General description
The SN260 integrates a 2.4GHz, IEEE 802.15.4-compliant transceiver with a 16-bit network processor (XAP2b core) to run EmberZNet, the ZigBee-compliant network stack. The SN260 exposes access to the EmberZNet API across a standard SPI module, allowing application development on a Host processor. This means that the SN260 can be viewed as a ZigBee peripheral connected over a SPI. The XAP2b microprocessor is a power-optimized core integrated in the SN260. It contains integrated Flash and RAM memory along with an optimized peripheral set to enhance the operation of the network stack.

FEATUREs
■ Integrated 2.4GHz, IEEE 802.15.4-compliant transceiver:
    – Robust RX filtering allows co-existence with IEEE 802.11g and Bluetooth devices
    – - 97.5dBm RX sensitivity (1% PER, 20byte packet)
    – + 3dBm nominal output power
    – Increased radio performance mode (boost mode) gives –98.5dBm sensitivity and +5dBm transmit power
    – Integrated VCO and loop filter
    – Secondary TX-only RF port for applications requiring external PA.
■ Integrated IEEE 802.15.4 PHY and MAC
■ Dedicated peripherals and integrated memory
■ EmberZNet™ ZigBee®-compliant stack running on the dedicated network processor
■ Controlled by the Host using the EmberZNet™ Serial Protocol (EZSP)
    – Standard serial interface (allows for connection to a variety of Host micro controllers)
■ Non-intrusive debug interface (SIF)
■ Integrated hardware and software support for InSight Development Environment
■ Provides integrated RC oscillator for low power operation
■ Three sleep modes:
    – Processor idle (automatic)
    – Deep sleep—1.0µA
    – Power down—1.0µA
■ Watchdog timer and power-on-reset circuitry
■ Integrated AES encryption accelerator
■ Integrated 1.8V voltage regulator
■ Compatible with Ember EM250