These devices contain three independent 3-input positive-NOR
gates. They perform the Boolean functions 
or 
in positive logic.
The SN54ALS27A and SN54AS27 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS27A and SN74AS27 are characterized for operation from 0°C to 70°C.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Triple 3-Input Positive-NOR Gates datasheet (Rev. B) | 01 Dec 1994 | |
| * | SMD | SN54ALS27A SMD 5962-86838 | 21 Jun 2016 | |
| Selection guide | Logic Guide (Rev. AB) | 12 Jun 2017 | ||
| Application note | Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) | 02 Dec 2015 | ||
| User guide | LOGIC Pocket Data Book (Rev. B) | 16 Jan 2007 | ||
| Application note | Semiconductor Packing Material Electrostatic Discharge (ESD) Protection | 08 Jul 2004 | ||
| Application note | TI IBIS File Creation, Validation, and Distribution Processes | 29 Aug 2002 | ||
| Application note | Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) | 01 Aug 1997 | ||
| Application note | Designing With Logic (Rev. C) | 01 Jun 1997 | ||
| Application note | Input and Output Characteristics of Digital Integrated Circuits | 01 Oct 1996 | ||
| Application note | Live Insertion | 01 Oct 1996 | ||
| Application note | Advanced Schottky (ALS and AS) Logic Families | 01 Aug 1995 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| CDIP (J) | 14 | Ultra Librarian |
| CFP (W) | 14 | Ultra Librarian |
| LCCC (FK) | 20 | Ultra Librarian |
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