The Toll Control Unit (TCU) and Communication Control Unit (CCU) are the key units in the overall charging solution. The charging communication protocol for China electric vehicles (EV) is GBT 27930, and the European charging communication protocol is IEC 61851-24, DIN 70121 and ISO 15118. A CCU with RH850/F1K automotive microcontroller (MCU) has up to six channels of CAN interface to support multiple protocols. The RA6M3 32-bit MCU realizes charging pile HMI, metering and billing, payment, data encryption and decryption, control for charging equipment start and stop, communication with the internet of a vehicle's platform, and other functions.

System Benefits​:

  • RA6M3 offers TFT, Ethernet, security, large embedded RAM, CAN, and USB High-Speed (HS) to fully realize TCU function.
  • The RH850/F1K high-end automotive MCU is ideal for multiple protocol charging.
  • High-reliability buck and LDO provide a stable power supply.
  • Photocoupler and Nor Flash are used for an integrated system.




  • EV charger pile

Winning Combinations Interactive Diagram

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 CN077 cn077 CN077 CCU CCU CCU Sheet.192 Block.120 Sheet.194 Sheet.195 Sheet.196 Sheet.197 Sheet.198 Ground (earth).210 Sheet.211 Sheet.212 Sheet.213 Sheet.214 Shunt.215 Sheet.216 Sheet.217 Sheet.218 Shunt.219 Sheet.220 Sheet.221 Sheet.222 Sheet.223 Sheet.224 Sheet.225 Sheet.226 Connector 1.227 Connector 1.228 Sheet.229 Sheet.230 Sheet.231 Sheet.232 Sheet.233 Sheet.234 Sheet.235 Sheet.237 Sheet.238 Sheet.239 Sheet.240 Sheet.241 Charger Module Charger Module Charger Module Stop Stop Stop Fault Fault Fault Power Power Power Charging Charging Charging AUX Power AUX Power AUX Power Temperature Temperature Temperature GUN Status GUN Status GUN Status 12V 12V 12V Sheet.251 Sheet.252 Connector 1.253 Sheet.254 Sheet.255 Sheet.256 Sheet.257 Sheet.258 Sheet.259 Sheet.260 Sheet.261 2 Communication Lines B.795 2 2 2 Sheet.265 S+ S- S+ S- S+ S- GB/T27930 GB/T27930 GB/T27930 ISO15118 DIN70121 ISO15118 DIN70121 ISO15118 DIN70121 2 Communication Lines B.795 2 2 2 Sheet.272 Sheet.273 Sheet.274 2 Communication Lines B.795 2 2 2 Sheet.278 800x60 LCD Display 800x60 LCD Display 800x60 LCD Display Credit Card Scanner Credit Card Scanner Credit Card Scanner 4G Module 4G Module 4G Module SDRAM SDRAM SDRAM LDO 1 LDO LDO RTC RTC RTC TCU TCU TCU Buck Buck Buck QSPI Flash QSPI Flash QSPI Flash Sheet.298 Sheet.299 Sheet.300 Sheet.301 Sheet.302 Sheet.303 Sheet.304 Sheet.305 Sheet.306 Sheet.307 Sheet.308 Sheet.309 Sheet.310 Sheet.311 Sheet.312 Sheet.313 Sheet.314 Sheet.315 Sheet.316 Connector 1.317 Connector 1.318 Sheet.319 Connector 1.320 4.2V/Amax 4.2V/Amax 4.2V/Amax 3.3V/0.5Amax 3.3V/0.5Amax 3.3V/0.5Amax Sheet.323 Sheet.324 Sheet.325 Sheet.326 Sheet.327 Sheet.328 Sheet.329 2 2 2 2 Sheet.332 2 2 2 2 Sheet.335 3.3V/0.5Amax 3.3V/0.5Amax 3.3V/0.5Amax AUX AUX AUX Power Meter (CN204) Power Meter (CN204) Power Meter (CN204) LDO 2 LDO LDO PLC Communication PLC Communication PLC Communication PHY PHY PHY Photocoupler Photocoupler x2 Photocoupler x2 Photocoupler x2 Photocoupler x2 Photocoupler x2 Charging Plug/Gun Charging Plug/Gun Charging Plug/Gun Photocoupler-x2 Photocoupler x2 Photocoupler x2 MCU RH850/F1K MCU MCU 12-bit DAC 12-bit DAC 12-bit DAC GPIO GPIO GPIO CAN CAN CAN CAN CAN CAN UART UART UART CAN CAN CAN MCU.342 RA6M3 MCU MCU I2C I2C I2C Ethernet Ethernet Ethernet UART UART UART CAN CAN CAN SPI SPI SPI GLCDC GLCDC GLCDC CTSU CTSU CTSU SCI ISO7816 SCI ISO7816 SCI ISO7816 UART UART UART External BUS External BUS External BUS
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