Telit Wireless Solutions FN990 Series User Manual

FN990
Family Hardware Design Guide
1VV0301752 Rev. 3 Page 50 of 92 2022-10-07
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6.3.2. SIM Interface
The FN990 modem family supports an external SIM interface. (1.8 V or 2.95 V)
Note: UIM2 can be assigned as optional eSIM. In that case, UIM2 can’t
be used as an external SIM interface.
Pin Signal I/O Function Type Comment
SIM Card Interface 1
36 UIM1_VCC
O
Supply output for an external UIM1 card 1.8V / 2.95V Power
34 UIM1_DATA
I/O
Data connection with an external UIM1 card
1.8V / 2.95V Internal 20k
PU
32 UIM1_CLK
O
Clock output to an external UIM1 card
1.8V / 2.95V
30 UIM1_RESET_N
O
Reset output to an external UIM1 card
1.8V / 2.95V
66 UIM1_PRESENT
I
UIM1 Card Present Detect 1.8V
Internal 100k
PU
Active LOW*
SIM Card Interface 2
48 UIM2_VCC O Supply output for an external UIM2 card
1.8V / 2.95V
Power
42 UIM2_DATA
I/O
Data connection with an external UIM2 card
1.8V / 2.95V Internal 20k
PU
44 UIM2_CLK
O
Clock output to an external UIM2 card
1.8V / 2.95V
46 UIM2_RESET_N
O
Reset output to an external UIM2 card
1.8V / 2.95V
40 UIM2_PRESENT
I
UIM2 Card Present Detect 1.8V
Internal 100k
PU
Active LOW*
Table 34: SIM Interface Signals

Telit Wireless Solutions FN990 Series Specifications

General

Brand	Telit Wireless Solutions
Model	FN990 Series
Category	Computer Hardware
Language	English