Mitsubishi Motors DS5000TK - Manual (Page 5)

USER’S GUIDE
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5
DS2251T 128K Soft Microcontroller Module
The DS2251T is a SIMM based on the DS5001. It pro-
vides up to 128K bytes of on–board NV RAM and has
the Byte–wide bus available at the connector. This is
used with the decoded peripheral enables for memory
mapped peripherals such as a UART or A/D converter.
The real–time clock is a parallel access type with inter-
rupt capability. Like the older versions, the DS2251T
provides 10–year data retention, even in the largest
memory configuration.
DS5002FP Secure Microprocessor Chip
The DS5002FP is a highly secure version of the
DS5001FP. It provides the operating features of the
DS5001FP, with the following enhancements to the
DS5000 security features.
•
Security is active at all times
•
Improved memory encryption using a 64–bit en-
cryption key
•
Automatic random generation of encryption keys
•
Self–destruct input for tamper protection
•
Optional top–coating prevents microprobe
(DS5002FPM)
DS2252T Secure Microcontroller Module
The DS2252T incorporates the DS5002FP on a 40–pin
SIMM. This includes from 32K bytes to 128K bytes of
secure memory with a real time clock. The memory is
highly secure from tampering and from competitors.
Like other products in the family, the D2252T has a data
retention period of over 10 years at room temperature.