Data Sheet

- 8 -
Parameter
Test Conditions
Range
Unit
Frequency range
2400~2483.5
MHz
Quantity of Channels
16
Channel No.
0B~1A
Hex
Channel spacing
5
MHz
Transmitting power
-9 to +10.0
dBm
Receiving sensitivity
（
99%
）
@IEEE802.15.4
250kpbs
-100
dBm
Rated Input / Output Impedance
For unbalanced output
50
Ω
3.1.4. Processor Characteristics
Table 3-4. Processor Characteristics
Parameter
Test
Conditions
Range
Unit
On-chip flash storage
512K
bytes
On-chip RAM storage
32K(SRAM Retention) +
32K(Without SRAM
Retention)
bytes
Working frequency
48
MHz
3.1.5. Module Interface Characteristics
Table 3-5. Module Interface Characteristics
Parameter
Test Conditions
Range
Unit
UART Max baud rate
115200
bps
The resolution of analog channel
14
Bits/µs
Analog input impedance
>1
MΩ
Analog reference voltage (VREF)
1.2
V
Analog input voltage
0-3.6 V
V
I2C bus maximum clock frequency
400
KHz
GPIO output voltage (logic 0)
-8/ 4 mA
0 ~ 0.2*VDD
V
GPIO output voltage (logic 1)
-8/ 4 mA
0.80*VDD ~ VDD
V
Real-time clock frequency
32.768
KHz
3.2. Physical/Ambient Characteristics
Table 3-6. Physical/Ambient Characteristics