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The 5V operating voltage and high interference immunity, along with the 20-pin small package design, optimize system cost

With continuous advancements in semiconductor technology, the performance of 32-bit microcontrollers has been steadily improving while costs have been decreasing, making them the mainstream choice in the market. The rapid growth in applications such as AIoT, industrial automation, smart homes, energy storage, and automotive electronics has placed higher demands on microcontroller performance. Traditional 8-bit microcontrollers often fall short in various applications, driving the widespread adoption of 32-bit microcontrollers. To address these market challenges, Nuvoton Technology has launched the new M2003 series of 32-bit microcontrollers based on the Arm Cortex-M23 core. This series not only features fast computing capabilities and an integrated hardware divider but also supports 5V operating voltage and high interference immunity. The 20-pin small package design meets the market’s performance and optimized system cost needs.

The M2003 series adopts the Arm Cortex-M23 core and is a 32-bit microcontroller with an operating frequency of up to 24 MHz. It includes a 32-bit hardware multiplier/divider, offers 32 KB of Flash memory and 4 KB of SRAM, and operates within a voltage range of 2.4V to 5.5V, with an operating temperature range of -40°C to 105°C.

To meet diverse performance design requirements while reducing size and cost, the M2003 series supports 4 sets of 32-bit timers, 1 watchdog timer, a 3-channel enhanced input capture timer, 2 UARTs, 1 I²C, and 1 universal serial control interface (USCI), which can be flexibly configured as UART/SPI/I²C. Additionally, all communication interfaces have independent FIFO to ensure data integrity during high-speed communication. This series also provides rich analog peripherals, including an 8-channel 12-bit 500 ksps ADC and a 6-channel 16-bit PWM. The series offers small package sizes in TSSOP20 and QFN20 (3 x 3 mm).

The M2003 series comes equipped with the NuTool – CodeGenerator tool. Developed in-house by Nuvoton, this tool can quickly generate initialization projects and integrates peripheral, pin, and clock configuration functions. Users can easily set system parameters through an intuitive interface, and the generated code is fully compatible with Keil, IAR, and NuEclipse, helping to reduce setup time and improve development efficiency. The M2003 series supports ISP and IAP upgrade methods, simplifying system and software update processes and allowing developers to utilize the numerous features of the M2003 series fully. Combined with the NuMaker-M2003FC development board and Nu-Link debugger, it supports Keil MDK, IAR EWARM, and NuEclipse IDE and uses the GNU GCC compiler, providing a complete development ecosystem.

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The sensor fusion technology is alive and well, and it’s apparent in a sensor module that combines data from seven sensing signal sources in an indoor air quality monitoring solution and passes it onto an onboard microcontroller (MCU) to detect surrounding air quality data in real-time. All components in this sensor module are pre-integrated and fully calibrated at the factory, which enables developers to start their sensor system designs right out of the box.

The RRH62000 sensor module unveiled by Renesas packs an MCU with seven sensor signals: the laser-based PM1/ 2.5/ 10 sensor, ZMOD4410 gas sensor, and the HS4003 humidity and temperature sensor. These sensors detect particulate matter, total volatile organic compounds (TVOC), estimated CO2, temperature, and humidity all in one system.

The sensors inside the module can detect particulate matter, TVOCs, estimated CO2, temperature, and humidity in a single unified monitoring system. Source: Renesas

At a time when heat, ventilation and air conditioning (HVAC) systems are moving toward autonomous monitoring of our air quality, such combo sensing solutions could be critical in monitoring and detecting harmful gasses in indoor spaces. Such solutions can also support demand-controlled ventilation, which in turn, will allow HVAC systems to adjust air flow based on carbon dioxide levels and occupancy information to maintain optimal air quality and energy efficiency.

The RRH62000 sensor module also employs artificial intelligence (AI) algorithms to predict when HVAC filters must be replaced or detect an anomaly before system failure occurs. That significantly reduces system maintenance cost and time.

Alongside embedded AI algorithms, the sensor module comes with firmware that enables engineers to configure the sensors to support various green air quality standards in public buildings, including The Well Building Standard (WELL), Home Ventilating Institute (HVI) and RESET. As a result, design engineers can use the same hardware for multiple locations and geographies by simply updating the AI-enabled firmware.

While people are now more aware of how air pollutants can affect respiratory health and overall well-being, what’s less known is that pollutants are typically six to 10 times more concentrated indoors than outdoors. That includes dust, paint fumes, smoke from cooking, pollen, and particulates from HVAC filters.

RRH62000—available in a compact footprint measuring 46.6 x 34.8 x 12 mm—provides an integrated design solution encompassing sensors, RA family MCU, AI algorithms, and firmware to turn sensing data into actionable insight for indoor environment monitoring. That makes it a plug-and-play solution for indoor air quality monitoring, claims Renesas.

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Alpha and Omega Semiconductor now offers five power MOSFETs in rugged LFPAK 5×6-mm surface-mount packages. The low-profile, flat power package minimizes vertical PCB space and performs reliably in harsh environments. MOSFETs in the 4-lead LFPAK are available in 40-V, 60-V, and 100-V variants.

LFPAK packaging enhances board-level reliability with features such as gull-wing leads and a larger copper clip. The gull-wing leads offer durability against board-level environmental stresses and facilitate optical inspection during PCB manufacturing. The larger clip improves current handling, reduces on-resistance, and provides better heat dispersion compared to wire bonding, while also minimizing parasitic inductance.

LFPAK MOSFETs are well-suited for applications requiring high reliability, including those in the industrial, server power, telecommunications, and solar sectors. The table below highlights the key specifications of the five available devices:

The LFPAK 5×6 family is immediately available in production quantities, with a lead time of 14 to 16 weeks. In lots of 1000 units, the AOLF66412, AOLF66413, AOLF66417, AOLF66610, and AOLF66910 cost $1.15, $1.17, $0.78, $1.65, and $2.10, respectively.

Alpha and Omega Semiconductor

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Diodes’ PI3DPX1225Q is an automotive 6:4 active crossbar multiplexer with a linear redriver operating at 10 Gbps. It routes USB 3.2 and DisplayPort 2.1 signals through a USB Type-C connector, offering low-latency connectivity with high signal integrity for smart cockpits and rear-seat entertainment systems.

The PI3DPX1225Q supports three operating modes: it can connect a single USB 3.2 Gen 2 lane to the USB Type-C connector, one USB 3.2 Gen 2 lane and two DisplayPort 2.1 UHBR10 channels, or four DisplayPort 2.1 UHBR10 channels. Additionally, the device includes an AUX listener that automatically swaps AUX channels when a flipped USB Type-C cable is detected.

In each operating mode, continuous time linear equalization (CTLE) adjusts differential signals, with output compression swing and flat-gain controlled via I2C. This reduces ISI jitter and optimizes 10-Gbps signal performance across various mediums. CTLE supports DP 2.1 transparent link training without affecting the decision feedback equalizer (DFE) receiver’s adaptive controls.

The crossbar linear redriver is AEC-Q100 Grade 3 qualified, operating over a temperature range of -40°C to +85°C. Prices for the PI3DPX1225Q in a 40-pin, 4×6-mm WQFN package start at $1.87 each in lots of 3500 units.

PI3DPX1225Q product page

Diodes

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An air quality sensor module from Renesas, the RRH62000, detects harmful particulates, volatile organic compounds, and gases. With an onboard MCU and embedded AI algorithms, this plug-and-play module measures seven critical parameters to monitor air quality in homes, schools, and public buildings.

The RRH62000 monitors a wide range of air quality conditions, measuring particulate matter (PM1, PM2.5, PM10), total volatile organic compounds (TVOC), indoor air quality index, estimated carbon dioxide (eCO2), temperature, and relative humidity. All seven digital sensor outputs are delivered simultaneously, enabling real-time air quality detection through the onboard MCU.

With dimensions of 46.6×34.8×12 mm, the RRH62000 is among the smallest sensor modules in its class. It supports I2C and UART communication, with a 6-pin connector for simple plug-and-play integration. The module includes standard firmware and AI algorithms, allowing engineers to configure the sensors to meet various green air quality standards for public buildings.

The RRH62000 integrated sensor module and evaluation board are now available for purchase on the Renesas website and through its distributor network.

RRH62000 product page

Renesas Electronics 

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The iND87204 automotive wireless charging SoC from indie complies with WPC’s Qi v2.0 standard and Magnetic Power Profile (MPP). Certified products with the Qi2 logo employ MPP technology to magnetically align devices and chargers, leading to improved energy efficiency, faster charging, and greater convenience.

indie’s chip integrates two Arm Cortex processor cores for application and WPC stack processing, along with essential components such as in-vehicle serial interfaces, power management, DC/DC conversion, signal conditioning, WPC inverter drivers, power FETs, and peripheral drivers. This comprehensive integration supports a fully Qi2-compliant wireless charging solution that delivers up to 15 W of power.

The dual-core design of the iND87204 features a 32-bit Cortex-M4 processor with 2 Mbytes of embedded flash and 256 kbytes of SRAM, alongside a dedicated Cortex-M0 for the WPC stack. Serial interfaces include CAN 2.0B, LIN, I2C, SPI, and UARTs. The device is AEC-Q100 Grade 2 qualified, supporting an operating temperature range of -40°C to +105°C.

The iND87204 is now sampling to lead customers, with production release in Q4 2024.

iND87204 product page 

indie Semiconductor 

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Microchip’s CryptoAuthentication ICs for secure key provisioning are preconfigured to reduce development time and accelerate prototyping. As part of the TrustFLEX platform, the ECC204, SHA104, and SHA105 offer hardware-based secure storage to prevent unauthorized attacks.

The chips come preconfigured with defined use cases, customizable cryptographic keys, and code examples to simplify development. Microchip expects these devices to lower the barrier to secure key provisioning, making them particularly suitable for high-volume, cost-sensitive applications.

ECC20x and SHA10x devices achieve a High Joint Interpretation Library (JIL) score for secure key storage. They are also NIST-certified under ESV and CAVP, complying with the Federal Information Processing Standard (FIPS). These secure ICs enable trusted authentication to protect the confidentiality, integrity, and authenticity of data and communications across various systems and applications.

The ECC20x and SHA10x ICs are supported by the Trust Platform Design Suite, which offers secure credential transfer for integration with Microchip’s key provisioning service. Devices are also compatible with the MPLAB X IDE and CryptoAuthentication library.

Prices for the ECC204 start at $0.52 each in lots of 2000 units. Prices for the SHA104 and SHA105 start at $0.50 each in like quantities. To learn more about the Trust Platform, click here.

Microchip Technology 

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