User's Manual

Specifications
ZigBit™ 2.4 GHz Wireless Modules 3-8
8226C–MCU Wireless–09/10
Current consumption actually depends on multiple factors, including but not limited to, the board design
and materials, BitCloud settings, network activity, EEPROM read/write operations. It also depends on
MCU load and/or peripherals used by an application.
3.1.3 RF Characteristics
3.1.4 ATmega1281V Microcontroller Characteristics
3.1.5 Module Interfaces characteristics
Table 3-3. RF Characteristics
Parameters Condition Range Unit
Frequency Band 2.4000 to 2.4835 GHz
Numbers of Channels 16
Channel Spacing 5 MHz
Transmitter Output Power Adjusted in 16 steps -17 to +3 dBm
Receiver Sensitivity PER = 1%
On-Air Data Rate 250 kbps
TX Output/ RX Input Nominal Impedance For balanced output 100 Ω
Table 3-4. ATmega1281V Characteristics
Parameters Condition Range Unit
On-chip Flash Memory size 128K bytes
On-chip RAM size 8K bytes
On-chip EEPROM size 4K bytes
Operation Frequency 4 MHz
Table 3-5. Module Interfaces characteristics
Parameters Condition Range Unit
UART Maximum Baud Rate 38.4 kbps
ADC Resolution/ Conversion Time
In single conversion
mode
10/200 Bits/µs
ADC Input Resistance >1 MΩ
ADC Reference Voltage (VREF) 1.0 to V
CC
-3 V
ADC Input Voltage 0 - VREF V
I
2
C Maximum Clock 222 kHz
GPIO Output Voltage (High/Low) -10/ 5 mA 2.3/ 0.5 V
Real Time Oscillator Frequency 32.768 kHz