16-Bit RISC Architecture, 125-ns Instruction Cycle Time
Scan IF for Background Water, Heat, and Gas Volume Measurement
16-Bit Timer_A With Three Capture/Compare Registers
16-Bit Timer_A With Five Capture/Compare Registers
Integrated LCD Driver for 96 Segments
On-Chip Comparator
Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
Brownout Detector
Supply Voltage Supervisor/Monitor With Programmable Level Detection
Bootstrap Loader in Flash Devices
Family Members Include:
MSP430FW423: 8KB + 256B Flash Memory, 256B RAM
MSP430FW425: 16KB + 256B Flash Memory, 512B RAM
MSP430FW427: 32KB + 256B Flash Memory, 1KB RAM
Available in 64-Pin Quad Flat Pack (QFP)
For Complete Module Descriptions, Refer to the MSP430x4xx Family Users Guide, Literature Number SLAU056
说明
The Texas Instruments MSP430 family of ultralow power microcontrollers consist of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs.
The MSP430xW42x series are microcontroller configurations with two built-in 16-bit timers, a comparator, 96 LCD segment drive capability, a scan interface, and 48 I/O pins.
Typical applications include sensor systems that capture analog signals, convert them to digital values, and process the data and transmit them to a host system. The comparator and timers make the configurations ideal for gas, heat, and water meters, industrial meters, counter applications, handheld meters, etc.