R8C module Rev. C ================= Note: the board can be either host-powered (+5V from USB) or self-powered (external 6..35 V supply or vehicle KL30). Depending on the configuration, the following components are needed: 1) R8C Core (always fitted) RefDes Component R1 4.7 kOhm 5% (0603) R2 4.7 kOhm 5% (0603) R9 330 Ohm 5% (0603). Change value to set LED brightness. C5 470 nF X7R (0805) C6 100 nF X7R (0603) C7 10 nF X7R (0603) C8 100 nF X7R (0603) L2 TDK MMZ2012Y202B or similar (0805) (ferrite bead 2 kOhm / 400 mA, connects ADref to VDD) IC1 Renesas R8C/34 (QFP-48) (use R5F21348GJFP or similar) D2 LED green (1206 or MiniTopLED) Q1 Murata CSTCR or CSTCE resonator * 16 MHz CSTCE16M0V53C * 18.432 MHz CSTCE18M4V53C * 20 MHz CSTCE20M0V53C JP1 pin header 1x24 JP2 pin header 1x24 JP4 pin header 2x3 or open (flash programming connector) 2) USB interface (fit these if USB needed) Close SJ1, SJ2 to connect the FTDI to the R8C controller. RefDes Component R5 4.7 kOhm 5% (0603) R6 1 MOhm 5% (0805) R7 10 kOhm 5% (0603) R8 10 kOhm 5% (0603) R10 330 Ohm 5% (0603). Change value to set LED brightness. R11 330 Ohm 5% (0603). Change value to set LED brightness. C9 10 nF X7R (0603) C10 100 nF X7R (0603) C11 100 nF X7R (0603) C12 4,7 nF X7R (0805) C13 470 nF X7R (0805) IC3 FTDI FT232RL (SSOP28) LED2 LED green (1206 or MiniTopLED) (RxD active) LED3 LED red (1206 or MiniTopLED) (TxD active) JP5 Cypress 32005-201 or similar (mini USB socket type B) 3) USB Host Power (fit these if board is USB host powered) RefDes Component L1 TDK MMZ2012Y202B or similar (0805) (ferrite bead 2kOhm / 400mA, connects USB VDD to board VDD) 4) Voltage regulator (fit these if board is self-powered RefDes Component C1 1 nF C0G (0805) C2 47 µF / 25 V (Tantal size D/E, V) C3 100 nF X7R (0603) C4 470 nF X7R (0805) IC2 Infineon TLE7270-2D (TO252-5) D1 S1J or similar (DO-214AC) JP3 pin header 1x2 *** NOTE: *** *** *** *** DO NOT APPLY ANY POWER TO JP3 WHEN CONFIGURED FOR HOST POWER *** *** OPERATION! THIS COULD DAMAGE THE BOARD OR YOUR PC. *** *** However, the voltage regulator may be fitted during host *** *** powered operation. It is not damaged by the external voltage. *** *** *** *** DO NOT FIT L1 WHEN BOARD IS SELF-POWERED! THIS WILL BACKFEED *** *** VDD INTO YOUR PC'S USB PORT. *** *** *** *** Remember to configure the USB decriptors in the FTDI chip *** *** according to your power configuration. *** Components sorted by value: Amount Value RefDes 3 330 Ohm 5% (0603) R9, R10, R11 1 4.7 kOhm 5% (0603) R1, R2, R5 2 10 kOhm 5% (0603) R7, R8 1 1 MOhm 5% (0805) R6 1 1 nF C0G (0805) C1 1 4.7 nF X7R (0805) C12 2 10 nF X7R (0603) C7, C9 5 100 nF X7R (0603) C3, C6, C8, C10, C11 3 470 nF X7R (0805) C4, C5, C13 1 47 µF / 25 V (Tantal D/E, V) C2 2 TDK MMZ2012Y202B or similar (0805) L1, L2 1 Renesas R5F21348GJFP (R8C/34 QFP-48) IC1 1 Infineon TLE7270-2D (TO252-5) IC2 1 FTDI FT232RL IC3 1 S1J (DO-214AC) D1 2 LED green (1206 or MiniTopLED) LED1, LED2 1 LED red (1206 or MiniTopLED) LED3 1 Murata CSTCE18M4V53C Q1 1 Pfostenleiste 1x2 JP3 2 Pfostenleiste 1x24 JP1, JP2 1 Buchse Mini-USB B 32005-201 JP5 2023-05-21 ps