Overview
The EM357-RTR, produced by Silicon Labs, is a high-performance, integrated ZigBee/802.15.4 System-on-Chip (SoC). This device is designed to provide robust wireless connectivity and advanced processing capabilities, making it ideal for various IoT and wireless sensor network applications. The EM357-RTR features a powerful 32-bit ARM® Cortex-M3 processor, ensuring leading 32-bit processing performance and high efficiency through the Thumb-2 instruction set.
Key Specifications
| Parameter | Value |
|---|---|
| Core Frequency (MHz) | 6, 12, or 24 MHz |
| Flash (kB) | 128 or 192 kB (with optional read protection) |
| RAM (kB) | 12 kB |
| Digital I/O Pins | 24 highly configurable GPIOs with Schmitt trigger inputs |
| Package Type | 7x7 mm 48-pin QFN |
| Power Supply Range (VDD_PADS) | 2.1 – 3.6 V |
| Power Supply Range (VDD_CORE) | 1.18 – 1.32 V |
| Deep Sleep Current | 400 nA (without sleep timer), 800 nA (with sleep timer) |
| RF Transceiver | 2.4 GHz IEEE 802.15.4-2003 transceiver & lower MAC |
| AES Encryption | AES128 encryption accelerator |
Key Features
- 32-bit ARM® Cortex-M3 processor with leading 32-bit processing performance and highly efficient Thumb-2 instruction set.
- 2.4 GHz IEEE 802.15.4-2003 transceiver and lower MAC.
- 128 or 192 kB flash memory with optional read protection.
- 12 kB RAM memory.
- AES128 encryption accelerator for secure data transmission.
- Flexible ADC, UART/SPI/TWI serial communications, and general-purpose timers.
- 24 highly configurable GPIOs with Schmitt trigger inputs.
- 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 a single 24 MHz crystal.
- Support for external power amplifier.
Applications
- Wireless sensor networks.
- IoT devices.
- Smart home automation.
- Industrial automation and control systems.
- Healthcare and medical devices.
- Energy management and smart metering.
Q & A
- What is the core processor of the EM357-RTR?
The EM357-RTR features a 32-bit ARM® Cortex-M3 processor.
- What are the available flash memory options for the EM357-RTR?
The EM357-RTR comes with 128 or 192 kB of flash memory, with optional read protection.
- How many GPIO pins does the EM357-RTR have?
The EM357-RTR has 24 highly configurable GPIOs with Schmitt trigger inputs.
- What is the operating voltage range of the EM357-RTR?
The EM357-RTR operates within a voltage range of 2.1–3.6 V.
- Does the EM357-RTR support AES encryption?
Yes, the EM357-RTR includes an AES128 encryption accelerator.
- What type of RF transceiver does the EM357-RTR use?
The EM357-RTR uses a 2.4 GHz IEEE 802.15.4-2003 transceiver and lower MAC.
- What is the package type of the EM357-RTR?
The EM357-RTR is packaged in a 7x7 mm 48-pin QFN package.
- What are the typical current consumption values for the EM357-RTR in different modes?
The EM357-RTR consumes approximately 27.5 mA at 12 MHz and 28.5 mA at 24 MHz in active mode, and 400 nA (without sleep timer) or 800 nA (with sleep timer) in deep sleep mode.
- Does the EM357-RTR support external power amplifiers?
Yes, the EM357-RTR supports external power amplifiers.
- What are some common applications of the EM357-RTR?
The EM357-RTR is commonly used in wireless sensor networks, IoT devices, smart home automation, industrial automation, healthcare devices, and energy management systems.
