Computime Limited CT-EM2503 ユーザーズマニュアル

 

 
 

 ZigBee-Ready RF Transceiver Modules 

 

 

Computime Ltd. All rights reserved 

Confidential 

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The CT-EM250 SoC RF Transceiver Modules is a compact surface mounted module 
specially designed for Ember’s ZigBee™ protocol stack for wireless networks, 
EmberZNet, based on IEEE 802.15.4 standard in the 2.4GHz world-wide ISM band. It 
provides 16 channels and compliant PHY and MAC layers. The complete module is 
only 20.32 x 25.52 x 3 mm（integrated antenna version）and 20.32 x 19.53 x 3 mm 
(External Antenna version). They both integrate a 2.4GHz, IEEE 802.15.4-compliant 
transceiver with a 16-bit XAP2b microprocessor. They consist of integrated Flash and 
RAM memory and peripherals. A number of peripherals such as GPIO, UART, SPI, 
I2C, ADC, and general purpose timers are integrated to support user-defined 
applications. 
 

Home 
automation & 
building control 
 

Home 
appliances & 
alarms 
 

Monitoring of 
remote 
systems 
 

Security 
systems 
& lighting 
controls 
 

Sensor data 
capture 
in embedded 
networks 

 

 

 

 

 

 

 

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  Complete ZigBee-ready module with or without integrated antenna 

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  IEEE 802.15.4 compliant PHY and MAC layer 

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  12MHz XAP2b 16-bit microcontroller core 

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  128kB Flash and 5kB RAM, emulation EEPROM 

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 17 

GPIO 

, 4 channel 12 bit ADC 

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 UART, 

SPI, 

I

2

C and debug interfaces 

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  External 32.768 kHz real time clock or internal RC oscillator for timer 

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  High performance direct sequence spread spectrum (DSSS) RF transceiver 

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  16 channels in the 2.4 GHz ISM band 

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  on-chip regulator for 2.1-3.6V operation, two sleep low power modes