Datasheet R8C/M11A Group, R8C/M12A Group R01DS0010EJ0200 Rev.2.00 RENESAS MCU May 31, 2012 1. Overview 1.1 Features The R8C/M11A Group and R8C/M12A Group of single-chip microcontrollers (MCUs) incorporate the R8C CPU core, which provides sophisticated instructions for a high level of efficiency. With 1 Mbyte of address space, the CPU core is capable of executing instructions at high speed. In addition, it features a multiplier for high-speed arithmetic processing. Power consumption is low, and the supported operating modes allow additional power control. These MCUs are designed to maximize EMI/EMS performance. Integration of many peripheral functions on the same chip, including multifunction timer and serial interface, reduces the number of system components. The R8C/M11A Group and R8C/M12A Group include data flash (1 KB 2 blocks). 1.1.1 Applications Home appliances, office equipment, audio equipment, consumer products, etc. R01DS0010EJ0200 Rev.2.00 Page 1 of 45 May 31, 2012R8C/M11A Group, R8C/M12A Group 1. Overview 1.1.2 Differences between Groups Table 1.1 lists the Specification Comparison between R8C/M11A Group and R8C/M12A Group. The explanations in 1.1.3 and subsequent sections apply to the R8C/M12A Group specifications only, unless otherwise specified. Table 1.1 Specification Comparison between R8C/M11A Group and R8C/M12A Group Item Function R8C/M11A Group R8C/M12A Group Interrupts External interrupt inputs 6 (INT 3, key input 3) 8 (INT 4, key input 4) I/O ports Number of pins 14 20 Non-provided pins: P1 0/AN0/TRCIOD/KI0 P3 3/IVCMP3/TRCCLK/INT3 P3 4/IVREF3/TRCIOC/INT2 P3 5/TRCIOD/KI2/VCOUT3 P4 2/TRBO/TXD0/KI3 P4 5/INT0/ADTRG Number of CMOS I/O ports 11 17 Non-provided ports: P1 0, P3 3, P3 4, P3 5, P4 2, P4 5 Number of high-current drive 5 8 ports Non-provided ports: P3 3, P3 4, P3 5 A/D converter Number of A/D channels 5 channels 6 channels Non-provided port: AN0 Comparator B Number of channels Comparator B1 Comparator B1, comparator B3 R01DS0010EJ0200 Rev.2.00 Page 2 of 45 May 31, 2012