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Product Detailed Parameters
- Description：IC GATE NOR 3CH 3-INP 14-SO
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Number of Circuits：-
- Number of Inputs：-
- Features：-
- Voltage - Supply：-
- Current - Quiescent (Max)：-
- Current - Output High, Low：-
- Input Logic Level - Low：-
- Input Logic Level - High：-
- Max Propagation Delay @ V, Max CL：-
- Operating Temperature：-
- Mounting Type：-
- Supplier Device Package：-
- Package / Case：-
- Grade：-
- Qualification：-
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Overview
The SN74ALS27ANS is a Texas Instruments logic gate component belonging to the ALS series. It integrates three independent 3-input positive NOR gates within a single package. The device operates on a supply voltage ranging from 4.5 V to 5.5 V and supports a propagation delay of 15 ns. It features a low-level output current capability of 8 mA and a high-level output current of -0.4 mA. Designed for surface-mount applications, it utilizes a 14-pin SOIC package and functions reliably within an operating temperature range of 0°C to +70°C.
Feature Summary
- Integrates three independent 3-input positive NOR logic gates
- Utilizes Advanced Low-Power Schottky (ALS) technology for optimized speed and power consumption
- Provides push-pull outputs with defined sourcing and sinking capabilities
Applications
- Digital logic circuit design requiring multi-input NOR functionality
- Signal processing systems utilizing standard TTL-compatible logic levels
- Embedded control hardware implementing boolean logic operations
Procurement Notes
Verify the specific suffix against manufacturer documentation to confirm package type and tape-and-reel specifications. Ensure the ordering code matches the required industrial temperature range and RoHS compliance status. Cross-reference the datasheet revision to validate electrical characteristics before finalizing procurement orders.
Selection Notes
Select this component when designing circuits that require multiple NOR gates in a compact surface-mount form factor. The ALS series offers a balance between switching speed and power dissipation suitable for general-purpose digital applications. Confirm that the system voltage remains within the specified 4.5 V to 5.5 V operational limits to ensure reliable performance.
Part Context
This part belongs to the SN74ALS27A family of triple 3-input NOR gates manufactured by Texas Instruments. The ALS designation indicates the use of Advanced Low-Power Schottky semiconductor technology. This family provides improved performance metrics compared to standard LS logic while maintaining pin compatibility with industry-standard logic interfaces.
Replacement Considerations
Compatible substitutes include the SN74ALS27AD and SN74ALS27ANSR. Verify that alternative parts maintain identical logic functionality, pinout configuration, and electrical parameters such as propagation delay and output drive strength.
