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General Description

The Ember EM358x is a fully integrated System-on-Chip that integrates a 2.4 GHz, IEEE 802.15.4-2003-compliant transceiver, 32-bit ARM? CortexTM-M3 microprocessor, flash and RAM memory, and peripherals of use to designers of ZigBee-based systems.

Complete System-on-Chip

- 32-bit ARM? Cortex -M3 processor

- 2.4 GHz IEEE 802.15.4-2003 transceiver & lower MAC

- 256 or 512 kB flash, with optional read protection

- 32 or 64 kB RAM memory

- AES128 encryption accelerator

- Flexible ADC, UART/SPI/TWI serial communications, and general purpose timers

- Optional USB serial communications

- 24 highly configurable GPIOs with Schmitt trigger inputs

Industry-leading ARM? Cortex -M3 processor

- Leading 32-bit processing performance

- Highly efficient Thumb-2 instruction set

- Operation at 6, 12, or 24 MHz

- Flexible Nested Vectored Interrupt Controller

Low power consumption, advanced management

- RX Current (w/ CPU): 27 mA

- TX Current (w/ CPU, +3 dBm TX): 31 mA

- Low deep sleep current, with retained RAM and GPIO: 1.0 μA without/1.25 μA with sleep timer

- Low-frequency internal RC oscillator for low-power sleep timing

- High-frequency internal RC oscillator for fast (110 μs) processor start-up from sleep

Exceptional RF Performance

- Normal mode link budget up to 103 dB; configurable up to 110 dB

- –100 dBm normal RX sensitivity; configurable to –102 dBm (1 PER, 20 byte packet)

- +3 dB normal mode output power; configurable up to +8 dBm

- Robust Wi-Fi and Bluetooth coexistence

Innovative network and processor debug

- Packet Trace Port for non-intrusive packet trace with Ember development tools

- Serial Wire/JTAG interface

- Standard ARM debug capabilities: Flash Patch & Break-point; Data Watchpoint & Trace; Instrumentation Trace Macrocell

Application Flexibility

- Single voltage operation: 2.1–3.6 V with internal 1.8 and 1.25 V regulators

- Optional 32.768 kHz crystal for higher timer accuracy

- Low external component count with single 24 MHz crystal

- Support for external power amplifier

- Small 7x7 mm 48-pin QFN package