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41110555
Rev 1.0
November 01, 2017
18
Product Technical Specification
Pad Definition
Pad #
Signal Name
Function
I/O
Active
Low/High
Power
Supply
Domain
Recommendation
for Unused Pads
Type
12
USB_D-
USB Data Negative (Low / Full Speed)
I/O
-
3.3V
Connect to test point
Extension
USB Data Negative (High Speed)
0.38V
13
USB_D+
USB Data Positive (Low / Full Speed)
I/O
-
3.3V
Connect to test point
Extension
USB Data Positive (High Speed)
0.38V
14
NC
Not Connected
Not connected
15
NC
Not Connected
Not connected
16
NC
Not Connected
Not connected
17
NC
Not Connected (Reserved for future use)
Not connected
18
NC
Not Connected (Reserved for future use)
Not connected
19
WAKE-UP
Wake Up
I
H
1.8V
Left Open
Extension
20
NC
Not Connected (Reserved for future use)
Not connected
21
NC
Not Connected
Not connected
22
GNSS_FREQ_OUT 26MHz System Clock Output
O
-
1.8V
Left Open
Extension
23
32K_CLKOUT
32.768kHz System Clock Output
O
-
1.8V
Left Open
Extension
24
ADC1
Analog to digital converter
I
-
1.2V
Left Open
Extension
25
ADC0
Analog to digital converter
I
-
1.2V
Left Open
Extension
26
UIM1_VCC
1.8V USIM1 Power supply
O
-
1.8V
Mandatory connection
Core
27
UIM1_CLK
1.8V USIM1 Clock
O
-
1.8V
Mandatory connection
Core
28
UIM1_DATA
1.8V USIM1 Data
I/O
-
1.8V
Mandatory connection
Core
29
UIM1_RESET
1.8V USIM1 Reset
O
L
1.8V
Mandatory connection
Core
30
GND
Ground
0V
0V
Mandatory connection
Extension
31
NC
Not Connected
Not connected
32
GND
Ground
0V
0V
Mandatory connection
Extension
33
PCM_OUT*
PCM data out
O
-
1.8V
Left Open
Extension
34
PCM_IN*
PCM data in
I
-
1.8V
Left Open
Extension
35
PCM_SYNC*
PCM sync out
I/O
-
1.8V
Left Open
Extension