Silicon Labs RD-0020-0601
- Part No.:
- RD-0020-0601
- Manufacturer:
- Silicon Labs
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
RD-0020-0601.pdf
- Description:
- DEMO KIT ZB LIGHT EM357 PCB ANT
- Quantity:
- Payment:

- Shipping:

Inventory:2,732
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Product details
Overview
RD-0020-0601 from Silicon Laboratories is a high-performance, integrated ZigBee/IEEE 802.15.4 System-on-Chip featuring a 32-bit ARM® Cortex-M3 processor, 128 kB flash, 12 kB RAM, AES128 encryption accelerator, and a 2.4 GHz transceiver with configurable RX sensitivity down to –102 dBm and TX output up to +8 dBm. It serves as the central wireless SoC in battery-powered smart home sensors and industrial monitoring nodes.
For engineers reviewing the RD-0020-0601 datasheet, RD-0020-0601 pinout, RD-0020-0601 application, or RD-0020-0601 equivalent, key selection considerations include deep-sleep current (400 nA), 24-pin GPIO flexibility with Schmitt-trigger inputs, RF coexistence robustness against Wi-Fi/Bluetooth, and support for external power amplifiers in compact 7×7 mm QFN48 packaging.
Technical Context
The RD-0020-0601 integrates an ARM Cortex-M3 CPU running at 6/12/24 MHz with nested vectored interrupt controller (NVIC) and memory protection unit (MPU), coupled directly to a fully compliant IEEE 802.15.4-2003 PHY/MAC radio subsystem. Its dual-oscillator architecture combines a 24 MHz crystal for main system timing and optional 32.768 kHz crystal for precision sleep timers, while internal 1.8 V and 1.25 V regulators enable single-supply 2.1–3.6 V operation.
RF performance is defined by configurable link budget (up to 110 dB), programmable TX power (+3 dBm nominal, up to +8 dBm), and multi-mode RX sensitivity (–100 dBm standard, –102 dBm in boost mode). The chip supports non-intrusive packet trace via dedicated PTI port and full ARM-standard debug interfaces (SWD/JTAG) with DWT, ITM, and FPB capabilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 32-bit RISC, operates at 6/12/24 MHz with Thumb-2 instruction set and NVIC |
| Memory | 128 kB flash (with read protection option) + 12 kB RAM - sufficient for ZigBee PRO stack and application logic |
| RF Performance | –100 dBm RX sensitivity (1% PER, 20-byte packet); +3 dBm nominal TX output; configurable up to +8 dBm |
| Power Consumption | 400 nA deep-sleep current (RAM retained, no sleep timer); 26 mA RX current (CPU active, 3.0 V) |
| GPIO & Peripherals | 24 highly configurable GPIOs with Schmitt-trigger inputs; UART/SPI/TWI; flexible ADC; AES128 hardware accelerator |
| Package | 7×7 mm, 48-pin QFN - RoHS-compliant, exposed thermal pad, compatible with standard reflow profiles |
| Supply Range | 2.1–3.6 V single supply; internal 1.8 V and 1.25 V regulators eliminate need for external LDOs |
Pinout & Package
RD-0020-0601 is housed in a 7×7 mm, 48-pin QFN package with exposed thermal pad. Pin functions are validated per Silicon Labs EM357 reference design and datasheet Rev 1.3 (Section 19.1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD_PADS (Pins 1, 23, 28, 37) | Digital I/O supply rail | Sets logic voltage level (2.1–3.6 V) for all GPIOs; must be decoupled locally |
| nRESET (Pin 12) | Active-low reset input | Asynchronous reset with internal pull-up (24–34 kΩ); triggers full system initialization |
| RF_P / RF_N (Pins 3, 4) | Differential RF antenna interface | Connects to balun for 50 Ω antenna matching; supports 2.4 GHz IEEE 802.15.4 operation |
| OSCA / OSCB (Pins 48, 47) | 24 MHz crystal oscillator terminals | Drives primary system clock; requires external 24 MHz ±25 ppm crystal and load caps |
| PA0–PA7, PB0–PB7, PC0–PC7 | General-purpose I/O ports | 24 total GPIOs; configurable as digital I/O, analog input (ADC), or peripheral functions (UART/SPI/TWI) |
| SWCLK / JTCK (Pin 32) | JTAG/SWD debug clock | Enables full ARM-standard debugging (flash programming, breakpoints, trace) without halting real-time operation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ZigBee/802.15.4 Stack Support | Hardware-accelerated MAC layer and baseband processing reduce host CPU overhead and ensure deterministic timing |
| AES128 Encryption Accelerator | Dedicated crypto engine enables secure over-the-air updates and end-to-end encryption without software latency penalty |
| Ultra-Low Deep-Sleep Current | 400 nA retention mode allows >10-year battery life in sensor nodes with periodic wake-up intervals |
| Flexible Clock Architecture | Internal HF RC oscillator enables 110 µs wake-from-sleep startup; optional 32.768 kHz crystal improves timer accuracy to ±20 ppm |
| Robust RF Coexistence | Proven rejection of Wi-Fi and Bluetooth interferers (>36 dB adjacent channel, >59 dB 2nd adjacent) maintains link reliability in dense RF environments |
Applications
| Smart Home Sensor Node | Industrial Wireless Monitor |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor transmitting data every 5 minutes to a ZigBee coordinator. IC Role / Device Role / Timing Role: Primary SoC handling RF communication, sensor interface, low-power scheduling, and security. Use Value: 400 nA deep-sleep current extends CR2032 battery life beyond 5 years; integrated AES128 secures OTA firmware updates. |
Use Scenario: DIN-rail mounted vibration monitor in factory machinery, reporting anomalies via ZigBee mesh to gateway. IC Role / Device Role / Timing Role: Real-time RF transceiver with deterministic MAC timing and robust coexistence in electrically noisy environments. Use Value: –102 dBm RX sensitivity and >59 dB 2nd adjacent rejection maintain link integrity near variable-frequency drives and Wi-Fi APs. |
| Lighting Control Endpoint | Medical Asset Tracker |
|
Use Scenario: LED driver module receiving group commands and dimming profiles over ZigBee network. IC Role / Device Role / Timing Role: Low-latency command processor with fast wake-up (110 µs) and precise PWM generation via GPIO/timers. Use Value: 24 configurable GPIOs support direct LED control, current sensing, and status indication without external logic. |
Use Scenario: Small-form-factor BLE/ZigBee hybrid tag tracking medical equipment location and usage history. IC Role / Device Role / Timing Role: Dual-role SoC managing both ZigBee mesh backhaul and local BLE advertising for proximity detection. Use Value: Single 2.1–3.6 V supply simplifies power design; 7×7 mm QFN enables integration into space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ZigBee/802.15.4 SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EM3581 | Successor device with 192 kB flash, enhanced RF front-end, and improved ESD rating (±4 kV HBM) | Better suited for complex mesh routers requiring larger code footprint and higher reliability in harsh environments | Select EM3581 when upgrading legacy designs needing extended memory or certified industrial robustness |
| CC2531 | 8051-based core, 256 kB flash, no ARM debug infrastructure, lower RX sensitivity (–97 dBm) | Limited to simpler star-topology networks; lacks SWD/JTAG trace and advanced power management | Choose CC2531 only for cost-sensitive, low-complexity applications where ARM toolchain compatibility is not required |
Compared with EM3581, RD-0020-0601 offers proven field reliability and smaller memory footprint ideal for endpoint devices; versus CC2531, it delivers superior debug visibility, lower deep-sleep current, and deterministic ARM-based real-time performance critical for time-sensitive sensor fusion.
Availability
RD-0020-0601 is available at Aetrix Electronics and suitable for smart home sensor nodes, industrial wireless monitors, lighting control endpoints, and medical asset trackers requiring stable component supply and long-term lifecycle support.
Supply support for RD-0020-0601 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Laboratories is a fabless semiconductor company specializing in silicon, software, and solutions for IoT, timing, and wireless applications.
RD-0020-0601 belongs to the EM35x family of ZigBee/802.15.4 SoCs designed specifically for ultra-low-power, standards-compliant wireless mesh networking in resource-constrained edge devices.
FAQ
What is the maximum configurable transmit output power for RD-0020-0601?
The RD-0020-0601 supports configurable TX output power up to +8 dBm in boost mode, verified on Silicon Labs' EM357 reference design. At +3 dBm nominal setting, total TX current is 30.0 mA (25 °C, 3.0 V, ARM Cortex-M3 running at 12 MHz). This range enables optimization between link margin and battery lifetime in end-node deployments.
Does RD-0020-0601 require an external crystal oscillator?
Yes, RD-0020-0601 requires a 24 MHz crystal connected to OSCA/OSCB pins (Pins 48/47) for primary system clocking. An optional 32.768 kHz crystal may be added for high-accuracy sleep timers, but the internal low-frequency RC oscillator (400 nA quiescent) suffices for basic deep-sleep timing.
How many GPIOs does RD-0020-0601 provide, and what are their key electrical characteristics?
RD-0020-0601 provides 24 highly configurable GPIOs across PA/PB/PC ports. All support Schmitt-trigger inputs with switch thresholds of 0.42–0.50 × VDD_PADS (low) and 0.62–0.80 × VDD_PADS (high). Eight pins (PA6, PA7, PB6, PB7, PC0) support 8 mA sink/source; others support 4 mA, with total I/O current limited to 40 mA.
What debug interfaces are supported by RD-0020-0601?
RD-0020-0601 supports full ARM-standard debug via Serial Wire Debug (SWD) and JTAG using pins SWCLK (Pin 32) and associated TMS/TDO/TDI. It includes Data Watchpoint & Trace (DWT), Instrumentation Trace Macrocell (ITM), Flash Patch & Breakpoint (FPB), and Packet Trace Interface (PTI) for non-intrusive RF packet analysis.
Is RD-0020-0601 pin-compatible with other EM35x variants like EM357 or EM3581?
No, RD-0020-0601 is not pin-compatible with EM357 or EM3581. While all share the same 48-pin QFN package outline, pin assignments differ significantly - for example, RF_TX_ALT_P/N placement and VDD domain routing vary across revisions. Migration requires PCB redesign and firmware adaptation.
RD-0020-0601 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Series:
- Ember®
- Packaging:
- Box
- Product Status:
- Obsolete
- Type:
- Transceiver; 802.15.4 (Zigbee®)
- Frequency:
- 2.4GHz
- Contents:
- Board(s)
- Utilized IC / Part:
- EM357
RD-0020-0601 FAQ
1.How can I place an order for RD-0020-0601 through Aetrix?
Please submit a Request for Quotation (RFQ) for RD-0020-0601 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RD-0020-0601 reliable?
The price and inventory of RD-0020-0601 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD-0020-0601 is usually 5 days.
3.What payment methods are accepted for RD-0020-0601?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD-0020-0601 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD-0020-0601?
RD-0020-0601 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD-0020-0601 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RD-0020-0601?
For technical support, including RD-0020-0601 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD-0020-0601 requirements.
6.How does Aetrix verify that RD-0020-0601 is sourced from the original manufacturer or authorized distributors?
All RD-0020-0601 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RD-0020-0601 meets industry standards.
7.What is the process for return or replacement of RD-0020-0601?
All RD-0020-0601 units undergo pre-shipment inspection (PSI). If there is an issue with RD-0020-0601, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RD-0020-0601 part is unused and in its original packaging.
Return procedure for RD-0020-0601:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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