The MCU lineup of Renesas includes the RL78/G14 Group, the RL78/G1F Group , the RX13T Group and the RX23T Group with built-in MCU peripheral functions such as reset IC, which provide low lost small pin-count solutions suitable for inverter control in refrigerator applications. Their on-chip features allow refrigerators to be more eco-friendly. For refrigerator system control, the RL78/G13 Group, the RX130 Group, the RX230 Group and the RA4M1 Group are ideal because they incorporate a variety of A/D converters to precisely control the internal temperature.

Refridgerator (Low-End)

System Block Diagram

Recommended Products
Block Semiconductor Device Recommended Products Features
System Control System control, operation MCU RX130 Group
RX230 Group
Enhanced capacitive touch function, 5V operation
Enhanced DSP/FPU, Connectivity (USB), HMI (Capacitive Touch), Security, Low power consumption, 5V
RL78/G13 Group 5V operation, Rich line-up, can be used in a wide variety of applications

RA4M1 Group

Arm Cortex-M4 with LCD Controller and Capacitive Touch for HMI
Compressor Control Compressor control MCU RX23T Group
RX13T Group
32-bit MCU including on-chip FPU enables to easily program complex inverter control algorithms
32-bit MCU including on-chip FPU, single motor control applications, reduce board area and BOM costs
RL78/G14 Group
RL78/G1F Group
Three-phase complementary PWM output, Rich line-up
Multifunctional microcontrollers with enhanced functionality suitable for sensor-less BLDC motor control
Sensor Output CMOS Op-amp READ2303G
Full range input/output, high slew rate
Low power consumption, high slew rate
PFC Power Supply PFC IC R2A20113A Critical conduction mode single
MCU I/F in Control Unit Photocoupler (standard) PS23xx Series
PS28xx Series
High isolation voltage (5kVr.m.s.), 4p-LSOP, Ta=115°C
High isolation voltage (2.5kVr.m.s.), 4p-SSOP, Ta=100°C
High isolation voltage (5kVr.m.s.), 4p-LSSOP, Ta=115°C
Comparator μPC277, μPC177 High input impedance, Low consumption current
Related Software
Related Boards
Name Part No.
R2A20113A evaluation board * -
24V Motor Control Evaluation System for RX23T RTK0EM0006S01212BJ

*:Please contact your sales representative or contact us directly.