Replacement of FM25V20A, Ferroelectric Memory GX85RS2MC in Vehicle Control Unit VCUs

Vehicle electronic control system for access to various types of sensor data needs to continue to increase, so the demand for high-performance non-volatile memory technology is also increasingly high, because when the system in the data analysis or other data processing, only this type of memory to be able to reliably and without delay to store the data collected by the sensor.

VCU is the core control component of the whole car, equivalent to the brain of the car, through the collection of gas pedal, gear, brake pedal and other signals to determine the driver‘s driving intentions; through the monitoring of the vehicle status (speed, temperature, etc.) information, by the VCU judgment and processing, to the power system, the power battery system to send the vehicle‘s operating status control instructions, and at the same time, control of the vehicle accessories power system work mode; In addition, VCU also has the function of fault diagnosis protection and storage of the whole vehicle system.

Since ferroelectric memory is a non-volatile memory, not only can it perform high-speed random access, but it also has the characteristic of high write resistance, so it can meet the needs of such applications with the best performance.

The core technology of GX85RS2MC is the ferroelectric process and silicon gate CMOS process technology to form a non-volatile memory cell, which does not require a battery to hold data. It operates from 2.7V to 3.6V and has a minimum standby power consumption of only 9 microamps, which enables reliable and delay-free data storage at low current and prevents data loss after power down.

The products are described as follows:

1, GX85RS2MC‘s storage unit can be used for 1 million reads and writes, data retention: 10 years @ 85℃ (200 years @ 25℃), and data will not be lost when the device is powered down.

2, GX85RS2MC maximum power consumption is 5mA, standby current is only 7μA, can effectively reduce the power consumption of the device.

3, GX85RS2MC supports SPI serial interface and adopts SOP8 small package, which saves PCB board design space and is easy to layout.

4, GX85RS2MC working environment temperature range is -40 ℃ to 85 ℃, in line with the industrial environment applications.

5, GX85RS2MC performance is compatible with MB85RS2MT (Fujitsu) and FM25V20A (Cypress);