BTM44X Datasheet, PDF(7/28 Page) Laird Tech Smart Technology – modules from Laird Technologies have been designed to meet the needs of developers

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BTM44X Datasheet, PDF (7/28 Pages) Laird Tech Smart Technology – modules from Laird Technologies have been designed to meet the needs of developers

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BTM44x

Datasheet

Signal

35 Unused

36 Unused

37 Unused

38 Unused

39 Unused

40 Unused

41 GND

42 GPIO1 / UART_RI

43 GPIO7 / UART_DTR

44 GPIO8 / UART_DSR

45 GND

46 D-

47 D+

48 GPIO6

49 GPIO5

50 GPIO3

Description

See note 3

I/O for host

Not used for AT module variants

I/O for host- RF_Active

I/O for host â WLAN_Active

I/O for host â BT_Priority

Voltage Specification

VIO

VUSB

VIO

Notes:

Unused pins may have internal connections and must not be connected.

Reset input is active low. Input is pulled up to VDD_IN via 22k. Minimum reset pulse width is 5ms.

Pins 25-37 should be left not connected on modules with integrated antenna (BTM441/3)

Pins 8 â 11 (SPI related) are only for Laird internal production purposes.

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/wireless

Americas: +1-800-492-2320

Europe: +44-1628-858-940

Hong Kong: +852 2923 0610

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