Nuvoton Technology Corporation announces the launch of the NSC128L42, a new 32-bit Arm Cortex-M23 microcontroller for high-precision measurement. This highly integrated solution combines a 24-bit Sigma-Delta ADC, an LCD driver, and high-quality voice synthesis in a single package. With an operating speed of up to 49.152 MHz and support for a wide voltage range (2.0V to 5.5V), it is perfectly suited for a variety of portable and industrial applications.
Superior Computing Performance and Development Flexibility
The microcontroller features 320 KB of embedded Flash memory, along with an additional 6 KB that can be configured as a bootloader for In-System Programming (ISP). With 18 KB of SRAM, it provides ample memory for real-time data processing and embedded control tasks. The In-Circuit Programming (ICP) capabilities allow developers to update voice content efficiently, even after the device has been deployed in the field.
Powerful Analog Integration: Designed for Precision Measurement
A standout feature of NSC128L42 is its comprehensive analog capability, making it ideal for high-precision sensing applications. The device integrates a 24-bit Sigma-Delta ADC for ultra-high-resolution signal acquisition, complemented by a 12-bit SAR ADC for faster general-purpose conversions. Additional analog components, including a low-noise amplifier and an operational amplifier, enhance signal integrity and reduce the need for external circuitry. These features make NSC128L42 particularly suitable for applications such as blood pressure monitors, precision scales, and various measurement devices.
Rich Peripheral Connectivity and Smart Audio Support
In addition to its analog strengths, NSC128L42 provides a rich set of digital peripherals, including multiple UART interfaces, SPI and SPIM communication modules, and a six-channel Peripheral Direct Memory Access (PDMA) controller for efficient data handling. It also incorporates three 16-bit timers and PWM outputs to support a wide range of control applications. An integrated LCD driver supports various COM/SEG configurations, enabling direct connection to segment displays and reducing overall system cost.
For applications requiring audio functionality, the device includes a Class-D speaker driver capable of delivering up to 0.35W output at 3.6V, allowing for voice manual, audio alerts or voice assistance to increase the user’s experience.
Low Power Design and Industrial-Grade Reliability
Power efficiency remains a key focus in the NSC128L42 design. The microcontroller supports multiple low-power modes, including a Deep Power Down mode that consumes less than 1 µA. An internal low-speed RC oscillator enables periodic wake-up, allowing the system to monitor events while maintaining ultra-low energy consumption. Reliability is further enhanced through features such as a built-in Brown-Out Detector and an operating temperature range of -40°C to 85°C. With its combination of precision analog integration, flexible connectivity, and low-power operation, NSC128L42 provides an ideal platform for developers targeting smart measurement, medical, and industrial applications.
