Data Sheet

Hangzhou Grom Technology Co.,Ltd.
Add: Room800,Building3#,Longtan Rd 16#,Cangqian street, Hangzhou City, China. 311121
Website：www.gromiot.com 5
2. Specifications
2.1. Electrical Characteristics
2.1.1. Absolute Maximum Ratings
Table 2-1. Absolute Maximum Ratings
Parameters Min Max
Power supply range（VCC）
1.75V 3.8V
Pin working voltage range(exclude ADC pin) -0.3V VDD_PADS+0.3
Max driving current of all I/O 200 mA
Max RX RF level +10 dBm
Note:
Absolute Maximum Ratings are the values beyond which damage to the module may
occur. Under no circumstances must the absolute maximum ratings given in this table be
violated. Stresses beyond those listed under "Absolute Maximum Ratings" may cause
permanent damage to the module.
2.1.2. Test Conditions
Table 2-2. Test conditions (unless otherwise stated), VCC = 3.3V, Tamp = 25°C
Parameters Range Unit
TX current (@20dBm) 200 mA
RX current 9.4 mA
Sleeping current <5.0 μA
2.1.3. RF Characteristics
Table 2-3. RF Characteristics
Parameters Test Conditions Range Unit
Frequency Band 2400~2483.5 MHz
Numbers of Channels 16
Channel Interval 5 MHz
Transmitter Output Power -20 to +20 dBm
Receive Sensitivity (90%) -104 dBm
Max data transmit speed 250 kbps