Smart Module Series
SC262R_Series_Hardware_Design 25 / 115
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USB_VBUS
141,
142
PI
Charging power
input.
USB 5 V power
input.
USB/adaptor
insertion detection.
Vmax = 6.2 V
Vmin = 4.35 V
Vnom = 5.0 V
USB_DM
13
AIO
USB 2.0
differential data (-)
USB 2.0 standard
compliant.
90 Ω differential
impedance.
USB_DP
14
AIO
USB 2.0
differential data (+)
USB_ID
16
DI
USB ID detect
High level by
default.
(U)SIM Interfaces
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USIM2_DET
17
DI
(U)SIM2 card
hot-plug detect
V
IL
max = 0.63 V
V
IH
min = 1.17 V
Active low.
Externally pull it up
to 1.8 V.
If it is not used,
keep it open.
This function is
disabled by default
via software.
Cannot be
multiplexed into a
generic GPIO.
USIM2_RST
18
DO
(U)SIM2 card reset V
OL
max = 0.4 V
V
OH
min =
0.8 × USIM2_VDD
Cannot be
multiplexed into
generic GPIOs.
USIM2_CLK
19
DO
(U)SIM2 card
clock
USIM2_DATA
20
DIO
(U)SIM2 card data
V
IL
max =
0.2 × USIM2_VDD
V
IH
min =
0.7 × USIM2_VDD
V
OL
max = 0.4 V
V
OH
min =
0.8 × USIM2_VDD
