UMTS/HSPA+ Module Series
UG89 Hardware Design
UG89_Hardware_Design 17 / 73
If unused, keep it
open.
GND
3, 5, 8,37,
39, 41, 52,
58~62,
64~67, 73
82~84,
89~97,
106
110~120
Ground
Turn On/Off
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PON
7
DI
Turn on the module
High pulse.
Set this signal low
before and after the
startup impulse.
PWRKEY
79
DI
Turn on/off the
module
V
IL
max=0.5V
VBAT power domain.
RESET_N
34
DI
Reset the module
Active Low.
V
IL
max=0.5V
If unused, keep it
open.
Status Indication
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
STATUS
53
DO
Indicate the
module
’s operation
status
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
USB Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USB_VBUS
47
AI
USB connection
detection
Vmax=5.25V
Vmin=3.0V
Vnorm=5.0V
Typical: 5.0V
If unused, keep it
open.
USB_DP
48
IO
USB differential data
bus (+)
USB 2.0 compliant;
90Ω differential
impedance;
If unused, keep it
open.
USB_DM
49
IO
USB differential data
bus (-)
USB 2.0 compliant;
90Ω differential
impedance.
If unused, keep it
