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Product Detailed Parameters
- Description：IC PROM 1KBIT PARALLEL 20PLCC
- Series：-
- Mfr：Advanced Micro Devices
- Package：Bulk
- Memory Type：Non-Volatile
- Memory Format：PROM
- Technology：-
- Memory Size：1Kbit
- Memory Organization：256 x 8
- Memory Interface：Parallel
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：0°C ~ 75°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-LCC (J-Lead)
- Supplier Device Package：20-PLCC (9x9)
- Access Time：40 ns
- Grade：-
- Qualification：-
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Overview
The 63S281ANL is a non-volatile Programmable Read-Only Memory (PROM) integrated circuit manufactured by Advanced Micro Devices. It features a memory organization of 256 words by 8 bits, providing a total capacity of 1Kbit. The device utilizes parallel interface technology for data access and operates with a standard 5V supply voltage. It is housed in a 20-pin Plastic Leaded Chip Carrier (PLCC) package, specifically the 20-PLCC form factor measuring 9x9 mm. This component is designed for applications requiring fixed data storage with parallel read capabilities.
Feature Summary
- Non-volatile PROM architecture retains data without power
- Parallel interface for direct word access
- Standard 5V TTL-compatible operation
- 20-pin PLCC surface-mount packaging
Applications
- Embedded system firmware storage
- Microcontroller program memory
- Fixed lookup table implementation
- Industrial control logic storage
Procurement Notes
Verify the manufacturer designation as Advanced Micro Devices or its successor entities. Confirm the package type is strictly 20-PLCC. Ensure the memory density matches the 256x8 configuration. Check for any specific ordering suffixes that may indicate variant differences. Request original datasheets to validate electrical specifications before integration.
Selection Notes
Select this component when a parallel interface PROM is required for fixed code storage. The 256x8 organization suits small application programs. The 5V supply requirement must align with the system logic levels. The PLCC package necessitates compatible PCB footprints. Consider availability from authorized distributors given the component's age.
Part Context
This part belongs to the 63S series of PROMs from Advanced Micro Devices. These devices were widely used in early computing and industrial electronics for storing boot code and configuration data. The 63S281ANL represents a specific density within this family, offering a balance between capacity and speed for legacy systems.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing socket designs if replacing. Ensure pinout alignment with the original 20-PLCC footprint. Check voltage tolerance matches the 5V specification.
