RAM: 256x8
Core: 80C51
Speed: 40|20MHz
I/O port: 32
Interface: UART/USART
Peripherals: POR
Mounting Type: Surface Mount
Number of bits: 8bit
Oscillator Type: 内蔵
Operating Voltage: 4.5 to 5.5V
Program Memory Type: No ROM
Operating temperature range: -40 to 85C
