Enhanced security for automotive with flash memories

26th January 2017

Enaie Azambuja

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Cypress Semiconductor introduced 64Mb and 128Mb densities to its family of NOR Flash memories with a Quad Serial Peripheral Interface (Quad SPI). The new FL-L NOR Flash devices provide the utmost reliability and security for high-performance embedded systems that store critical data and operate at extended temperatures. The FL-L devices also offer low power consumption and AEC-Q100 automotive-grade qualification with high read bandwidth and fast program time at an extended temperature range.

Using small, uniform 4KB physical memory sectors allows the devices to optimally store program code and parametric data. The devices are ideal for high-performance applications, such as Advanced Driver Assistance Systems (ADAS), automotive instrument clusters and infotainment systems, industrial control and smart factory equipment, networking equipment, IoT applications, video game consoles and set-top boxes.

“Our FL-L Quad SPI NOR Flash family offers the highest reliability and enhanced security, along with the bandwidth and small form factor that high-performance applications require,” said Rainer Hoehler, Vice President of the Flash Business Unit at Cypress.

“Expanding this family fits in with our strategy to offer high-performance memories that combine with Cypress’ MCU, analog and connectivity solutions to offer complete embedded system-level solutions for our fast-growing target markets.”

High-performance system designs require high read bandwidth for program execution, small, low-pin-count packages, and fast program and erase times. Cypress’ 128Mb and 256Mb FL-L Quad SPI NOR Flash devices are each capable of 133-MHz Single Data Rate (SDR) and 66-MHz Double Data Rate (DDR) for bandwidth of 67 Mbps, and the 64Mb devices leverage a 54-MHz DDR mode to deliver read bandwidth of 54 Mbps, enabling fast program execution for high-performance systems.

The memories provide low standby current and a deep-power-down mode that extends battery life for battery powered applications. The family offers AEC-Q100 automotive qualification and supports an extended temperature range of -40°C to +125°C.

The 128Mb and 256Mb devices can increase customers’ manufacturing throughput with a fast 0.30-ms program time per 256 bytes, and they offer a 50-ms erase time that enables new data to be written quickly. The devices are available in industry-standard packages including the USON (4mm x 4mm) package that saves board space and simplifies layout.