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CEL and Digi-Key introduce the MeshConnect™ EM357 Module






The CEL MeshConnect™ EM357 module (ZICM357P2) is based on the Ember EM357 system-on-chip (SoC). The module includes a high performance Renesas power amplifier that increases power out to +20 dBM, making it one of the most powerful modules on the market. With its 120 dB link budget, the module provides range up to 2.5 miles, ensuring reliable transmission even in harsh environments and reducing the number of nodes needed in the network. The increased output power also provides better interior penetration from devices installed outside the home such as smart meters that need to connect to devices inside the home. The MeshConnect EM357 module also integrates 1 MB of flash memory, which enables over-the-air programming updates in the field.

The MeshConnect EM357 module is compliant with ZigBee Alliance specifications and IEEE 802.15.4, making it applicable for all ZigBee applications and profiles. The SoC consists of an RF transceiver with a baseband modem, a hardwired MAC and an embedded 32-bit ARM® Cortex™-M3 microcontroller with internal RAM (12 kB) and flash (192 kB) memory. The SoC provides numerous general-purpose I/O pins and peripheral functions such as timers and UARTs enabling customers to access a rich mix of on-chip functionality.

CEL's MeshConnect™ line of 802.15.4/ZigBee products delivers industry-leading range, high performance, and a rich feature set at low cost. CEL's design examples, reference designs, and engineering support help customers get their product designs to market quickly. Key applications include ZigBee Pro Smart Energy focused applications: thermostats, meters, and in-home displays. Also included are LED lighting controls, solar/wind power, HVAC control, and security system applications. MeshConnect certified and qualified modules enable customers to reduce their design and certification costs of development as well as development risk, while reducing time to market.



Features

Transmit power: +20 dBm
Range: up to 2.5 miles
Network speed: 250 Kbps
RF link budget: up to +120 dB
1MB integrated Flash memory for over the air program updates
Advanced power management scheme w/deep sleep mode
Inverted-F PCB antenna with optional U.FL external antenna
Software support: EmberZnet PRO™ (ZigBee PRO)
Mesh, point-to-point, and point-to-multipoint networks
Sensitivity: -100 dBm
15 RF channels
Integrated MCU functionality:
32-bit ARM® Cortex™-M3
Up to 23 GPIO pins
192 kB Flash; 12 kB RAM
SPI master/slave, TWI, UART
Timers, serial wire/JTAG interface
5-channel, 14-bit ADC