BTM410 Datasheet, PDF (8/25 Pages) Laird Tech Smart Technology – modules from Laird are designed to meet the needs of developers who wish to add robust

BTM410/411
Bluetooth^® AT Data Module Datasheet
Pin # Signal
Description
Voltage Specification
39 Unused
40 Unused
41 GND
42 GPIO1 / UART_RI
I/O for host
VIO
43 GPIO7 / UART_ DTR I/O for host
VIO
44 GPIO8 / UART_DSR I/O for host
VIO
45 GND
46 D-
Not used for AT module variants
VUSB
47 D+
Not used for AT module variants
VUSB
48 GPIO6
I/O for host - RF_Active
VIO
49 GPIO5
I/O for host - WLAN_Active
VIO
50 GPIO3
I/O for host - BT_Priority
VIO
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 5 ms.
Pins 8 – 11 (SPI related) are only for Laird internal production purposes.
Pins 25-37 should be left not connected on modules with integrated antenna.
2.3 Operating Parameters
Table 2-3: Operating parameters
Operating Condition
Min
VDD_USB (USB compatibility not required)
1.7
VDD_USB (USB compatibility required)
3.1
VDD_IO
1.7
VDD_IN
3.0
Max
3.6
3.6
3.3
3.3
2.4 Voltage Specifications
Table 2-4: Voltage specifications (VUSB)
Input Voltage Levels
Vih
Vil 2.7<VDD_USB<3.0
1.7<VDD_USB<1.9
Output Voltage Levels (1.7<VDD_USB<1.9)
Voh (Iout = -4mA)
Vol (Iout = 4mA)
Output Voltage Levels (2.7<VDD_USB<3.0)
Voh (Iout = -4mA)
Vol (Iout = 4mA)
Min
Typ Max
0.7VDD_USB
-0.4
-0.4
VDD_USB – 0.4
VDD_USB – 0.2
+0.8
-0.4
0.4
0.2
Note: VDD_USB must be connected to power the USB and UART interfaces.
Embedded Wireless Solutions
8
Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
Laird Technologies
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