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Single-Chip Solution for ML7222 ZigBee
The ML7222 is a bi-directional wireless communication LSI that uses the 2.4GHz/ISM band based on a mixture of the low power-consumption RF analog base-band logic processes employed in the ML7065. The ML7222, which can accommodate software up to upward software complying with the ZigBee alliance as well as IEEE802.15.4, provides a single-chip solution for IEEE802.15.4/ZigBee. The ML7222 uses OKI's original 8-bit low power consumption RISC CPU as the built-in MCU and is equipped with enhanced peripheral functions.
Features and Specifications
Frequency band |
2.4GHz ISM Band (2400-2483.5MHz) |
|---|---|
Channels: |
16 (channels 11 to 26) |
Modulation Method: |
O-QPSK (Offset-QPSK) |
Data Rate: |
250kbps |
Chip Rate: |
2M chips |
Diffusion System: |
DSSS (Direct Sequence Spread Spectrum) |
Transmit Carrier Level: |
1mW (supporting 4-level attenuation) |
Receive Carrier Level: |
-90dBm typ. (1% Packet Error Rate) |
Internal MCU: |
OKI's original 8-bit MCU |
Internal Memories: |
128-Kbyte programmable RAM 12-Kbyte data RAM |
Peripherals: |
PIO x 16, 10-bit A/D ports x 4, Serial I/F x 2 External nonvolatile memory I/F (I2C or SPI) |
Supply Voltage: |
2.1 to 3.6V (3.0V typ) |
Operating Temperature: |
-40 to +85°C |
Supply Current: |
26mA (RX), 24mA (TX), 10μA (Sleep) |
Package: |
52-pin plastic VQFN |
Functional Block Diagram
Examples of Application
Bi-directional wireless remote controllers for household electrical appliances and facilities, networking of sensors, inspection meters, measuring instruments, and control equipment, communication equipment, game machines, and so on
- Networking of various equipment controls such as sensors and monitors
- Home office control that centrally manages various lighting units and air conditioners
- Automatic readers of various meters
- Building management system using wireless monitoring network
- Wireless remote controller with bi-directional communication capability
External Dimensions
