AN1879 Datasheet, PDF (1/8 Pages) STMicroelectronics – How to use the M41ST87W tamper detect and RAM clear

AN1879
Application note
How to use the M41ST87W tamper detect and RAM clear
Introduction
The M41ST87W is a supervisory family circuit that provides the industry with the latest in onchip
security solutions. The tamper detection and RAM clear circuit can be used in any system to protect
sensitive data from tampering. This chip can be used to secure a wide range of applications from credit
card machines and point-of-sale (POS) terminals to electric data meters. The M41ST87W features the
ability to detect and timestamp any tampering of the system, and corrupt the device memory when the
event occurs. This prevents the intruder from accessing data stored in memory by clearing the device
memory and/or external RAM when the tampering event occurs.
October 2013
DocID010159 Rev 5
1/8
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