SST25VF064C-80-4I-S3AE

Memory IC Overview

The SST25VF064C-80-4I-S3AE is a 64 Mbit SPI Serial Dual I/O Flash memory manufactured by Microchip Technology. It operates on a single voltage supply of 2.7V to 3.6V and supports SPI Mode 0 and Mode 3. The device features an 80 MHz high-speed read clock frequency, with dual-output and dual-I/O modes supporting up to 75 MHz and 50 MHz respectively. It utilizes SuperFlash technology for superior reliability and low power consumption, including a typical standby current of 5 µA. The memory array is organized into uniform 4 KByte sectors and 64 KByte overlay blocks.

Memory IC Feature Summary

• Supports high-speed serial communication via SPI interface with dual input/output capabilities for enhanced data throughput.
• Features flexible erase architecture with uniform sector and block sizes for efficient memory management.
• Includes hardware write protection via the WP# pin and software protection through status register bits.
• Integrates a 256-bit Security ID with factory-programmed unique identifiers and user-programmable segments.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Consumer electronics firmware repositories
• Industrial control system data logging

Memory IC Procurement Notes

This component is designated as End-of-Life (EOL) by the manufacturer. Verification of availability should focus on obsolete stock or authorized distributors holding remaining inventory. Replacement strategies must be initiated immediately due to discontinuation status. Cross-reference official Microchip documentation for approved substitute part numbers before finalizing procurement plans.

Memory IC Selection Notes

Select this component only if legacy compatibility with the SST25 series instruction set is required. Verify that the host controller supports the specific SPI modes and dual I/O protocols defined in the datasheet. Ensure the operating environment stays within the industrial temperature range of -40°C to +85°C. Confirm that the 2.7V to 3.6V supply voltage aligns with the system power rails.

Memory IC Part Context

The SST25VF064C belongs to the SST25 series of Serial Flash memories from Silicon Storage Technology, now part of Microchip Technology. This family is known for using CMOS SuperFlash technology, which offers improved reliability and lower power consumption compared to traditional flash technologies. The device is designed for applications needing small form factors and robust data retention.

Memory IC Replacement Considerations

Consult Microchip Sales for replacement information as the device is obsolete. No direct public substitute part numbers are confirmed in the provided source material.

Memory IC FAQ

What is the function of the RST#/HOLD# pin?

The RST#/HOLD# pin provides hardware reset functionality by default. It can be configured as a Hold pin via the EHLD instruction to pause serial communication without resetting the clocking sequence.

How does the Write Protect (WP#) pin operate?

Driving the WP# pin low enables the lock-down function of the Block-Protection-Lock (BPL) bit in the status register, preventing alteration of block protection settings when BPL is set.