R8C/33T Group R01DS0046EJ0110 Rev.1.10 RENESAS MCU Apr 26, 2011 1. Overview 1.1 Features The R8C/33T Group of single-chip MCUs incorporates the R8C CPU core, employing sophisticated instructions for a high level of efficiency. With 1 Mbyte of address space, and it is capable of executing instructions at high speed. In addition, the CPU core boasts a multiplier for high-speed operation 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, including multifunction timer and serial interface, reduces the number of system components. The R8C/33T Group has data flash (1 KB 4 blocks) with the background operation (BGO) function. 1.1.1 Applications Electronic household appliances, office equipment, audio equipment, consumer equipment, etc. R01DS0046EJ0110 Rev.1.10 Page 1 of 47 Apr 26, 2011R8C/33T Group 1. Overview 1.1.2 Specifications Tables 1.1 and 1.2 outline the Specifications for R8C/33T Group. Table 1.1 Specifications for R8C/33T Group (1) Item Function Specification CPU Central processing R8C CPU core unit Number of fundamental instructions: 89 Minimum instruction execution time: 50 ns (f(XIN) = 20 MHz, VCC = 2.7 V to 5.5 V) 200 ns (f(XIN) = 5 MHz, VCC = 1.8 V to 5.5 V) Multiplier: 16 bits 16 bits 32 bits Multiply-accumulate instruction: 16 bits 16 bits + 32 bits 32 bits Operation mode: Single-chip mode (address space: 1 Mbyte) Memory ROM, RAM, Refer to Table 1.3 Product List for R8C/33T Group. Data flash Power Supply Voltage detection Power-on reset Voltage circuit Voltage detection 3 (detection level of voltage detection 0 and voltage Detection detection 1 selectable) I/O Ports Programmable I/O Input-only: 1 pin ports CMOS I/O ports: 27, selectable pull-up resistor High current drive ports: 27 Clock Clock generation 3 circuits: XIN clock oscillation circuit, circuits High-speed on-chip oscillator (with frequency adjustment function), Low-speed on-chip oscillator Oscillation stop detection: XIN clock oscillation stop detection function Frequency divider circuit: Dividing selectable 1, 2, 4, 8, and 16 Low power consumption modes: Standard operating mode (high-speed clock, high-speed on-chip oscillator, low-speed on-chip oscillator), wait mode, stop mode Interrupts Number of interrupt vectors: 69 External Interrupt: 7 (INT 4, Key input 4) Priority levels: 7 levels Watchdog Timer 14 bits 1 (with prescaler) Reset start selectable Low-speed on-chip oscillator for watchdog timer selectable DTC (Data Transfer Controller) 1 channel Activation sources: 22 Transfer modes: 2 (normal mode, repeat mode) Timer Timer RA 8 bits 1 (with 8-bit prescaler) Timer mode (period timer), pulse output mode (output level inverted every period), event counter mode, pulse width measurement mode, pulse period measurement mode Timer RB 8 bits 1 (with 8-bit prescaler) Timer mode (period timer), programmable waveform generation mode (PWM output), programmable one-shot generation mode, programmable wait one- shot generation mode Timer RC 16 bits 1 (with 4 capture/compare registers) Timer mode (input capture function, output compare function), PWM mode (output 3 pins), PWM2 mode (PWM output pin) R01DS0046EJ0110 Rev.1.10 Page 2 of 47 Apr 26, 2011