以下我們對SM59D04G2單片機基本功能特征的簡單介紹，僅供參考：

Features
z Operating Voltage: 2.7V ~ 3.6V or 4.5V ~ 5.5V
z General 8052 family compatible
z 12 or 6 clocks per machine cycle
z Frequency runs up to 25MHz
z 16K byte on chip program Flash with In-System
Programming(ISP) and EEPROM capability
z 768 Bytes on-chip expanded RAM with disable
function
z 256 Bytes for standard 8052 RAM.
z External RAM address up to 64KB
z Dual 16-bit Data Pointers (DPTR0 & DPTR1)
z One channel serial peripheral interface (UART)
z Three 16 bit Timers/Counters(Timer 0 , 1, 2)
z Four 8-bit I/O ports for PDIP package
z Four 8-bit I/O ports + one 4-bit I/O ports for PLCC
or QFP package
z Programmable Watchdog Timer (WDT)
z Programmable Counter Array (PCA) for Pulse
Width Modulation (PWM), capture and compare
z External interrupt 0, 1 with two priority level
z Expanded External Interrupt (EEI) interface for
eight more external interrupts.
z ISP service program space configurable in N*512
byte (N=0 to 8) size for IAP application
z Direct and simple ICP programming without
service program
z ALE output select for low EMI
z Clock output as the source for next MCU
z Power Management Unit ( IDLE and STOP mod)
z Code protection function
z Flash Memory Endurance : 100K erase and write

cycles each byte at TA=25℃

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