The R5F211B4SP#U0 is a 16-bit Single-chip Microcomputer fabricated using the high-performance silicon gate CMOS process, embedding the R8C/ Tiny Series CPU core. It implements sophisticated instructions for a high level of instruction efficiency. With 1MB of address space, they are capable of executing instructions at high speed. Furthermore, the R8C/1B Group has on-chip data flash ROM (1kB x 2 blocks).
89 Fundamental instructions
Minimum instruction execution time - 50ns (f(XIN) = 20MHz, VCC = 3 to 5.5V)
Minimum instruction execution time - 100ns (f(XIN) = 10MHz, VCC = 2.7 to 5.5V)
Single-chip operating mode
4 Pins LED drive ports
Clock synchronous serial I/O
UART interface
I²C Bus interface
Clock synchronous serial I/O with chip select (SSU)