MSP430 Memory
FRAM
Some of the latest MSP430 devices from TI now use FRAM in place of Flash for their non-volatile
memory storage. For example, you will find the Wolverine (FR58xx, FR59xx) devices utilize this
new technology.
Actually, FRAM is not a brand new technology. It has been available in stand-alone memory
chips for nearly a decade. It is quite new, though, to find it used within micros.
In brief, the MSP430 FRAM provides some exciting new features in our MCUs:
• FRAM memory is a nonvolatile memory that reads and writes like standard SRAM
• It supports Byte or word write access
• A nearly limitless re-write capability – ‘we haven’t worn it out yet’
• Very fast write cycles – much faster than Flash or EEPROM
• Very low power – unlike Flash memory, it only takes 1.5V to write and erase FRAM (really
ideal for low-power data logging applications)
• Error Correction Code with bit error correction, extended bit error detection and flag indicators
• Power control for disabling FRAM if it is not used – and due to non-volatile nature, it naturally
does not lose its contents in the process of powering down
MSP430 Workshop - Introduction to MSP430 1 - 19
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