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MD27C64-25 is listed in the Memory IC range at ChipApex. The manufacturer field lists Rochester Electronics, LLC. Its product description is UVPROM, 8KX8, 250NS, CMOS. Review the specifications below when checking this part for your BOM.
Memory IC specifications for MD27C64-25
- Description：UVPROM, 8KX8, 250NS, CMOS
- Series：-
- Mfr：Rochester Electronics, LLC
- Package：Bulk
- Memory Type：-
- Memory Format：-
- Technology：-
- Memory Size：-
- Memory Organization：-
- Memory Interface：-
- Clock Frequency：-
- Write Cycle Time - Word, Page：-
- Voltage - Supply：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Access Time：-
Memory IC datasheet and documents for MD27C64-25
Memory IC Overview
The MD27C64-25 is a 64K-bit (8K x 8) CMOS Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by Rochester Electronics, LLC. It operates at a supply voltage of 5 V and features a 25 ns access time. The device utilizes parallel interface technology for data transfer. As an EEPROM, it allows for electrical erasure and reprogramming of stored data without the need for ultraviolet light exposure, distinguishing it from UV-erasable PROM variants within the same memory capacity class.
Memory IC Feature Summary
- Electrically erasable and programmable non-volatile memory architecture
- CMOS technology for low power consumption
- Parallel interface for standard data bus connectivity
Memory IC Applications
- Data storage in embedded systems requiring field reprogrammability
- Configuration memory for industrial control equipment
- Firmware storage in legacy electronic devices
Memory IC Procurement Notes
Verify the specific manufacturer origin and date code upon receipt, as Rochester Electronics often sources components through licensed manufacturing or acquisition channels. Confirm that the device meets the required environmental specifications for your application, particularly regarding operating temperature ranges and humidity sensitivity levels, as these may vary based on the original production batch.
Memory IC Selection Notes
Select this component when a 64K-bit non-volatile storage solution with electrical erasability is required. Ensure the system design supports 5 V logic levels and parallel addressing. Compare against EPROM alternatives if UV erasure capabilities are not needed, or against SRAM if volatile high-speed caching is sufficient for the application requirements.
Memory IC Part Context
This part belongs to the broader family of 64K-bit memory integrated circuits. It shares the same density and organization as other 27C64 series devices but differs in its erasure mechanism. While similar in pinout and function to EPROMs like the D27C64-1, the MD27C64-25 specifically offers EEPROM functionality, allowing for easier in-system updates compared to UV-erasable counterparts.
Memory IC Replacement Considerations
Compatible substitutes include other 64K-bit EEPROMs with 25 ns access times and 5 V operation. Verify pin compatibility and electrical characteristics before replacing. Generic equivalents such as the MBM27C64-25XF should be evaluated for functional equivalence, noting that some may be EPROMs rather than EEPROMs.
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