Product Manual

MeiGProductManualofSLM750Module
SLM750ModuleHardwareDesign Page 19, total 84 pages
STATUS
61 OD Indicate the
module operating
status
Driving current
should be less
than 0.9mA
Require external
pull-up. If unused,
keep it open
NET_MODE
5 OD Indicate the
module network
registration status
VOHmin=1.35V
VOLmax=0.45V
1.8V power
domain, require
external pull-up. If
unused, keep it
open
NET_STATU
S
6 OD Indicate the
module network
running status
VOHmin=1.35V
VOLmax=0.45V
1.8V power
domain, require
external pull-up. If
unused, keep it
open
USB interface
Pin name Pin
number
I/O Description DC features Note
USB_VBUS
71 PI USB detection
Vmax=5.25V
Vmin=3.0V
Vnorm=5.0V
USB_DP 69 IO USB differential
data positive
signal
Compliant with
USB2.0 standard
specification
Require
differential
impedance of 90Ω
USB_DM 70 IO USB differential
data negative
signal
Compliant with
USB2.0 standard
specification
Require
differential
impedance of 90Ω
USIM card interface
Pin name Pin
number
I/O Description DC features Note
USIM_DATA 15 IO USIM card data
bus
1.8V USIM:
V
IL
max=0.6V
V
IH
min=1.2V
V
OL
max=0.45V
V
OH
min=1.35V
3.0V USIM:
V
IL
max=1.0V
V
IH
min=1.95V
V
OL
max=0.45V
V
OH
min=2.55V
-
USIM_CLK 16 DO USIM card clock
line
1.8V USIM:
V
OL
max=0.45V
V
OH
min=1.35V
3.0V USIM:
V
OL
max=0.45V
-