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參數(shù)資料
| 型號(hào)： | DS2252T |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Secure Microcontroller Module(安全的微控制器模塊) |
| 中文描述： | 8-BIT, MICROCONTROLLER, SMA40 |
| 封裝： | SIMM-40 |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | DS2252T |
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DS2252T
Secure Microcontroller Module
DS2252T
021998 1/15
FEATURES
8051 compatible microcontroller for secure/sensitive
applications
– 32K, 64K, or 128K bytes 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 key generator
– SDI Self Destruct Input
– Improved security over previous generations
– Protects memory contents from piracy
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
PACKAGE OUTLINE
40–PIN SIMM
1
20
21
40
DESCRIPTION
The DS2252T is an 8051 compatible microcontroller
based on nonvolatile RAM technology. It is designed for
systems that need to protect memory contents from dis-
closure. This includes key data, sensitive algorithms,
and proprietary information of all types. Like other mem-
bers of the Secure Microcontroller family, it provides full
compatibility with the 8051 instruction set, timers, serial
port, and parallel I/O ports. By using NV RAM instead of
ROM, the user can program, then reprogram the micro-
controller while in–system. This allows frequent chang-
ing of sensitive processes with minimal effort. The
DS2252T provides an array of mechanisms to prevent
an attacker from examining the memory. It is designed
to resist all levels of threat including observation, analy-
sis, and physical attack. As a result, a massive effort
would be required to obtain any information about
memory contents. Furthermore, the “Soft” nature of the
DS2252T allows frequent modification of secure
information. This minimizes that value of any informa-
tion that is obtained.
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| DS2422 | 1K-Bit 1-Wire RAM with Counters(帶計(jì)數(shù)器的1K位1線串行RAM) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2252T_06 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Soft Microcontroller Module |
| DS2252T_1 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Secure Microcontroller Module |
| DS2252T08-08 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| DS2252T128-08 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
| DS2252T-128-12 | 功能描述:模塊化系統(tǒng) - SOM RoHS:否 制造商:Digi International 外觀尺寸:ConnectCore 9P 處理器類型:ARM926EJ-S 頻率:150 MHz 存儲(chǔ)容量:8 MB, 16 MB 存儲(chǔ)類型:NOR Flash, SDRAM 接口類型:I2C, SPI, UART 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 尺寸:1.97 in x 1.97 in x 6.1 in |
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