DS2252T

安全微控制器模块

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产品详情

8051-compatible microcontroller for secure/sensitive applications:
- 32, 64, or 128kbytes of nonvolatile SRAM for program and/or data storage
- In-system programming via on-chip serial port
- Capable of modifying its own program or data memory in the end system
Firmware security features:
- Memory stored in encrypted form
- Encryption using on-chip 64-bit key
- Automatic true random number key generator
- SDI (Self-Destruct Input)
Crashproof operation:
- Maintains all nonvolatile resources for over 10 years in the absence of power
  Power-fail reset
- Early warning power-fail interrupt
- Watchdog timer
- Precision reference for power monitor
Fully 8051-compatible:
- 128-bytes scratchpad RAM
- Two timer/counters
- On-chip serial port
- 32 parallel I/O port pins
Permanently powered real-time clock, accurate to 100^th seconds
Operating ranges:
- 5V ±10%
- 16MHz clock speed (max)
- 0°C to +70°C

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