●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.
●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 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