芯片解密分类
S3F9454解密,橙盒科技三星单片机解密
对S3F9454芯片解密,首先需要对芯片内部结构及其加解密性质进行技术分析和理解,对于客户来说,这个分析理解的过程,能够帮助其更好地对芯片解密的技术实现和解密难易程度、解密报价等信息进行参考对比,更好的对自己的解密项目进行监控。而对于解密工程师来说,这个技术分析与理解的过程,能够帮助其更好的理解芯片的加解密手法,从而选择更合适可靠的解密方案。
因此,这里,我们首先提供对S3F9454芯片的功能特征进行技术分析。
S3F9454 FEATURES
CPU
SAM88RCRI CPU core
The SAM88RCRI core is low-end version of the current SAM87 core.
Memory
2/4-Kbyte internal program memory
208-byte general purpose register area
Instruction Set
41 instructions
The SAM88RCRI core provides all the SAM87 core instruction except the word-oriented instruction, multiplication, division, and some one-byte instruction.
Instruction Execution Time
400 ns at 10 MHz fOSC (minimum)
Interrupts
4 interrupt sources with one vector
One interrupt level
General I/O
Three I/O ports (Max 18 pins)
Bit programmable ports
8-bit High-speed PWM
8-bit PWM 1-ch (Max: 156 kHz)
6-bit base + 2-bit extension
Built-in reset Circuit
Low voltage detector for safe reset
Timer/Counters
One 8-bit basic timer for watchdog function
One 8-bit timer/counter with time interval modes
A/D Converter
Nine analog input pins
10-bit conversion resolution
Oscillation Frequency
1 MHz to 10 MHz external crystal oscillator
Maximum 10 MHz CPU clock
Internal RC: 3.2 MHz (typ.), 0.5 MHz (typ.) in
VDD = 5 V
Operating Temperature Range
– 40°C to + 85°C
Operating Voltage Range
2.0 V (LVR Level) to 5.5 V
Smart Option
Package Types
– 8-DIP-300
– 8-SOP-225
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