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Product Detailed Parameters
- Description：IC GATE NAND
- 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 SN74ALS1003AN is a quadruple 2-input positive-NAND buffer featuring open-collector outputs, belonging to the Texas Instruments ALS logic series. It operates within a supply voltage range of 4.5 V to 5.5 V and supports propagation delays up to 33 ns. The device provides a load capacitance capability of 50 pF and is housed in a PDIP-14 package for through-hole mounting.
Feature Summary
- Quadruple 2-input NAND buffer configuration with open-collector outputs
- Compatible with standard TTL input levels
- Supports high-speed switching applications via ALS technology
Applications
- Digital signal buffering in microprocessor systems
- Open-drain interconnects for wired-OR logic configurations
- Level shifting between different logic families
Procurement Notes
Verify the specific suffix 'AN' confirms the PDIP-14 through-hole package variant. Confirm RoHS compliance status as indicated in official documentation. Ensure the open-collector output type matches system requirements for pull-up resistor implementation. Check for active production status before finalizing procurement plans.
Selection Notes
Select this component when open-collector NAND functionality is required for bus sharing or voltage level translation. The ALS series offers improved speed over standard 74LS devices while maintaining low power consumption. Ensure the circuit design accommodates the necessary external pull-up resistors for the open-collector outputs to function correctly at the desired logic high levels.
Part Context
This part belongs to the SN74ALS family, representing Advanced Low-power Schottky logic. It serves as a specialized buffer variant distinct from standard push-pull outputs, enabling unique wiring configurations in digital circuits where multiple outputs must share a common line without contention.
Replacement Considerations
Direct substitutes include other SN74ALS1003 variants with compatible packages. Verify pinout compatibility when replacing with generic ALS NAND buffers. Ensure open-collector output specifications match the original design constraints.
