芯谷芯片解密研究所专业承接MDT1005解密等MDT系列单片机解密项目合作，为方便客户在解密合作中更好的理解解密技术的实现，更好的对解密难易程度以及解密报价进行评估参考，这里我们提供对MDT1005单片机的基本特征介绍，供客户进行参考借鉴。
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关于MDT1005
This ROM-Based 8-bit micro-controller uses a fully static CMOS design technology combines higher speed and smaller size with the low power and high noise immunity of CMOS.On chip memory system includes 0.5 K bytes of ROM, and 32 bytes of static RAM.
MDT1005 FEATURE：
Fully CMOS static design
8-bit data bus
On chip ROM size : 512 words
Internal RAM size : 32 bytes
(25 general purpose registers, 7 special registers)
36 single word instructions
14-bit instructions
2-level stacks
Operating voltage : 2.3V ~ 6.3 V
Operating frequency : 0 ~ 20 MHz
The most fast execution time is 200 ns under 20 MHz in all single cycle instructions except the branch instruction
Addressing modes include direct, indirect and relative addressing modes
Power-on Reset
Power edge-detector Reset
Sleep Mode for power saving
8-bit real time clock/counter(RTCC) with 8-bit programmable prescaler
4 types of oscillator can be selected by programming option:
RC－Low cost RC oscillator
LFXT－Low frequency crystal oscillator
XTAL－Standard crystal oscillator
HFXT－High frequency crystal oscillator
4 oscillator start-up time can be selected by programming option:
150 ms, 20 ms, 40 ms, 80 ms
On-chip RC oscillator based Watchdog Timer(WDT) can be operated freely
Pull up resistors for the following pins :PA0~PA3, PB0~PB7, /MCLR, RTCC
Pull down resistors for the following pins :PA0~PA3, PB0~PB7, RTCC
12 I/O pins with their own independent direction control
