RH850/F1Kx, RH850/F1K Series Hardware Design Guide
R01AN3841ED0110 Rev. 1.10 Page 2 of 108
August 8, 2019
Table of Contents
1. Power Supply ................................................................................................................... 8
1.1 Power Supply Overview of RH850/F1KM-S1 ............................................................................ 8
1.1.1 Power Supply Pin Overview of RH850/F1KM-S1 ............................................................... 8
1.1.2 Power Supply Pin Configuration of RH850/F1KM-S1 ........................................................ 9
1.1.3 Power Supply Pin Architecture of RH850/F1KM-S1 .......................................................... 9
1.1.4 Power Supply Timing of RH850/F1KM-S1 ........................................................................ 12
1.2 Power Supply Overview of RH850/F1KM-XX .......................................................................... 14
1.3 Power Supply Overview of RH850/F1KM-S4 .......................................................................... 15
1.3.1 Power Supply Pin Overview of RH850/F1KM-S4 ............................................................. 15
1.3.2 Power Supply Pin Configuration of RH850/F1KM-S4 ...................................................... 16
1.3.3 Power Supply Pin Architecture of RH850/F1KM-S4 ........................................................ 16
1.3.4 Power Supply Timing of RH850/F1KM-S4 ........................................................................ 27
1.4 Power Supply Overview of RH850/F1KH-D8 .......................................................................... 29
1.4.1 Power Supply Pin Overview of RH850/F1KH-D8 .............................................................. 29
1.4.2 Power Supply Pin Configuration of RH850/F1KH-D8 ...................................................... 30
1.4.3 Power Supply Pin Architecture of RH850/F1KH-D8 ........................................................ 30
1.4.4 Power Supply Timing of RH850/F1KH-D8 ........................................................................ 41
1.5 Power Supply Overview of RH850/F1K ................................................................................... 44
1.5.1 Power Supply Pin Overview of RH850/F1K ...................................................................... 44
1.5.2 Power Supply Pin Configuration of RH850/F1K .............................................................. 45
1.5.3 Power Supply Pin Architecture of RH850/F1K ................................................................. 45
1.5.4 Power Supply Timing of RH850/F1K ................................................................................. 51
1.6 Principle Capacitor Placement at REGVCC of RH850/F1Kx, RH850/F1K Series ................ 53
2. Minimum External Components ................................................................................... 54
2.1 Minimum External Components of RH850/F1KM-S1 ............................................................. 54
2.2 Minimum External Components of RH850/F1KM-XX ............................................................ 57
2.3 Minimum External Components of RH850/F1KM-S4 ............................................................. 58
2.4 Minimum External Components of RH850/F1KH-D8 ............................................................. 61
2.5 Minimum External Components of RH850/F1K ..................................................................... 64
3. Oscillator ......................................................................................................................... 67
3.1 Recommended Oscillator Circuit ............................................................................................ 67
3.1.1 Main Oscillator .................................................................................................................... 67
3.1.2 Sub Oscillator ...................................................................................................................... 68
3.2 Recommended Oscillator Layout ............................................................................................ 69
4. Device Pins ..................................................................................................................... 70
4.1 X1 ................................................................................................................................................ 70
4.1.1 Direct Clock Supply to X1 .................................................................................................. 70
4.2 RESET ........................................................................................................................................ 71
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