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Product Detailed Parameters
- Description：SRAM, 4X4
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Memory Type：Volatile
- Memory Format：CAM
- Technology：CAM
- Memory Size：16bit
- Memory Organization：4 x 4
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：-
- Operating Temperature：0°C ~ 85°C (TC)
- Mounting Type：Through Hole
- Package / Case：24-CDIP (0.600", 15.24mm)
- Supplier Device Package：24-CDIP
- Access Time：4.5 ns
- Grade：-
- Qualification：-
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Overview
The National Semiconductor 100142DC is a CAM (Content-Addressable Memory) IC featuring a 16-bit parallel interface. It operates with an access time of 4.5 ns and is housed in a 24-pin CDIP package.
Feature Summary
- High-speed associative memory functionality
- Parallel data interface architecture
Applications
- High-speed data lookup systems
- Network packet classification hardware
- Hardware-based search engines
Procurement Notes
Verify the manufacturer origin, as National Semiconductor assets are now managed by Microchip Technology. Confirm the specific suffix 'DC' corresponds to the correct temperature range and package variant for your design requirements. Ensure compatibility with existing 24-CDIP footprints.
Selection Notes
Select this component when content-addressable storage is required rather than traditional address-based RAM. The 16-bit width and nanosecond-scale access speed suit applications demanding immediate data matching against stored keys without CPU intervention.
Part Context
This part belongs to the National Semiconductor memory product line, specifically within the CAM category. It represents legacy high-performance memory solutions designed for specialized parallel processing tasks before widespread adoption of modern SRAM architectures.
Replacement Considerations
Microchip Technology acquired National Semiconductor's assets. Verify if Microchip offers direct cross-references or updated equivalents for discontinued CAM components.
