Appendix A Equivalent Circuit - Renesas QB-MINI2 User Manual

The equivalent circuit in MINICUBE2, which is related to the communication interface between MINICUBE2 and
the target system, is shown below. Although an example of the target system circuit connections is presented in this
document, refer to it when determining the parameters during substrate designing.
MINICUBE2 interior
TC7SZ125FU
SN74LVC1T45DCKR
SN74LVC2T45DCUR
SN74LVC2T45DCUR
Remark With 78K0S and 78K0R microcontrollers, pins 3 and 5 are shorted out.
debugging of 78K0 microcontrollers, the following routing is performed when connecting
the 78K0-OCD board.
Pins 3 and 5 are shorted out and assigned to the target system side as DATA pins.
•
Pins 12 and 14 are shorted out and assigned to the target system side as FLMD pins.
•

APPENDIX A EQUIVALENT CIRCUIT

Figure A-1. MINICUBE2 Equivalent Circuit
V
DD
1.5kΩ
47Ω
47Ω
100kΩ
V
DD
100kΩ
100kΩ
User's Manual U18371EJ5V0UM
Target system side
(target connector pin number)
5
2, 7, 9, 12, 14
15
3, 8, 16
During on-chip
173