Hello,
How should unused pins of the RI-STU-MRD2 be handled during design?
(pull-up/pull-down/open?)
Pin Pin Name Function(1) Description
3 Reserved Do not connect
7 USB_D- B USB data
8 USB_D+ B USB data
10 Reserved Do not connect
11 SIG_OUT_0 O Programmable signal output 0
12 SIG_OUT_1 O Programmable signal output 1 or TXCT- in RFM mode
13 SIG_IN_0 I Programmable signal input 0 or RXDT in RFM mode
14 SIG_IN_1 I Programmable signal input 1 or RXCK in RFM mode
18 Reserved Do not connect
20 Reserved Do not connect
23 USB_PUR O USB pullup resistor
28 USB_VBUS P +5 V from USB port
Best Regards,
Seishin
