Sim2 M80 Dokumentacja Pobierz pdf (Strona 26)

M80 Hardware Design

M80_HD_V1.0 - 26 -

VOLmax=0.15*VDD_

EXT

SIM1 interface

PIN NAME

PIN

NO.

I/O

DESCRIPTION

DC

CHARACTERISTICS

COMMENT

SIM1_

VDD

56

O

Power supply for SIM

card

The voltage can be

selected by software

automatically. Either

1.8V or 3V.

All signals of SIM

interface should be

protected against ESD

with a TVS diode

array.

Maximum cable

length is 200mm from

the module pad to

SIM card holder.

SIM1_

DATA

54

I/O

SIM data

3V：

VOLmax=0.4

VOHmin=

SIM1_VDD-0.4

1.8V:

VOLmax=

0.15*SIM1_VDD

VOHmin=

SIM1_VDD-0.4

SIM1_

CLK

55

O

SIM clock

3V：

VOLmax=0.4

VOHmin=

0.9*SIM1_VDD

1.8V:

VOLmax=

0.12*SIM1_VDD

VOHmin=

0.9*SIM1_VDD

SIM1_RST

53

O

SIM reset

3V：

VOLmax=0.36

VOHmin=

0.9*SIM1_VDD

1.8V:

VOLmax=

0.2*SIM1_VDD

VOHmin=

0.9*SIM1_VDD

SIM1_

GND

52

SIM ground

SIM_PRES

ENCE

57

I

SIM card detection

VILmin=-0.3V

VILmax=

0.25*VDD_EXT

VIHmin=

0.75*VDD_EXT

VIHmax=

If unused, keep these

pins open.

Quectel

Confidential

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 87 88

Quectel Cellular Engine 1
Confidential 10

Komentarze do niniejszej Instrukcji

Brak uwag