Telit Wireless Solutions LM940 Design Guide

LM940 Hardware Design Guide
1VV0301352 Rev. 18 Page 19 of 75 2022-01-04
Not Subject to NDA
Pin
Signal
I/O
Function
Type
Comment
17
SIMCLK2
O
Clock output to an external UIM2 card
1.8 / 2.85V
7
SIMRST2
O
Reset output to an external UIM2 card
1.8 / 2.85V
Digital I/O (GPIOs)
3
GPIO_01
I/O
General purpose I/O Can be used as
SIMIN1
1.8V
5
GPIO_02
I/O
General purpose I/O Can be used as
SIMIN2
1.8V
44
GPIO_03
I/O
General purpose I/O
1.8V
46
GPIO_04
I/O
General purpose I/O
1.8V
Internal 1.8V
Pull-up
45
GPIO_05
I/O
General purpose I/O
1.8V
47
GPIO_06
I/O
General purpose I/O
1.8V
49
GPIO_07
I/O
General purpose I/O
1.8V
51
GPIO_08
I/O
General purpose I/O
1.8V
Control Signal
1
PCIE_WAKE_N
O
PCIe wake-up
1.8V
20
W_DISABLE_N
I
RF disable
Power ON Trigger
Open drain
Internal VBATT Pull-up
42
WAN_LED_N
O
LED control
Open drain
Miscellaneous Functions
11
VREG_L6_1P8
O
Reference Voltage
1.8V
Power
22
SYSTEM_RESET_N
I
Reset Input
1.8V
I2C Interface
30
I2C_SCL
O
I2C Clock
1.8V
32
I2C_SDA
I/O
I2C Data
1.8V
Power Supply
2
VBATT
I
Power supply
Power
24
VBATT
I
Power supply
Power
39
VBATT
I
Power supply
Power
41
VBATT
I
Power supply
Power
52
VBATT
I
Power supply
Power

Telit Wireless Solutions LM940 Specifications

General

Brand	Telit Wireless Solutions
Model	LM940
Category	Wireless modules
Language	English