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最新T89C5115芯片解密分析

时间:2011-04-08 09:38:59

芯片解密过程中,对芯片内部结构及其加解密特征进行技术分析是解密工程师的一项必修课,因为只有充分理解芯片内部结构原理等技术信息,工程师才能准确进行方案开发,确定最可靠、成功率最高的解密方案,最大限度确保解密项目的安全可靠。
T89C5115芯片主要特点:
·80C51 Core Architecture
·256 Bytes of On-chip RAM
·256 Bytes of On-chip ERAM
– 16-KB of On-chip Flash Memory
– Data Retention: 10 Years at 85°C
– Read/Write Cycle: 10K
·2K Bytes of On-chip Flash for Bootloader
·2K Bytes of On-chip EEPROM
– Read/Write Cycle: 100k
·14-sources 4-level Interrupts
·Three 16-bit Timers/Counters
·Full Duplex UART Compatible 80C51
·Maximum Crystal Frequency 40 MHz
– InX2Mode,20MHz(CPUcore,40MHz)
·Three or Four Ports: 16 or 20 Digital I/O Lines
·Two-channel 16-bit PCA with:
– PWM (8-bit)
– High-speed Output
– Timer and Edge Capture
·Double Data Pointer
·21-bit WatchDog Timer (7 Programmable Bits)
·A 10-bit Resolution Analog to Digital Converter (ADC) with 8 Multiplexed Inputs
·Power Saving Modes:
– Idle Mode
– Power-down Mode
·Power Supply: 5V ± 10% (or 3V(1)± 10%)
·Temperature Range: Industrial (-40° to +85°C)
·Packages: SOIC28, PLCC28, VQFP32
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