Microchip's new SQI memory devices feature SuperFlash technology - Embedded.com

Microchip’s new SQI memory devices feature SuperFlash technology

Microchip has announced new family of 1.8V Serial Quad I/O (SQI) SuperFlash Memory devices—SST26WF016B.  This device offers 16-Mbit of memory and is manufactured with Microchip’s high-performance SuperFlash technology, which provides what the company claims is the industry’s fastest erase times and superior reliability.  Sector and block erase commands are completed in just 18 ms and a full chip erase operation is completed in 35 ms. Microchip claims that competing devices require in the range of 10 to 20 seconds to complete a full chip erase operation, making SST26WF016B approximately 400 times faster. 

The SQI interface is a high-speed 104 MHz 4-bit multiplexed I/O serial interface which allows for high-data throughput in a low pin-count package.  This interface enables low latency execute-in-place (XIP) capability, allowing programs to be stored and executed directly from the Flash memory and eliminating the need for code shadowing on a RAM device. The SST26WF016B provides faster data throughput than a comparable x16 parallel Flash device without the associated high cost and high-pin count of parallel Flash.  The SQI interface also offers full command-set backwards compatibility to traditional Serial Peripheral Interface (SPI) protocol.

Designed for low-power consumption, the SST26WF016B helps maximize battery life in portable applications.  Standby current consumption is 10 µA typical and a deep power-down mode further reduces current consumption to 2.5 µA typical. Active read current at 104 MHz is 15 mA typical.  The combination of 1.8V operation with low-power consumption and small form factor packaging makes the SST26WF016B an excellent choice for applications such as portable medical devices, Bluetooth headsets, GPS, camera modules and hearing aids.

The SST26WF016B offers 100 years data retention and device endurance of over 100,000 erase/write cycles.  Enhanced safety features include software write protection of individual blocks for flexible data/code protection and a One-Time Programmable (OTP) 2 Kbyte Secure ID area.  These features protect against unauthorized access and malicious read, program and erase intentions.  The device also includes a JEDEC-compliant Serial Flash Discoverable Parameter (SFDP) table, which contains identifying information about the function and capability of the SST26WF016B in order to simplify software design. 

SST26WF016B Product Page Documentation:  http://www.microchip.com/get/X7SV

More information

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.