Texas Instruments

Texas Instruments


MSP430X4XX

Targets: Consumer, Imaging & Video, Industrial, Medical, Mobile & Wireless, Security

Texas Instruments MSP430 LCD Block Diagram

The MSP430x4xx LCD flash/ROM based devices offer 1.8 to 3.6V operation with a high level of integration, including up to 120-kbytes of Flash/ROM, FLL, SVS and an LCD controller. This integration, when combined with the devices' ultra-low power architecture and programmable communication capabilities, makes MSP430x4xx microcontrollers suitable for portable, high-precision medical, consumer and metering and automatic meter reading (AMR) applications.

Texas Instruments MSP430X4XX Block Diagram

The MSP430xW42x devices target water, heat and gas metering applications, and they contain on-chip Scan interface (IF) state machines that are fully programmable and can automatically perform functions previously accomplished in software. The Scan IF module is used to automatically measure linear or rotational motion with low power consumption. The Scan IF provides support for different types of LC sensors, measurement of sensor signal envelope and oscillation amplitude, and for resistive sensors such as Hall-effect or giant magneto-resistive (GMR) sensors. The Scan IF supports quadrature decoding and allows direct analog input for A/D conversion and direct digital input for digital sensors such as optical decoders.

Texas Instruments MSP430X4XX Block Diagram

The MSP430FE42xx microcontroller, with the ESP430CE1 embedded signal processing for 2-wire and 3-wire single-phase energy metering with integrated analog front-end and temperature sensor, targets energy metering applications. The ESP430CE1 does most of the work for the energy measurement automatically without needing resources of the main CPU, which keeps the main CPU free for other tasks like communication. The ESP430CE1 offers flexibility for current sensors, so that it is possible to use shunt, current transformers (including dc-tolerant CTs with high phase shift) or Rogowski coils without additional hardware.

Texas Instruments MSP430X4XX Block Diagram

The MSP430F47xx, F47x and F471xx microcontrollers are optimized for one- and poly-phase metering. The F471xx series of microcontrollers achieves accuracy results of better than 0.1 percent, and offers simultaneous sampling of voltage and current as well as tamper-detection for efficient and reliable energy measurement. These devices offer integration of up to seven individual 16-bit sigma delta analog to digital converters (ADCs), up to 120-kbyte of Flash memory, two 16-bit timers, four universal serial communication interfaces (USCI). DMA, 68 I/O pins, and a liquid crystal driver (LCD) with integrated contrast control.

Texas Instruments MSP430 Medical Block Diagram

The MSP430FG4xx devices target portable medical instrumentation, and they offer up to three precision operational amplifiers to handle high precision instrumentation. The integrated op-amps coupled with on-board 12-bit ADC, 12-bit DAC, and DMA controller make up a signal chain on chip implementation that eliminates the need for external components. The new FG47x devices offer on-chip integration of the complete signal chain, which consists of two configurable op amps, 12-bit digital-to-analog converter (DAC) comparator and 16-bit analog-to-digital (ADC) reducing design complexity and resulting in significant space and cost savings. With ultra-low power consumption that extends battery life to more than 20 years, the devices also feature a 16-bit sigma-delta ADC for high-resolution signal conversion, a 128-segment LCD driver and up to 60-kbytes Flash and 2-kbytes RAM.

MSP430x4xx devices all support multiple low power operating modes with a wake-up time of less than six microseconds and zero power BOR. The expanded DMA, with triggers from all peripherals, accelerates microcontroller-based signal processing by providing sophisticated and configurable data transfer without CPU interaction.

MSP43FG461x incorporate the MSP430X architecture, which offers an extended 1-Mbyte memory model, allowing access to 16 times more flash memory. These devices offer up to 120-kbytes of flash, consume less than two micro-amps in a real time clock stand-by mode operation and allow operation from a single coin cell for up to ten years.