Footprint and Pinout

Footprint

Pinout

Pin #

Name

Type

Description

1

N/C

No Contact

Float

2

GND

Ground

Ground

3

PROG_RESET1

SWD Prog

External reset pin, active low

4

PROG_SWCLK1

SWD Prog

Module SWCLK programming

5

PROG_SWDIO1

SWD Prog

Module SWDIO programming

6

MOD_CTS

I

UART interface: Module CTS

7

MOD_RTS

O

UART interface: Module RTS

8

MOD_RXIN

I

UART interface: Module RX

9

MOD_TXOUT

O

UART interface: Module TX

10

GND

Ground

Ground

11

MOD_TX_DEBUG2

O

UART interface: Module Debug TX

12

MOD_RX_DEBUG2

I

UART interface: Module Debug RX

13

MOD_WAKE_STATUS/GPIO

O

Module Status Indicator

14

+1V8_IO

Output voltage

Power digital IO (1.8V)

15

V+

Input voltage

Supply Voltage (3.1-4.5V)

16

N/C

No Contact

Float

17

GND

Ground

Ground

18

SQN_UART1_RTS3

O

UART Interface: SQN_1 Debug RTS

19

SQN_UART1_CTS3

I

UART interface: SQN_1 Debug CTS

20

SQN_UART1_RX3

I

UART interface: SQN_1 Debug RX

21

SQN_UART1_TX3

O

UART interface: SQN_1 Debug TX

22

nBOOT

I

N/C = Boot Normally, GND = Bootloader

23

MOD_HOST_NOTIFY/IO0

O

Module Notify Host Indicator

24

MOD_WAKE_REQUEST/IO1

I

Module Wake Request from Host

25

GND

Ground

Ground

26

SQN_UART2_CTS4

I

UART interface: SQN_2 Debug CTS

27

SQN_UART2_RTS4

O

UART interface: SQN_2 Debug RTS

28

SQN_UART2_TX4

O

UART interface: SQN_2 Debug TX

29

3V3_IO1

Output Voltage

Power Digital IO (3.3V)

30

SQN_UART2_RX4

I

UART interface: SQN_2 Debug RX

1Module programming pins. Module comes pre-programmed with latest FW and bootloader. Float if not used.

2Debug UART for module, Baud: 115200 (development only)

3Debug UART1 for SQN chipset. Baud: 115200 (development only)

4Debug UART2 for SQN chipset. Baud: 921600 (development only)

•All not connected pins should be floated.

•Default module UART baud rate is 115200 8n1 w/ flow control

•1.8V IO used for logic level translation on SQN UART debug (development only). DO NOT use as 1.8V power source.

•3.3V IO used for logic level translation for module UART. Low output current, NOT recommended for 3.3V power source other than lower current consumption level translation. Connect to programmer VCC if programming module.

•V+ lower than 3.5V will cause host logic level to be lower than 3.3V.

•RF connection is via U.FL connector.

Pin profile

The board uses 2x, 15 pin, TMS-115-02-F-S, connectors for mating to the host board.

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