MSP430F4794IPZR

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 wake-up from low-power modes to active mode in less than 6μs. The MSP430F47xx series are microcontroller configurations targeted to single phase electricity meters with three or four 16-bit sigma-delta A/D converters. Each channel has a differential input pair and programmable input gain. Also integrated are two 16-bit timers, three universal serial communication interfaces (USCI), 72 I/O pins, and a liquid crystal driver (LCD) with integrated contrast control.

Key features

• Low Supply-Voltage Range, 1.8 V to 3.6 V
• Ultra-Low Power Consumption:
• Active Mode: 280 μA at 1 MHz, 2.2 V
• Standby Mode: 1.1 μA
• Off Mode (RAM Retention): 0.2 μA
• Five Power-Saving Modes
• Wake-Up From Standby Mode in Less Than 6 μs
• 16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time
• Three or Four 16-Bit Sigma-Delta Analog-to-Digital (A/D) Converters With Differential PGA Inputs
• 16-Bit Timer_B With Three Capture/Compare-With-Shadow Registers
• 16-Bit Timer_A With Three Capture/Compare Registers
• On-Chip Comparator
• Four Universal Serial Communication Interfaces (USCI):
• USCI_A0 and USCI_A1
• Enhanced UART Supporting Auto-Baudrate Detection
• IrDA Encoder and Decoder
• Synchronous SPI
• USCI_B0 and USCI_B1
• I2C
• Synchronous SPI
• Integrated LCD Driver With Contrast Control For Up To 160 Segments
• 32-Bit Hardware Multiplier
• Brownout Detector
• Supply Voltage Supervisor/Monitor With Programmable Level Detection
• Serial Onboard Programming, No External Programming Voltage Needed
• Programmable Code Protection by Security Fuse
• Bootstrap Loader
• On Chip Emulation Module