BTM420 Datasheet, PDF (8/21 Pages) Laird Tech Smart Technology – Changes and Revisions

BTM420/421
Bluetooth^® Data Module Hardware Integration Guide
2.3 Operating Parameters
Table 4: Recommended Operating Conditions
Recommended Operating Conditions
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 5: Logic Levels (VUSB)
Logic Levels (VUSB)
INPUT VOLTAGE LEVELS
V_ih
V_il 2.7 <VDD_USB<3.0
1.7<VDD_USB<1.9
Output Voltage Levels (1.7 <VDD_USB_1.9)
V_oh (lout = -4mA)
V_ol (lout = 4mA)
Output Voltage Levels (2.7<VDD_USB<3.0)
V_oh (lout = -4mA)
V_ol (lout = 4mA)
MIN
TYP
0.7VDD_USB
-0.4
-0.4
VDD_USB – 0.4
VDD_USB – 2.0
Note: VDD_USB must be connected to power the USB and UART interfaces.
MAX
+0.8
+0.4
0.2
Table 6: Logic Levels (VIO)
Logic Levels (VIO)
INPUT VOLTAGE LEVELS
V_ih
V_il 2.7 <VDD_IO<3.0
1.7<VDD_IO<1.9
Output Voltage Levels (1.7 < VDD_IO < 1.9)
V_oh (lout = -4mA)
V_ol (lout = 4mA)
Output Voltage Levels (2.7 < VDd_IO < 3.0)
V_oh (lout = -4mA)
V_ol (lout = 4mA)
MIN
TYP
0.7VDD_IO
-0.4
-0.4
VDD_IO – 0.4
VDD_IO – 0.2
MAX
+0.8
+0.4
0.4
0.2
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