Laird BTM410, Hardware Integration Manual

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BTM410/411
Bluetooth
®
AT Data Module Hardware Integration Guide
Americas: +1-800-492-2320 Option 2
Europe: +44-1628-858-940
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www.lairdtech.com/bluetooth
8 CONN-HIG-BTM410-411
Pin # Signal Description Voltage Specification
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
1. Unused pins may have internal connections and must not be connected.
2. Reset input is active low. Input is pulled up to VDD_IN via 22k. Minimum reset pulse width is 5 ms.
3. Pins 8 – 11 (SPI related) are only for Laird internal production purposes.
4. 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 Max
VDD_USB (USB compatibility not required) 1.7 3.6
VDD_USB (USB compatibility required) 3.1 3.6
VDD_IO 1.7 3.3
VDD_IN 3.0 3.3
2.4 Voltage Specifications
Table 2-4: Voltage specifications (VUSB)
Min Typ Max
Input Voltage Levels
Vih
0.7VDD_USB
Vil 2.7<VDD_USB<3.0
1.7<VDD_USB<1.9 -0.4
-0.4 +0.8
-0.4
Output Voltage Levels (1.7<VDD_USB<1.9)
Voh (Iout = -4mA)
VDD_USB – 0.4
Vol (Iout = 4mA) 0.4
Output Voltage Levels (2.7<VDD_USB<3.0)
Voh (Iout = -4mA)
VDD_USB – 0.2
Vol (Iout = 4mA) 0.2
Note: VDD_USB must be connected to power the USB and UART interfaces.