MEX-BT4100E/BT4100P/BT4100U/BT4150U
45
Pin No.
Pin Name
I/O
Description
61
I2C_SDA
I/O
Two-way data bus with the EEPROM
62
DVCC1.2
-
Power supply terminal (+1.2V)
63 to 68
D0 to D5
I/O
Two-way data bus terminal Not used
69
DVSSCOM
-
Ground terminal
70
D6
I/O
Two-way data bus terminal Not used
71
DVCC3.3IO
-
Power supply terminal (+3.3V)
72 to 80
D7 to D15
I/O
Two-way data bus terminal Not used
81, 82
A0, A1
O
Address signal output terminal Not used
83
DVSSCOM
-
Ground terminal
84 to 86
A2 to A4
O
Address signal output terminal Not used
87
DVCC1.2
-
Power supply terminal (+1.2V)
88
DVCC3.3IO
-
Power supply terminal (+3.3V)
89 to 97
A5 to A13
O
Address signal output terminal Not used
98
DVSSCOM
-
Ground terminal
99 to 103
A14 to A18
O
Address signal output terminal Not used
104
DVCC3.3IO
-
Power supply terminal (+3.3V)
105 to
108
DT10_DATA1 to
DT10_DATA4
-
Not used
109
OE
O
Output enable signal output Not used
110
WE
O
Write enable signal output Not used
111
DT10_CLK
-
Not used
112
DT10_CE
-
Not used
113
DOWNLD_DET
O
Serial
fl
ash downloader status detection signal output terminal
114
NCO
-
Not used
115
USB1_OVR
I
USB over current detection signal input from the DC/DC converter “L”: over current
116
USB1_ON
O
Power supply on/off control signal output to the DC/DC converter “H”: power on
117
DVCC1.2
-
Power supply terminal (+1.2V)
118
DVSSCOM
-
Ground terminal
119
DVSSPULL
-
Ground terminal
120
DVCC1.2PULL
-
Power supply terminal (+1.2V)
121
DVCC1.2
-
Power supply terminal (+1.2V)
122
DVSSCOM
-
Ground terminal
123
AVDD3.3USB
-
Power supply terminal (+3.3V)
124
AVSS3.3USB
-
Ground terminal
125
DP
I/O
Two-way USB data (positive) with the USB connector
126
TXRTUNE
I
External resistor connection terminal for USB
127
DM
I/O
Two-way USB data (negative) with the USB connector
128
AVSS3.3USB
-
Ground terminal
129
AVDD3.3USB
-
Power supply terminal (+3.3V)
130
XO
O
System clock output terminal (12 MHz)
131
AVSS3.3USBC
-
Ground terminal
132
XI
I
System clock input terminal (12 MHz)
133
DVSSUSB
-
Ground terminal
134
DVDD1.2USB
-
Power supply terminal (+1.2V)
135
ANALOGTEST
-
Not used
136
DVSSCOM
-
Ground terminal
137
DVCC1.2
-
Power supply terminal (+1.2V)
138 to
141
(N.C.)
-
Not used
142
AVSSADC
-
Ground terminal
143
AVDD3.3DC
-
Power supply terminal (+3.3V)
144
MODE0
I
Operation mode setting terminal Fixed at “L” in this unit
