SST25VF064C-80-4C-Q2AE

Memory IC Overview

The SST25VF064C-80-4C-Q2AE is a 64 Mbit SPI Serial Dual I/O Flash memory manufactured by Microchip Technology. It utilizes SuperFlash technology and supports a single voltage supply of 2.7V to 3.6V. The device features an SPI-compatible interface supporting Mode 0 and Mode 3, with clock frequencies up to 80 MHz for high-speed read (0BH), 75 MHz for Fast-Read Dual-Output (3BH), and 50 MHz for Fast-Read Dual I/O (BBH). Standard Read operations support up to 33 MHz. It includes flexible erase capabilities with uniform 4 KByte sectors and 32/64 KByte overlay blocks. The component offers software write protection, a 256-bit Security ID, and operates within the commercial temperature range of 0°C to +70°C.

Memory IC Feature Summary

• Supports dual input/output modes for enhanced data transfer speeds via Fast-Read Dual-Output and Fast-Read Dual I/O instructions.
• Includes a 256-bit factory-programmed and user-programmable Security ID feature for device identification and security.
• Provides flexible software write protection through Block-Protection bits in the status register and a dedicated Write Protect pin.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Data logging applications needing sector-level erasure
• Secure identification devices utilizing OTP Security ID

Memory IC Procurement Notes

This specific part number is designated as End-of-Life (EOL) by the manufacturer. Verification of current availability requires direct contact with Microchip Sales or authorized distributors. Replacement information should be obtained from official channels rather than relying on generic cross-reference lists. Confirm package type and suffix requirements carefully when sourcing alternatives.

Memory IC Selection Notes

Select this component for designs requiring 64 Mbit capacity with dual I/O speed enhancements. Ensure the system power supply remains within the 2.7V to 3.6V range. Verify that the host controller supports the required SPI modes and instruction sets. Consider the commercial temperature range limits if operating in harsh environments. Check package availability against board space constraints.

Memory IC Part Context

The SST25VF064C belongs to the SST25 series of Serial Flash memories. This family is characterized by high-performance CMOS SuperFlash technology, which provides superior reliability and lower power consumption compared to alternative flash technologies. The series emphasizes low pin-count packages to reduce board space and total system costs while maintaining robust data retention and endurance specifications.

Memory IC Replacement Considerations

Microchip indicates this device is obsolete. Contact Microchip Sales directly for confirmed replacement part numbers. Do not assume functional equivalence with other SST25 variants without verifying datasheet compatibility regarding voltage, speed, and package dimensions.

Memory IC FAQ

What is the maximum clock frequency for standard Read operations?

The standard Read instruction (03H) supports a maximum clock frequency of 33 MHz.

How is the Hold mode activated on the RST#/HOLD# pin?

Hold mode is activated by executing the EHLD instruction (AAH) to enable the hold pin functionality, after which driving the HOLD# signal low pauses serial communication.

Can the factory-programmed portion of the Security ID be changed?

No, the 64-bit factory-programmed segment of the Security ID cannot be changed or erased once programmed at the factory.