Model:AT80C51SND1C-ROTIL BRAND:Microchip description:IC MCU 8BIT ROMLESS 80TQFP pack:tray SERIES:80C status:Discontinued Core processor:80C51 Core specifications:8-bit Speed:40MHz Peripherals:音频,I2S,MP3,PCM,POR,WDT I/O number:44 Program storage capacity:- Program memory type:ROMless EEPROM capacity:- RAM size:2.25K x 8 Voltage - powered by:2.7V ~ 3.3V Data converter:A/D 2x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:80-LQFP Supplier device packaging:80-TQFP(14x14)