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Renesas ZWIR4512AC2RA
- Part No.:
- ZWIR4512AC2RA
- Manufacturer:
- Renesas
- Category:
- RF Transceiver ICs
- Package:
- 32-BELGA Module
- Datasheet:
-
ZWIR4512AC2RA.pdf
- Description:
- IC RF TXRX+MCU ISM<1GHZ 32LGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ZWIR4512AC2RA from Integrated Device Technology (IDT) is a secure, low-power wireless IPv6 module integrating an ARM® Cortex™-M3 microcontroller and ZWIR4502 RF transceiver. It delivers 6LoWPAN mesh networking, IPSec/IKEv2 security, and supports 868/915MHz bands with up to 10dBm TX power (US mode), -110dBm RX sensitivity, and 250kBps O-QPSK data rate - enabling battery-operated smart metering and industrial sensor nodes.
For engineers reviewing the ZWIR4512AC2RA datasheet, ZWIR4512AC2RA pinout, ZWIR4512AC2RA application, or ZWIR4512AC2RA equivalent, key selection considerations include its 32-pin LGA package, 21 GPIOs with multiplexed UART/SPI/I²C/USB/CAN/ADC/DAC/PWM, ETSI/FCC certification, and pre-integrated royalty-free 6LoWPAN stack with mesh routing.
Technical Context
The ZWIR4512AC2RA implements a full 6LoWPAN protocol stack on an STM32F103RC MCU (64MHz ARM Cortex-M3, 256kB flash, 48kB SRAM), paired with IDT's ZWIR4502 transceiver for IEEE 802.15.4-compliant RF operation. Its firmware provides dual programming models: serial command interface (SCI) for modem-like use and C-API for custom embedded applications.
Security is implemented via standards-compliant IPSec and IKEv2 protocols, enabling end-to-end encrypted IPv6 communication over untrusted networks. Power management includes four low-power modes - Standby (3.5µA), Stop (26.5µA), Sleep, and Run - with hardware-accelerated wake-up and RTC support for time-synchronized sensor deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Band | 865–928 MHz license-free ISM band; supports EU (4 channels) and US (10 channels) regulatory domains |
| Modulation & Data Rate | O-QPSK up to 250 kBps (US), BPSK up to 40 kBps (US); enables high-throughput sensor telemetry in dense deployments |
| TX Output Power | Up to +10 dBm (US mode only); sufficient for 100+ m outdoor line-of-sight range without external PA |
| RX Sensitivity | -110 dBm (BPSK, EU); ensures reliable reception in low-SNR industrial environments with minimal retries |
| MCU Resources | ARM Cortex-M3 @ 64 MHz, 256 kB flash, 48 kB SRAM; hosts full 6LoWPAN stack + user application without external host |
| GPIO Count & Types | 21 programmable I/Os including 5V-tolerant pins, supporting UART1/2, SPI1, I²C, USB, CAN, 3×ADC, 2×DAC, 11×PWM |
| Power Consumption | 3.5 µA in Standby Mode; enables >10-year battery life in coin-cell-powered endpoint devices |
| Certification | FCC Part 15.247 and ETSI EN 300 328 certified; eliminates need for customer-level RF compliance testing |
Pinout & Package
The ZWIR4512AC2RA uses a 32-pin land grid array (LGA) package with 5.0 × 5.0 mm footprint and 0.5 mm pitch, optimized for compact PCB layouts and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–9, 13–26 | GPIO / Peripheral Multiplexed I/O | 21 configurable pins supporting UART1/2, SPI1, I²C, USB, CAN, ADC, DAC, PWM, timers, and JTAG/SWD debug |
| 10 | VSTDBY | Alternative standby power supply input (VBAT); maintains RTC and wake-up logic during main power loss |
| 11 | /RESET | Active-low reset input; synchronous with internal power-on reset and compatible with external push-button or supervisor ICs |
| 12, 28, 30, 32 | GND | Four dedicated ground connections; reduce noise coupling and improve RF stability in high-density layouts |
| 14–15 | VCC | Main 2.0–3.6 V supply; powers MCU core, peripherals, and transceiver; requires local 100 nF + 4.7 µF decoupling |
| 16 | BSEL | Boot mode selection; determines whether device boots from internal flash or system memory for firmware recovery |
| 17–18 | GPIO15 / GPIO16 | 32.768 kHz crystal oscillator inputs (OSC32_IN/OUT); enable precise RTC timing and low-power sleep synchronization |
| 19–20 | GPIO10 / GPIO11 | UART1 CTS/RTS with USB D-/D+ and CAN RX/TX functions; supports simultaneous wired/wireless communication paths |
| 21–24 | TDO/TMS/TDI/TCK | JTAG/SWD debug interface; enables full in-circuit programming, real-time tracing, and non-intrusive debugging |
| 29 | ANT | Differential RF antenna port; matched to 50 Ω; requires no external matching network for PCB trace or chip antenna |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 6LoWPAN Stack | Royalty-free, user-programmable stack with mesh routing - eliminates need for external IP gateway or protocol translation |
| Standards-Based Security | Fully compliant IPSec/IKEv2 implementation - provides authenticated, encrypted IPv6 transport without custom crypto development |
| No External MCU Required | Onboard STM32F103RC with 256 kB flash and 48 kB SRAM hosts both network stack and application firmware |
| Regulatory Certification | FCC and ETSI pre-certified - reduces time-to-market by removing customer RF test burden and documentation overhead |
| Ultra-Low Standby Current | 3.5 µA with RTC active - enables decade-long operation on CR2032 batteries in periodic wake-up sensor applications |
| Hardware-Unique EUI-64 | Factory-programmed globally unique 64-bit MAC address - ensures zero-configuration IPv6 addressing and network scalability |
Applications
| Smart Metering | Industrial Wireless Sensor Network |
|---|---|
|
Use Scenario: Battery-powered gas/water/electricity meters transmitting consumption data hourly via meshed LPWAN to concentrators. IC Role / Device Role / Timing Role: Primary IPv6 radio node executing 6LoWPAN adaptation layer, mesh forwarding, and secure IPSec tunneling to utility backend. Use Value: Eliminates gateway dependency with self-healing mesh; 3.5 µA standby extends battery life beyond 10 years per ANSI C12.22 requirements. |
Use Scenario: Distributed temperature, vibration, and pressure monitoring across factory floors using battery-powered edge nodes. IC Role / Device Role / Timing Role: Autonomous sensor endpoint performing local ADC sampling, timestamped packet generation, and scheduled 6LoWPAN transmission. Use Value: On-chip ARM Cortex-M3 processes sensor fusion algorithms; integrated USB/CAN allows hybrid wired-wireless commissioning and diagnostics. |
| Health Monitoring Wearables | Secure Keyless Entry Systems |
|
Use Scenario: Disposable patch sensors measuring ECG, skin temperature, and motion, transmitting encrypted health data to hub devices. IC Role / Device Role / Timing Role: Secure medical data transmitter implementing HIPAA-aligned encryption via IPSec/IKEv2 and low-latency BPSK modulation. Use Value: Pre-certified RF and hardware-enforced security eliminate FDA submission risks; 21 GPIOs support multi-sensor analog front-ends. |
Use Scenario: Vehicle door handle modules authenticating fobs via encrypted challenge-response over sub-GHz link. IC Role / Device Role / Timing Role: Low-latency, tamper-resistant RF transceiver with fast wake-up (<100 µs) and hardware AES acceleration for rolling-code generation. Use Value: Integrated CAN interface enables direct vehicle bus integration; -110 dBm sensitivity ensures reliable operation inside metal car bodies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure low-power wireless IPv6 module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Silicon Labs EFR32MG21A020F768IM32 | Proprietary EmberZNet stack (not native IPv6); higher TX power (+20 dBm); larger 7×7 mm QFN package | Requires Zigbee-to-IPv6 gateway; better suited for high-density home automation than direct IPv6 infrastructure integration | Choose when leveraging existing Zigbee ecosystem or needing higher RF output; avoid if native 6LoWPAN/IPv6 endpoint functionality is mandatory |
| TI CC2652RB | Integrated BAW resonator eliminates external crystal; lower max TX power (+5 dBm); smaller 4×4 mm QFN | Lacks pre-integrated IPSec/IKEv2; relies on software-based TLS/DTLS; limited RAM (80 kB) constrains complex security stacks | Prefer for cost-sensitive, size-constrained designs where hardware crypto acceleration is not required and gateway-based security is acceptable |
Compared with EFR32MG21A020F768IM32 and CC2652RB, the ZWIR4512AC2RA uniquely delivers production-ready, standards-compliant IPv6 + IPSec/IKEv2 in a single module - reducing firmware development effort, eliminating gateway dependencies, and accelerating certification for industrial and utility-grade deployments.
Availability
ZWIR4512AC2RA is available at Aetrix Electronics and suitable for smart metering, industrial wireless sensor networks, health monitoring wearables, and secure keyless entry systems requiring stable component supply, long-lifecycle assurance, and pre-certified RF performance.
Supply support for ZWIR4512AC2RA 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
Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, RF, wireless power, and sensor signal conditioning solutions for communications, computing, and industrial markets.
The ZWIR4512AC2RA belongs to IDT's ZWIR45xx family of secure wireless IPv6 modules, designed specifically to simplify deployment of standards-based, battery-efficient, end-to-end encrypted IoT networks without requiring RF expertise or protocol stack development.
FAQ
What wireless standard does the ZWIR4512AC2RA implement?
The ZWIR4512AC2RA implements the IETF-standardized 6LoWPAN protocol over IEEE 802.15.4 physical layer, enabling native IPv6 communication on low-power wireless networks. It supports BPSK and O-QPSK modulation schemes across 868/915 MHz ISM bands, with full mesh routing capability built into its royalty-free stack - no external gateway or protocol translation is required for IPv6 connectivity.
Does the ZWIR4512AC2RA require an external microcontroller?
No, the ZWIR4512AC2RA does not require an external microcontroller. It integrates an STM32F103RC ARM Cortex-M3 MCU with 256 kB flash and 48 kB SRAM, which executes both the preloaded 6LoWPAN stack and user application firmware. All peripheral interfaces - including UART, SPI, I²C, USB, CAN, ADC, DAC, and PWM - are accessible directly through the module's 21 GPIOs.
How is security implemented in the ZWIR4512AC2RA?
Security in the ZWIR4512AC2RA is implemented via standards-compliant Internet Protocol Security (IPSec) and Internet Key Exchange Protocol version 2 (IKEv2), both embedded in firmware. These protocols provide authenticated, encrypted end-to-end IPv6 transport - even across untrusted intermediate nodes - without requiring custom cryptographic development or external security co-processors.
What certifications does the ZWIR4512AC2RA hold?
The ZWIR4512AC2RA is pre-certified to FCC Part 15.247 (USA) and ETSI EN 300 328 (Europe). This includes conducted and radiated emissions, spurious response, and RF exposure testing. Certification covers both EU (868 MHz, 4-channel) and US (915 MHz, 10-channel) operational modes, allowing immediate integration into commercial products without additional RF compliance validation.
What power modes does the ZWIR4512AC2RA support, and what is its lowest current draw?
The ZWIR4512AC2RA supports four low-power modes: Run, Sleep, Stop, and Standby. Its lowest operational current is 3.5 µA in Standby Mode with RTC active - achieved by powering down the ARM Cortex-M3 core and RF transceiver while retaining wake-up capability via GPIO, timer, or RF activity. This enables multi-year battery life in intermittent-sensing applications.
ZWIR4512AC2RA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 32-BELGA Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- TxRx + MCU
- RF Family/Standard:
- General ISM < 1GHz
- Protocol:
- 6LoWPAN
- Modulation:
- BPSK, O-QPSK
- Frequency:
- 868MHz ~ 915MHz
- Data Rate (Max):
- 250kbps
- Power - Output:
- 10dBm
- Sensitivity:
- -110dBm
- Memory Size:
- -
- Serial Interfaces:
- I2C, SPI, UART
- GPIO:
- 21
- Voltage - Supply:
- 2V ~ 3.6V
- Current - Receiving:
- 10.5mA
- Current - Transmitting:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-LGA (22.9x14.9)
ZWIR4512AC2RA FAQ
1.How can I place an order for ZWIR4512AC2RA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZWIR4512AC2RA 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 ZWIR4512AC2RA reliable?
The price and inventory of ZWIR4512AC2RA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZWIR4512AC2RA is usually 5 days.
3.What payment methods are accepted for ZWIR4512AC2RA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZWIR4512AC2RA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZWIR4512AC2RA?
ZWIR4512AC2RA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZWIR4512AC2RA 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 ZWIR4512AC2RA?
For technical support, including ZWIR4512AC2RA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZWIR4512AC2RA requirements.
6.How does Aetrix verify that ZWIR4512AC2RA is sourced from the original manufacturer or authorized distributors?
All ZWIR4512AC2RA 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 ZWIR4512AC2RA meets industry standards.
7.What is the process for return or replacement of ZWIR4512AC2RA?
All ZWIR4512AC2RA units undergo pre-shipment inspection (PSI). If there is an issue with ZWIR4512AC2RA, 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 ZWIR4512AC2RA part is unused and in its original packaging.
Return procedure for ZWIR4512AC2RA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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