Description
The 3851 group (built-in 24 KB or more ROM) is the 8-bit microcomputer based on the 740 family core technology.
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-synchronized) Serial I/O2 8-bit X 1(Clock-synchronized) Multi-master I2C-BUS interface 1 channel PWM 8-bit X 1 A-D converter 10-bit X 5 channels Watchdog timer 16-bit X 1
Clock generating circuit.
3851-Renesas.pdf
