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EYSMJCS
Control No.
HD-BA-A071063
Pin Descriptions
Terminal
Terminal name
No.
1
GND
2
PIO2/USB_DETACH
3
/RESET
4
USB_D-
5
USB_D+
6
VDD
Notes:
1. Strength pull-downs (pull-ups) are equivalent to a few kOhms resistance, but are more accurately modeled as
a 40uA current drain (source).
2. Weak pull-ups can be thought of 1M Ohm connections to VDD, but are more accurately modeled as a -1uA
current source.
3. Pin 6 (VDD) is used for power supply of BT module. To fill the standard of "Supply voltage ripple and spike
noise", the capacitor, which has the capacity of 2.2uF or more, should be put in the terminal VDD outside as
a bypass capacitor.
Control name
(1/1)
Pin Layout
Input/Output
-
Ground
DETACH signal input
Input
Low
High
Active low RESET signal with internal weak
Input
pull-up
Input/Output
USB data (Negative) input-output
Input/Output
USB data (Positive) input-output
Input
DC3.3V Power supply
TAIYO YUDEN
TAIYO YUDEN Confidential
Description
USB connect
USB disconnect
24-Aug.-2007 Ver.0.1
& Tentative
Remark
Note 1
Note 2
Note 3
38/40
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