3851 Datasheet - Renesas

3851 SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

The 3851 group (built-in 24 KB or more ROM) is the 8-bit microcomputer based on the 740 family core technology. The 3851 group (built-in 24 KB or more ROM) is designed for the household products and office automation equipment and includes serial I/O functions, 8-bit timer, I2C-BUS interface, and A-.

3851 Features

* Basic machine-language instructions 71 Minimum instruction execution time 0.5 µs (at 8 MHz oscillation frequency) Memory size ROM 24K to 32K bytes RAM 640 to 1K bytes Programmable input/output ports 34 Interrupts 17 sources, 16 vectors Timers 8-bit X 4 Serial I/O1 8-bit X 1(UART or Clock-syn

3851-Renesas.pdf