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MB91401
13
USB IF (5 pin)
Pin name Pin no.
Polarity
I/O
Circuit
Function/application
UDP 61 I/O C
USB data D + (differential) pin
I/O signal pin on the plus side of the USB data.
Use the LSI with 25 Ω to 30 Ω (27 Ω recommended)
external series load resistors, 1.5 kΩ pull-up resistors and
about 100 kΩ resistors. Input “0” when the USB macro is
unused.
UDM 183 I/O C
USB data D − (differential) pin
I/O signal pin on the minus side of the USB data.
Use the LSI with 25 Ω to 30 Ω (27 Ω recommended)
external series load resistors, 1.5 kΩ pull-up resistors and
about 100 kΩ resistors. Input “0” when the USB macro is
unused.
USBINS 182 IN D
USB insert input pin
USB socket input detection pin. Be sure to input “0” when
not using USB macro.
UCLK48 6 IN D
48 MHz input (external clock input) pin
This pin inputs an external 48-MHz clock signal.
The USB macro operates based on this clock. Input the
clock with high accuracy (as not only LSI but also a device)
more than 2500 ppm. Input “0” when the USB macro is un-
used.
UCLKSEL 124 IN D
USB clock select pin
Clock select pin using for USB macro
“0” : Using internal clock
“1” : Using UCLK48
Prelminary
2004.11.12