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三星S3F8285单片机解密

来源:www.pcbdate.cn作者:Admin|longrenpcb@126.com更新时间:2010年07月09日

 

 

佳创科技长期从事业界疑难芯片/单片机解密技术研究、芯片解密成本降低技术手法研究、芯片解密100%成功率技术研究、单片机软件解密技术研究等领域,特别是对芯片解密中的过错攻击技术、硬件安全分析、UV 攻击技术、EEPROM Flash技术分析、安全保护位置的查找以及侵入式攻击与非侵入式攻击技术,均拥有透彻的理解和丰富的实战应用经验,经过多次反复实验,可以为每一款芯片提供最具经济价值、最具可靠性、最具成本控制优势的解密技术手法。

下面,我们将针对S3F8285单片机的主要性能特征进行简单介绍,供广大客户及其他各类技术工程师在芯片解密项目合作中进行参考借鉴。
    S3F8285  FEATURES
  CPU
  SAM88 RC CPU core
  Memory
  Program Memory (ROM)
  - 64K × 8 bits program memory
  (S3C828B/F828B)
  - 32K × 8 bits program memory
  (S3C8289/F8289)
  - 16K × 8 bits program memory
  (S3C8285/F8285)
  - Internal flash memory (program memory)
  Sector size: 128 bytes
  10 years data retention
  Fast programming time:
  + chip erase: 50ms
  + sector erase: 10ms
  + byte program: 30μs
  User programmable by 'LDC' instruction
  Endurance: 10,000 erase/program cycles
  Sector(128 bytes) erase available
  Byte programmable
  External serial programming support
  Expandable OBPTM(on board program)
  sector
  Data Memory (RAM)
  - Including LCD display data memory
  - 2614 × 8 bits data memory (S3C828B/F828B)
  - 1078 × 8 bits data memory (S3C8289/F8289)
  - 566 × 8 bits data memory (S3C8285/F8285)
  Instruction Set
  78 instructions
  Idle and stop instructions added for power-down modes
  65 I/O Pins
  I/O: 25 pins
  I/O: 40 pins(Sharing with LCD signal outputs)
  Interrupts
  8 interrupt levels and 18 interrupt sources
  Fast interrupt processing feature
  8-Bit Basic Timer
  Watchdog timer function
  4 kinds of clock source
  8-Bit Timer/Counter A
  Programmable 8-bit internal timer
  External event counter function
  PWM and capture function
  8-Bit Timer/Counter B
  Programmable 8-bit internal timer
  Carrier frequency generator
  16-Bit Timer/Counter 0
  Programmable 16-bit internal timer
  16-Bit Timer/Counter 1
  Programmable 16-bit internal timer
  External event counter function
  PWM and capture function
  Watch Timer
  Interval time: 3.91mS, 0.25S, 0.5S, and 1S at 32.768 kHz
  0.5/1/2/4 kHz Selectable buzzer output
  LCD Controller/Driver
  32 segments and 8 common terminals
  1/2, 1/3, 1/4, and 1/8 duty selectable
  Internal resistor circuit for LCD bias
  Analog to Digital Converter
  8-channel analog input
  10-bit conversion resolution
  ? 25uS conversion time
  UART
  Full-duplex serial I/O interface
  Four programmable operating modes
  8-bit Serial I/O Interface
  8-bit transmit/receive mode
  8-bit receive mode
  LSB-first or MSB-first transmission selectable
  Internal or External clock source
  Battery Level Detector
  3-creteria voltage selectable (2.2V, 2.4V, 2.8V)
  En/Disable by software for current consumption
  Low Voltage Reset(LVR)
  Criteria voltage: 2.2V
  En/Disable by smart option(ROM address: 3FH)
  Two Power-Down Modes
  Idle: only CPU clock stops
  Stop: selected system clock and CPU clock stop
  Oscillation Sources
  Crystal, ceramic, or RC for main clock
  Main clock frequency: 0.4 MHz – 11.1MHz
  32.768 kHz crystal oscillation circuit for
  sub clock
  Instruction Execution Times
  360nS at 11.1 MHz fx(minimum)
  Operating Voltage Range
  2.0 V to 3.6 V at 0.4 – 4.2MHz
  2.7 V to 3.6 V at 0.4 – 10.0MHz
  3.0 V to 3.6 V at 0.4 – 11.1MHz
  Operating Temperature Range
  -25°C to +85°C
  Package Type
  80-QFP-1420C, 80-TQFP-1212
  Smart Option
  Low Voltage Reset (LVR) level and
  enable/disable are at your hardwired option
  (ROM address 3FH)
  ISP related option selectable
   

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