HSPA/UMTS/GSM/GPRS Module Series
UG96&UG95&M95 R2.0 Compatible Design
UG96&UG95&M95 R2.0_Compatible_Design
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26
RESERVED
/
/
16
SIM2_DATA
IO
(U)SIM2 card data
signal.
1.8V/3.0V
27
RESERVED
/
/
17
SIM2_CLK
DO
(U)SIM2 card
clock signal.
1.8V/3.0V
1.8V/3.0V
28
RESERVED
/
/
18
SIM2_VDD
PO
Power supply for
(U)SIM2 card.
1.8V/3.0V.
29
VDD_EXT
PO
1.8V
19
VDD_EXT
PO
2.8V
30
DTR
DI
Data terminal
ready.
Sleep mode
control.
1.8V power
domain.
20
DTR/
SIM1_
PRESEMCE
1)
DI
Data terminal
ready/
(U)SIM1 card
insertion
detection.
These functions
can be switched
through AT
command.
31
GND
/
Ground
/
/
/
/
32
VBAT_BB
PI
Power supply
for module
baseband part.
3.3V~4.3V
/
/
/
/
33
VBAT_BB
PI
Power supply
for module
baseband part.
3.3V~4.3V
/
/
/
/
34
RXD
DI
Receive data.
1.8V power
domain.
21
RXD
DI
Receive data.
2.8V power
domain.
35
TXD
DO
Transmit data.
1.8V power
domain.
22
TXD
DO
Transmit data.
2.8V power
domain.
36
CTS
DO
Clear to send.
1.8V power
domain.
23
CTS
DO
Clear to send.
2.8V power
domain.
37
RTS
DI
Request to
send.
1.8V power
domain.
24
RTS
DI
Request to send.
2.8V power
domain.