EM260-RTR Ember, EM260-RTR Datasheet - Page 9

• Manufacturer Part Number: EM260-RTR
• Description: IC ZIGBEE SYSTEM-ON-CHIP 40-QFN
• Manufacturer: Ember

Specifications of EM260-RTR

• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: ZigBee™
• Power - Output: -32dBm ~ 3dBm
• Sensitivity: -97dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 30mA
• Current - Transmitting: 34mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 40-QFN
• For Use With: 636-1009 - PROGRAMMER USB FLASH EM250/260
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Other names: 636-1007-2; EM260-RTR

EM260
The MAC interfaces the data memory to the RX and TX baseband modules. The MAC provides hardware-based
IEEE 802.15.4 packet-level filtering. It supplies an accurate symbol time base that minimizes the synchroniza-
tion effort of the software stack and meets the protocol timing requirements.
The EM260 integrates hardware support for a Packet Trace module, which acts as an integrated packet sniffer.
This element allows InSight Desktop, the Ember software IDE, to measure which nodes heard which messages
in network debug operation. The integrated Packet Trace module offloads this functionality from the XAP2b
processor so that tracing is done with minimal impact.
The EM260 integrates a 16-bit XAP2b microprocessor developed by Cambridge Consultants Ltd. This power-
efficient, industry-proven core provides the appropriate level of processing power to meet the needs of the
Ember ZigBee-compliant stack, EmberZNet. The EM260 employs a configurable memory protection scheme
usually found on larger microcontrollers. In addition, the SIF module provides a non-intrusive programming and
debug interface allowing for real-time application debugging.
The EM260 exposes the Ember Serial API over the SPI, which allows application development to occur on a
Host microcontroller of choice. In addition to the SPI, two additional signals, nHOST_INT and nWAKE, provide
an easy-to-use handshake mechanism between the Host and the EM260.
The integrated voltage regulator generates a regulated 1.8V reference voltage from an unregulated supply
voltage. This voltage is decoupled and routed externally to supply the 1.8V to the core logic. In addition, an
integrated POR module allows for the proper cold start of the EM260.
The EM260 contains one high-frequency (24MHz) crystal oscillator and, for low-power operation, a second low-
frequency internal 10 kHz oscillator.
The EM260 contains two power domains. The always-powered High Voltage Supply is used for powering the
GPIO pads and critical chip functions. The rest of the chip is powered by a regulated Low Voltage Supply,
which can be disabled during deep sleep to reduce the power consumption.
120-1003-000D
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