UPD720101 데이터 시트보기 (PDF) - NEC => Renesas Technology
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UPD720101 Datasheet PDF : 36 Pages
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µPD720101
2. HOW TO CONNECT TO EXTERNAL ELEMENTS
2.1 Handling Unused Pins
To realize less than 5 ports host controller implementation, appropriate value shall be set to Port No field in EXT1
register. And unused pins shall be connected as shown below.
Pin
DPx
DMx
RSDPx
RSDMx
OCIx
PPONx
Direction
I/O
I/O
O
O
I
O
Connection Method
Tied to "low".
Tied to "low".
No connection (Open)
No connection (Open)
“H” clamp
No connection (Open)
2.2 USB Port Connection
Figure 2-1. USB Downstream Port Connection
Inside-package
DP
Outside-package
DM
RSDP
RS = 36 Ω ± 1%
RSDM
RS = 36 Ω ± 1%
RS + Ron (resistance for driver which is active) = 45 Ω ± 10%
Port: D+
Port: D-
15 kΩ ± 5%
ground
10
Data Sheet S16265EJ4V0DS
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