MSP430F4794 (ACTIVE)

16-Bit Ultra-Low-Power Microcontroller, 60KB Flash, 2KB RAM, 4 Sigma-Delta ADCs, LCD Driver

16-Bit Ultra-Low-Power Microcontroller, 60KB Flash, 2KB RAM, 4 Sigma-Delta ADCs, LCD Driver - MSP430F4794


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.


  • 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
  • Family Members Include:
    • MSP430F4783: 48KB + 256B Flash
      2KB RAM
      3 Sigma-Delta ADCs
    • MSP430F4793: 60KB + 256B Flash
      2.5KB RAM
      3 Sigma-Delta ADCs
    • MSP430F4784: 48KB + 256B Flash
      2KB RAM
      4 Sigma-Delta ADCs
    • MSP430F4794: 60KB + 256B Flash
      2.5KB RAM
      4 Sigma-Delta ADCs
  • MSP430F47x3 and MSP430F47x4 Available In 100-Pin
    Plastic Quad Flatpack (QFP) Package
  • For Complete Module Descriptions, See the MSP430x4xx Family User’s Guide, Literature Number SLAU056

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Parametrics Compare all products in Other MSP430 MCUs

Non-volatile Memory (KB)
ADC: Channels (#)
GPIO Pins (#)
Comparator Channels (#)
Package Group
Approx. Price (US$)
Timers - 16-bit
MSP430F4794 MSP430F4783 MSP430F4784 MSP430F4793
60     48     48     60    
2.5     2     2     2.5    
16-bit Sigma Delta     16-bit Sigma Delta     16-bit Sigma Delta     16-bit Sigma Delta    
4     3     4     3    
72     72     72     72    
2     2     2     2    
2     2     2     2    
2     2     2     2    
2     2     2     2    
LQFP     LQFP     LQFP     LQFP    
4.30 | 1ku     4.00 | 1ku     4.00 | 1ku     4.30 | 1ku    
No     No     No     No    
2     2     2     2