1FEATURES

2• 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

MSP430x4xx Family User's Guide, Literature

Number SLAU056

APPLICATIONS

• Analog Sensor Systems

• Digital Sensor Systems

• Gas, Heat, or Water Meters

• Industrial Meters

• Hand-Held Meters

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.

参考价格：20.4470

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