The SN54ALS27AJ is rated for a maximum load capacitance of 50 pF and a maximum output sink current of 0.4 mA, making it suitable for standard TTL-compatible logic interfaces and high-reliability signal processing applications.
What package is the SN54ALS27AJ available in and is it suitable for harsh environments?
The SN54ALS27AJ is packaged in a 14-pin ceramic dual in-line package (R-GDIP-T14). Its ceramic construction provides superior thermal and mechanical performance, making it suitable for military, aerospace, and industrial applications requiring high reliability.
Is the SN54ALS27AJ compatible with standard TTL logic levels?
Yes, the SN54ALS27AJ is part of the ALS TTL-compatible logic family, designed to interface with standard 5V TTL systems. It provides NOR gate logic at speeds and power levels suitable for complex combinational and sequential digital circuits.
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 |
|---|---|---|
| 19+ | $16.2000 | $307.80 |
| 500+ | $11.6600 | $5830.00 |
| 1000+ | $11.0200 | $11020.00 |
| 10000+ | $10.3700 | $103700.00 |
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.”