Product
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MSP430F6659
  • MSP430F6659
  • MSP430F6659

MSP430F6659

ACTIVE

20 MHz MCU with 512KB Flash, 64KB SRAM, 12-bit ADC, 12-bit DAC, comparator, DMA, 160 seg LCD, USB

Texas Instruments MSP430F6659 Product Info

1 April 2026 0

Parameters

CPU

MSP430

Frequency (MHz)

20

Flash memory (kByte)

512

RAM (kByte)

64

ADC type

12-bit SAR

Features

DAC, LCD, Real-time clock

UART

3

Number of ADC channels

12

SPI

6

USB

Yes

Hardware accelerators

0

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Communication interface

I2C, SPI, UART, USB

Operating system

BareMetal (No OS), TI RTOS

Nonvolatile memory (kByte)

512

Number of GPIOs

74

Number of I2Cs

3

Security

Secure debug

Package

LQFP (PZ)-100-256 mm² 16 x 16

Features

  • Low supply voltage range: 3.6 V down to 1.8 V
  • Ultra-low power consumption
    • Active mode (AM): All system clocks active: 295 µA/MHz at 8 MHz, 3.0 V, flash program execution (typical)
    • Standby mode (LPM3): Watchdog with crystal, and supply supervisor operational, full RAM retention, fast wakeup: 2.0 µA at 2.2 V, 2.2 µA at 3.0 V (typical)
    • Shutdown, real-time clock (RTC) mode (LPM3.5): Shutdown mode, active RTC with crystal: 1.1 µA at 3.0 V (typical)
    • Shutdown mode (LPM4.5): 0.45 µA at 3.0 V (typical)
  • Wake up from standby mode in 3 µs (typical)
  • 16-bit RISC architecture, extended memory, up to 20-MHz system clock
  • Flexible power-management system
    • Fully integrated LDO with programmable regulated core supply voltage
    • Supply voltage supervision, monitoring, and brownout
  • Unified clock system
    • FLL control loop for frequency stabilization
    • Low-power low-frequency internal clock source (VLO)
    • Low-frequency trimmed internal reference source (REFO)
    • 32-kHz crystals (XT1)
    • High-frequency crystals up to 32 MHz (XT2)
  • Four 16-bit timers with 3, 5, or 7 capture/compare registers
  • Three universal serial communication interfaces (USCIs)
    • USCI_A0, USCI_A1, and USCI_A2 each support:
      • Enhanced UART with automatic baud-rate detection
      • IrDA encoder and decoder
      • Synchronous SPI
    • USCI_B0, USCI_B1, and USCI_B2 each support:
      • I2C
      • Synchronous SPI
  • Full-speed universal serial bus (USB)
    • Integrated USB-PHY
    • Integrated 3.3-V and 1.8-V USB power system
    • Integrated USB-PLL
    • Eight input and eight output endpoints
  • 12-bit analog-to-digital converter (ADC) with internal shared reference, sample-and-hold, and autoscan feature
  • Two 12-bit digital-to-analog converters (DACs) with synchronization
  • Voltage comparator
  • Integrated LCD driver with contrast control for up to 160 segments
  • Hardware multiplier supports 32-bit operations
  • Serial onboard programming, no external programming voltage needed
  • 6-channel internal DMA
  • RTC module with supply voltage backup switch
  • Device Comparison summarizes the available family members
  • Low supply voltage range: 3.6 V down to 1.8 V
  • Ultra-low power consumption
    • Active mode (AM): All system clocks active: 295 µA/MHz at 8 MHz, 3.0 V, flash program execution (typical)
    • Standby mode (LPM3): Watchdog with crystal, and supply supervisor operational, full RAM retention, fast wakeup: 2.0 µA at 2.2 V, 2.2 µA at 3.0 V (typical)
    • Shutdown, real-time clock (RTC) mode (LPM3.5): Shutdown mode, active RTC with crystal: 1.1 µA at 3.0 V (typical)
    • Shutdown mode (LPM4.5): 0.45 µA at 3.0 V (typical)
  • Wake up from standby mode in 3 µs (typical)
  • 16-bit RISC architecture, extended memory, up to 20-MHz system clock
  • Flexible power-management system
    • Fully integrated LDO with programmable regulated core supply voltage
    • Supply voltage supervision, monitoring, and brownout
  • Unified clock system
    • FLL control loop for frequency stabilization
    • Low-power low-frequency internal clock source (VLO)
    • Low-frequency trimmed internal reference source (REFO)
    • 32-kHz crystals (XT1)
    • High-frequency crystals up to 32 MHz (XT2)
  • Four 16-bit timers with 3, 5, or 7 capture/compare registers
  • Three universal serial communication interfaces (USCIs)
    • USCI_A0, USCI_A1, and USCI_A2 each support:
      • Enhanced UART with automatic baud-rate detection
      • IrDA encoder and decoder
      • Synchronous SPI
    • USCI_B0, USCI_B1, and USCI_B2 each support:
      • I2C
      • Synchronous SPI
  • Full-speed universal serial bus (USB)
    • Integrated USB-PHY
    • Integrated 3.3-V and 1.8-V USB power system
    • Integrated USB-PLL
    • Eight input and eight output endpoints
  • 12-bit analog-to-digital converter (ADC) with internal shared reference, sample-and-hold, and autoscan feature
  • Two 12-bit digital-to-analog converters (DACs) with synchronization
  • Voltage comparator
  • Integrated LCD driver with contrast control for up to 160 segments
  • Hardware multiplier supports 32-bit operations
  • Serial onboard programming, no external programming voltage needed
  • 6-channel internal DMA
  • RTC module with supply voltage backup switch
  • Device Comparison summarizes the available family members

Description

The TI MSP family of ultra-low-power microcontrollers consists of several devices that feature 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 3 µs (typical).

The MSP430F665x and MSP430F565x series are microcontroller configurations with four 16-bit timers, a high-performance 12-bit ADC, three USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, a comparator, USB 2.0, and up to 74 I/O pins.

The MSP430F645x and MSP430F535x series are microcontroller configurations with an integrated 3.3-V LDO, four 16-bit timers, a high-performance 12-bit ADC, three USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, a comparator, and up to 74 I/O pins.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.

The TI MSP family of ultra-low-power microcontrollers consists of several devices that feature 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 3 µs (typical).

The MSP430F665x and MSP430F565x series are microcontroller configurations with four 16-bit timers, a high-performance 12-bit ADC, three USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, a comparator, USB 2.0, and up to 74 I/O pins.

The MSP430F645x and MSP430F535x series are microcontroller configurations with an integrated 3.3-V LDO, four 16-bit timers, a high-performance 12-bit ADC, three USCIs, a hardware multiplier, DMA, an RTC module with alarm capabilities, a comparator, and up to 74 I/O pins.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User’s Guide.

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