3851 Overview
The 3851 group (built-in 24 KB or more ROM) is the 8-bit microputer 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-D converter.
3851 Key Features
- 71 Minimum instruction execution time
- 0.5 µs
- 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-synchronized) Serial I/O2
- 8-bit X 1(Clock-synchronized) Multi-master I2C-BUS interface
- 1 channel PWM