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TI adds integrated smart analogue to MSP430 i-series MCUs

07 Nov 2014

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Texas Instruments (TI) has released the MSP430i204x industrial microcontrollers (MCUs) suited for cost-sensitive industrial segments including occupancy sensors, remote temperature, and pressure transmitters and power monitoring. The latest MSP430 i-series MCUs contain integrated smart analogue, including up to four integrated sigma delta analogue-to-digital converters (ADCs) that provide accuracy and precision down to one per cent in smart metering products across a 2000:1 dynamic range.

The MSP430i204x MCUs meet the temperature range requirements from -40°C to 105°C needed for industrial and smart grid applications. They also include an internal digitally controlled oscillator (DCO) that eliminates the need for an external crystal. Available in 28-pin TSSOP and 32-pin QFP packages, these MCUs enable developers to reduce design cost and create smaller products for industrial applications. Developers porting to the MSP430i204x industrial MCUs can scale their designs to include 16KB or 32KB flash memory and integrated analogue such as sigma-delta analogue front ends (AFEs).

The additional analogue provides tamper detection for metering, which allows developers to design smart energy meters that can detect unauthorised access. The MCUs have free energy library code that performs all of the energy and power calculations required for ANSI/IEC qualified meters, and provides an easy starting point for customers developing utility meter products.

The company also offers three TI Designs with schematics, block diagrams, bill of material (BOM), design files and test reports to help developers start their embedded server power metering and smart power strip designs. These industrial reference designs incorporate TI's complementary TPS54060 step-down (buck) converter. In addition, developers can leverage TI's SimpleLink Wi-Fi CC3200 wireless MCU to enable industrial designs to communicate with other connected devices or TI's DAC8760 family of digital-to-analogue converters (DACs) for 4mA to 20mA current loop industrial sensor applications.

MSP430i2040 MCUs with 16KB flash are available in production quantities for $1.70 in 1,000 units. MSP430i2041 MCUs with 32KB flash are available for $1.75 in 1,000 units. Developers can start their industrial designs with the EVM430-i2040S sub-metering EVM for $99 or the MSP-TS430RHB32A target board for $115.

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