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Product Overview:
These MCUs are ideal for low-cost networking applications. They integrate the IT800 power line modem developed by YITRAN, which provides communication over power lines using the 120 kHz to 400 kHz (FCC, ARIB) or 20 kHz to 80 kHz (CENELEC A) or 95 kHz to 125 kHz (CENELEC B) frequency band and achieves data transfer rates of up to 7.5 kbps. The IT800 technology has been standardized by HomePlug Command and Control, and Echonet. The MCUs can run a software library for the Data Link Layer (layer 2 of the OSI model) for “Protocol agnostic” solution, and a software library for the Network Layer (layer 3 of the OSI model) e.g. for AMR (Automatic Meter Reading) or Street lighting applications. Maximum operating frequency is 15.36 MHz when using a PLL Synthesizer. A 64-pin package is available.
Key Features:
- Data rate
FCC/ARIB :
7.5Kbps(SM : Standard mode)
5.0Kbps(RM : Robust Mode)
1.25Kbps(ERM : Extremely Robust Mode)
CENELEC Indoor and Outdoor :
2.5Kbps(RM : Robust Mode)
0.625Kbps(ERM : Extremely Robust Mode) - Modulation
High performance Spread Spectrum Technology (Differential Code Shift Keying- DCSK) - Adaptive rate control
Transmission mode (data rate) is automatically selected, depending on channel condition. - Frequency Band
FCC/ARIB: 100-400kHz
CENELEC: 20-80 kHz(outdoor), 95-125 kHz(indoor) - Channel Access Protocol
CSMA / CA
(Carrier Sense Multiple Access / Collision Avoidance) - Resend
Acknowledged and Unacknowledged - Area
EU (European), Japan (Far East) and US (rest of the world)
Specification | Notes | |
Functions | Power Line Control | |
Operating Frequency | Outside 5.12MHz Inside 46.08MHz(IT800) 15.36MHz(M16C) | PLL is built in. |
Package | 64pin LQFP | PIN configuration is almost the same as IT800 |
Power Supply | 3.3V | Voltage Down Converter is built in(--> 2.5V) |
Power Consumption | 231mW(TYP) | |
Built in modules | IT800 Logic + AFE M16C * Flash Memory : 96KByte * Peripheral : Timer : 16Bit * 5 WDT : 15Bit * 1 Interrupt : 3 from outside, 18 from inside, 7Levels UART : 3ch / SIO : 1ch / Several IO Ports RAM : 24KByte ROM : 96KByte | |