Description
The R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, R8C/L3AA Group, R8C/L35B Group, R8C/L36B Group, R8C/L38B Group, and R8C/L3AB Group of single-chip MCUs incorporate the R8C CPU core, which implements a powerful instruction set for a high level of efficiency and supports a 1 Mbyte address space, allowing execution of instructions at high speed. In addition, the CPU core integrates 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, helps reduce the number of system components.The R8C/L35A Group, R8C/L36A Group, R8C/L38A Group, and R8C/L3AA Group have data flash (1 KB × 4 blocks) with the background operation (BGO) function.
- Central processing unit
- R8C CPU core
- Number of fundamental instructions: 89
- Minimum instruction execution time:
- 50 ns (f(XIN) = 20 MHz, VCC = 2.7 to 5.5 V)
- 200 ns (f(XIN) = 5 MHz, VCC = 1.8 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)
- Voltage detection circuit
- Power-on reset
- Voltage detection 3 (detection level of voltage detection 0 and voltage detection 1 selectable)
- Programmable I/O ports
- CMOS I/O ports: 52, selectable pull-up resistor
- Clock generation circuits
- 4 circuits: XIN clock oscillation circuit
- XCIN clock oscillation circuit (32 kHz)
- 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, low-speed clock, high-speed on-chip oscillator, low-speed on-chip oscillator), wait mode, stop mode
