Texas Instruments’ MSP430FG4270 is a system-on-chip (SoC) microcontroller unit (MCU) that provides a complete signal chain for handheld medical applications. The MCU integrates a comprehensive range of functions needed to design low-cost portable medical diagnostic equipment. The on-chip memory and a full suite of integrated analog peripherals reduce component costs and system space in portable applications such as personal blood pressure monitors, spirometers, pulsoximeters and heart-rate monitors.

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The MSP430FG4270's 16-bit RISC architecture is designed for optimized performance and extended battery life. Five low-power modes, with a standby power consumption of only 1.1 ìA, conserve power, while a wake-up from standby to active mode of less than 6 ìs provides excellent response when the equipment is needed. On-chip functions include a high-performance 16-bit sigma-delta ADC with internal reference and five differential analog inputs, a 12-bit DAC, two configurable operational amplifiers, a 16-bit timer, 16-bit registers, 32 I/O pins, zero-power brown-out reset, and an LCD driver with contrast control for up to 56 segments.

The MSP430FG4270 MCU is now available in a 48-pin SSOP or 48-pin QFN package. Pricing is $3.78 per unit in quantities of 10,000. The devices are supported by MSP430 Development Kits, which include everything required to complete an entire project.