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Product Detailed Parameters
- Description：BUS DRIVER, AS SERIES
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Logic Type：-
- Circuit：-
- Output Type：-
- Voltage - Supply：-
- Independent Circuits：-
- Delay Time - Propagation：-
- Current - Output High, Low：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The SN74AS580DW is an octal D-type transparent latch from Texas Instruments' AS series, housed in a 20-SOIC package. It features tri-state outputs and operates within a 4.5V to 5.5V supply range. Key electrical parameters include a propagation delay of 10 ns, a low-level output current of 32 mA, and a high-level output current of -15 mA. The device supports through-hole or surface-mount installation depending on the specific variant configuration, with a maximum operating temperature of +85°C.
Feature Summary
- Octal D-type transparent latch architecture providing eight independent data storage channels
- Tri-state output capability for efficient bus-oriented memory applications
- High-speed performance characteristic of the Advanced Schottky (AS) logic family
Applications
- Bus-oriented memory systems requiring high-speed data latching
- Register files in digital signal processing architectures
- Parallel-to-serial conversion interfaces in communication hardware
Procurement Notes
Verify the exact suffix against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required package type and temperature rating for your specific design constraints before finalizing procurement decisions.
Selection Notes
Select this component when high-speed latching is required alongside tri-state bus driving capabilities. Compare propagation delays and output drive strengths against system timing requirements. Ensure the SOIC package fits the available PCB real estate and thermal management strategy for the target application environment.
Part Context
This part belongs to the SN74AS580 family of octal latches. It serves as a high-speed alternative to standard TTL or ALS series devices, offering improved switching speeds while maintaining compatible logic levels. The AS series is designed for demanding digital systems where timing margins are critical.
Replacement Considerations
Direct substitutes may include other manufacturers' SN74AS580 variants. Verify pin compatibility and electrical characteristics against the original specification sheet before substitution.
