SST25VF016B-50-4I-QAF-T

Memory IC Overview

The SST25VF016B-50-4I-QAF-T is a 16 Mbit (2M x 8) SPI Serial Flash memory manufactured using Microchip's SuperFlash technology. It operates on a single voltage supply of 2.7V to 3.6V and supports clock frequencies up to 50 MHz. The device features uniform 4 KByte sectors, 32 KByte overlay blocks, and 64 KByte overlay blocks for flexible erasure. It includes hardware write protection via the WP# pin and software block protection bits. The component is designed for industrial temperature ranges (-40°C to +85°C) and offers low power consumption with typical active read current of 10 mA and standby current of 5 µA.

Memory IC Feature Summary

• Utilizes proprietary CMOS SuperFlash technology with split-gate cell design for enhanced reliability and lower power consumption compared to alternative flash technologies.
• Supports flexible erase capabilities including uniform 4 KByte sectors, 32 KByte overlay blocks, and 64 KByte overlay blocks.
• Provides hardware write protection through the WP# pin to lock status register block protection bits, alongside software-based write protection mechanisms.
• Features Auto Address Increment (AAI) programming mode to decrease total chip programming time over standard byte-program operations.

Memory IC Applications

• Industrial control systems requiring robust non-volatile storage
• Embedded firmware storage in microcontroller-based designs
• Data logging applications needing high endurance and retention

Memory IC Procurement Notes

Verify that the specific suffix -QAF-T corresponds to the required package type and tape-and-reel delivery format as defined in the official datasheet. Confirm the industrial temperature grade (-40°C to +85°C) matches your environmental requirements. Ensure compatibility with the 2.7V-3.6V supply voltage range for your target application circuitry before finalizing procurement.

Memory IC Selection Notes

Select this component when a 16 Mbit capacity with SPI interface is required for industrial environments. It is suitable for designs needing fast erase times and high endurance. Consider the 8-lead SOIC or WSON package availability based on PCB space constraints. Ensure the system controller supports SPI Mode 0 and Mode 3 protocols for proper communication.

Memory IC Part Context

This part belongs to the SST25VF016B series within Microchip's 25 Series Serial Flash family. These devices are engineered to improve performance and reliability while lowering power consumption relative to earlier SST25VFxxxA generations. The series utilizes high-performance CMOS SuperFlash technology to achieve superior manufacturability and data retention characteristics.

Memory IC Replacement Considerations

Direct substitutes include other SST25VF016B variants with different temperature grades or packaging options, such as SST25VF016B-50-4C-S2AF for commercial temperature ranges. Verify pinout compatibility and electrical specifications before substituting.