User's Manual

Class 1 Bluetooth v2.0 Module
User’s Guide
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www.lairdtech.com/bluetooth
11
CONN-GUIDE-BT730_v0.9
3.2 Electrical Specifications
3.2.1 Absolute Maximum ratings
Absolute maximum ratings for supply voltage and voltages on digital and analogue pins of the module are
listed below; exceeding these values will cause permanent damage.
Parameter
Min
Max
Unit
Peak current of power supply
0
200
mA
Voltage at digital pins
-0.4
3.7
V
Voltage at POWER pin
2.9 *
6.0
V
3.2.2 Recommended Operating Parameters
3.2.2.1 Power Supply
Signal
Name
Pin No
I/O
Voltage level
Comments
VCC_VIN
11
I
3.0 V to 5.0 V *
Typ 3.3 V
I
typ
= TBC mA?
GND
1, 12, 15,
20, 34, 36
6 Ground terminals to be attached in
parallel
VCC_3V3
13
O
3.3 V typical
For monitoring only. No current source
Note:
VCC_3V3 refers to internal voltage generated by the LDO inside the module which is typically 3.3V.
Internal LDO drop is 0.2V. So to achieve 3.3V for VCC_3V3 requires VCC_IN of 3.5V. IO voltage levels
follows VCC_3V3.
3.2.2.2 Signal Levels for Interface, PCM, SPI and GPIO
Signal Type
Signal level
Signal level @ 0mA load
Input
VILmin= -0.4V
VILmax=0.8V
VIHmin=2.3V
VIHmax=3.7V
Output
VOLmax=0.2V
VOHmin=3.1V