描述 Description

The Texas Instruments MSP430 family of ultra-low-power microcontrollers consists 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 contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the device to wake up from low-power modes to active mode in less than 6 μs. The MSP430FW42x 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, and hand-held meters.

特性 Features

? Low Supply Voltage Range: 1.8 V to 3.6 V
? Ultra-Low-Power Consumption:
? Active Mode: 200 μA at 1 MHz, 2.2 V
? Standby Mode: 0.7 μA
? Off Mode (RAM Retention): 0.1 μA

? Five Power-Saving Modes
? Wake Up From Standby Mode in Less Than 6?μs
? Frequency-Locked Loop, FLL+
? 16-Bit RISC Architecture, 125-ns Instruction Cycle Time
? Scan Interface 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 Up to 96 Segments
? On-Chip Comparator
? Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
? Brownout Detector
? Supply Voltage Supervisor and Monitor With Programmable Level Detection
? Bootstrap Loader (BSL) 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
? MSP430FW428 48KB + 256B Flash Memory, 2KB?RAM
? MSP430FW429 60KB + 256B Flash Memory, 2KB?RAM

? Available in 64-Pin Quad Flat Pack (QFP)
? For Complete Module Descriptions, See the , Literature Number SLAU056