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H330S Hardware User Manual
Page 16 of 44
4.2.2 Description of Pins
The logic signal lever of H330S series is 1.8V. Pins of H330S series are described in the table below:
Pin #
Pin Name
I/O
Reset
Value
Idle
Value
Description
Power Supply
59
VBAT
I
Main power supply, voltage range: 3.3V ~
4.2V.
60
VBAT
I
61
VBAT
I
62
VBAT
I
64
VPA
O
Test pin for power supply of RF power
amplifier .Idle state in actual use.
1
VTRX
O
Test pin for transceiver power supply .
Idle state in actual use
46
VIO
O
1.8V voltage output inside the modules.
47
VRTC
I/O
Backup battery input/output.
Power ON/OFF Signal
48
POWER_OFF
I
PU
PU
Power off control signal, internal 4.7K
pull-up resistor
49
POWER_ON
I
PU
PU
Power on control signal, internal 200K
pull-up resistor
Reset Signal
77
RESET_ALL_N
I
PU
PU
External reset signal input, internal 200K
pull-up resistor
USIM Interface
4
USIM_CD
I
PU
PU
Insert USIM card to test; active low;
Internal 390K pull-up resistor.
5
USIM_VCC
O
USIM card power supply: 1.8V or 3.0V
6
USIM_RST
O
PP
PP
USIM card reset signal.
7
USIM_CLK
O
PP
PP
USIM card clock signal.
8
USIM_DATA
I/O
PU
PU
USIM card data signal, internal 4.7K
pull-up resistor.
