Path:OKDatasheet > Catalog Datasheet > Atmel Datasheet > T89C51RD2-3CUC-L
T89C51RD2-3CUC-L spec: 0 to 25MHz flash programmable 8-bit microcontroller, 80C52 compatible, 8051 pin and instruction compatible, 256 bytes RAM, EEPROM 2Kbytes, flash 64Kbytes