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Product Detailed Parameters
- Description：IC EEPROM 64KBIT SPI 10MHZ 8SOIC
- Series：-
- Mfr：Microchip Technology
- Package：Tube
- Memory Type：Non-Volatile
- Memory Format：EEPROM
- Technology：EEPROM
- Memory Size：64Kbit
- Memory Organization：8K x 8
- Memory Interface：SPI
- Clock Frequency：10 MHz
- Write Cycle Time - Word, Page：5ms
- Voltage - Supply：2.5V ~ 5.5V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Access Time：-
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The Microchip Technology 25LC640A-E/SN16KVAO is a 64-Kbit Serial Electrically Erasable PROM accessed via an SPI-compatible serial bus. It features a maximum clock frequency of 10 MHz and operates within a voltage range of 2.5V to 5.5V. The device supports an extended temperature range from -40°C to +125°C and is AEC-Q100 qualified. It utilizes low-power CMOS technology with standby current as low as 1 µA at 5.5V.
Feature Summary
- Supports sequential read operations with automatic address pointer incrementation
- Includes built-in write protection mechanisms such as power-on/off data protection and a write enable latch
- Features block write protection allowing selective array segment locking
Applications
- Automotive electronic systems requiring high reliability
- Industrial control applications operating in extended temperature environments
- Embedded memory storage for microcontroller-based devices
Procurement Notes
Verify the specific suffix 'SN16KVAO' against official Microchip documentation to confirm package type, tape-and-reel specifications, and automotive qualification status. Ensure compatibility with system voltage requirements and interface protocols before integration.
Selection Notes
Select this component for designs requiring robust data retention and high endurance under demanding thermal conditions. The extended temperature rating and automotive qualification make it suitable for harsh environments where standard industrial parts may fail.
Part Context
This part belongs to the 25LC640A family of 64-Kbit SPI EEPROMs. It shares functional characteristics with other variants in the series but is distinguished by its extended temperature range and specific packaging configuration intended for automated assembly processes.
Replacement Considerations
Compatible substitutes include other 25LC640A variants with matching electrical specifications and pinouts. Verify that any replacement maintains the required extended temperature range and automotive qualification standards.
