32 Mbit Flash

20 July 2011 DSP, Micros & Memory

Microchip has expanded its Serial Quad I/O (SQI) Flash memory family with the new 3 V, 32 Mbit SST26VF032. The device’s 4-bit, multiplexed I/O interface features an enhanced architecture that provides flexible data/code protection schemes.

With an 80 MHz operating frequency and a specialised instruction set, the SST26VF032 targets execute-in-place (XIP) applications, allowing programs to be stored and executed directly from the Flash memory. This increases overall system performance without the need for code shadowing on a RAM device. The chip is available in 6 x 5 mm, 8-pin WSON and

8-pin SOIC package options, and is targeted at mobile handsets, DVD and Blu-ray players, printers, digital TVs, network appliances, GPS devices, DSL and cable modems, smart meters and more.

The device features low latency and burst-mode operation, which allows code execution in burst snippets to fill cache-line buffers and maximise system bandwidth in applications without RAM. Additionally, it features index memory operation, which accelerates memory data access without the need to load an entire address. Proprietary CMOS SuperFlash technology enables typical programme time of 1 ms, and a typical erase time of 18 ms. The IC also offers enhanced security features, including block protection, block-protection lockdown and a one-time programmable area, which protect against unauthorised access and malicious read, program and erase events.

The SST26VF032 features an active typical read current of 12 mA, a typical standby current of 8 mA and a low maximum leakage current of 1 mA. It has an endurance of 100 000 erase/write cycles with a minimum data retention of 100 years.

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