MSP430F4491

LQFP (PZ)

100

256 mm² 16 x 16

Low Supply-Voltage Range, 1.8 V to 3.6 V
Ultralow-Power Consumption:
- Active Mode: 280 µA at 1 MHz, 2.2 V
- Standby Mode: 1.1 µA
- Off Mode (RAM Retention): 0.1 µA
Five Power Saving Modes
Wake-Up From Standby Mode in Less Than 6 µs
16-Bit RISC Architecture, 125-ns Instruction Cycle Time
12-Bit A/D Converter With Internal Reference, Sample-and-Hold and
Autoscan Feature
16-Bit Timer_B With Three⁽¹⁾ or Seven⁽²⁾ Capture/Compare-With-Shadow Registers
16-Bit Timer_A With Three Capture/Compare Registers
On-Chip Comparator
Serial Communication Interface (USART), Select Asynchronous UART or
Synchronous SPI by Software:
- Two USARTs (USART0, USART1)⁽¹⁾
- One USART (USART0)⁽²⁾
Brownout Detector
Supply Voltage Supervisor/Monitor With Programmable Level Detection
Serial Onboard Programming, No External Programming Voltage Needed
Programmable Code Protection by Security Fuse
Integrated LCD Driver for up to 160 Segments
Bootstrap Loader
Family Members Include:
- MSP430F435, MSP430F4351⁽³⁾:
  - 16KB+256B Flash Memory
  - 512B RAM
- MSP430F436, MSP430F4361⁽³⁾:
  - 24KB+256B Flash Memory
  - 1KB RAM
- MSP430F437, MSP430F4371⁽³⁾:
  - 32KB+256B Flash Memory
  - 1KB RAM
- MSP430F447:
  - 32KB+256B Flash Memory
  - 1KB RAM
- MSP430F448, MSP430F4481⁽³⁾:
  - 48KB+256B Flash Memory
  - 2KB RAM
- MSP430F449, MSP430F4491⁽³⁾:
  - 60KB+256B Flash Memory
  - 2KB RAM
For Complete Module Descriptions, See The MSP430x4xx Family User’s Guide, Literature Number SLAU056

⁽¹⁾ MSP430F43x, and MSP430F43x1 devices
⁽²⁾ MSP430F44x, and MSP430F44x1 devices
⁽³⁾ The MSP430F43x1 and MSP430F44x1 devices are identical to the MSP430F43x and MSP430F44x devices, respectively – with the exception that the ADC12 module is not implemented.

Low Supply-Voltage Range, 1.8 V to 3.6 V
Ultralow-Power Consumption:
- Active Mode: 280 µA at 1 MHz, 2.2 V
- Standby Mode: 1.1 µA
- Off Mode (RAM Retention): 0.1 µA
Five Power Saving Modes
Wake-Up From Standby Mode in Less Than 6 µs
16-Bit RISC Architecture, 125-ns Instruction Cycle Time
12-Bit A/D Converter With Internal Reference, Sample-and-Hold and
Autoscan Feature
16-Bit Timer_B With Three⁽¹⁾ or Seven⁽²⁾ Capture/Compare-With-Shadow Registers
16-Bit Timer_A With Three Capture/Compare Registers
On-Chip Comparator
Serial Communication Interface (USART), Select Asynchronous UART or
Synchronous SPI by Software:
- Two USARTs (USART0, USART1)⁽¹⁾
- One USART (USART0)⁽²⁾
Brownout Detector
Supply Voltage Supervisor/Monitor With Programmable Level Detection
Serial Onboard Programming, No External Programming Voltage Needed
Programmable Code Protection by Security Fuse
Integrated LCD Driver for up to 160 Segments
Bootstrap Loader
Family Members Include:
- MSP430F435, MSP430F4351⁽³⁾:
  - 16KB+256B Flash Memory
  - 512B RAM
- MSP430F436, MSP430F4361⁽³⁾:
  - 24KB+256B Flash Memory
  - 1KB RAM
- MSP430F437, MSP430F4371⁽³⁾:
  - 32KB+256B Flash Memory
  - 1KB RAM
- MSP430F447:
  - 32KB+256B Flash Memory
  - 1KB RAM
- MSP430F448, MSP430F4481⁽³⁾:
  - 48KB+256B Flash Memory
  - 2KB RAM
- MSP430F449, MSP430F4491⁽³⁾:
  - 60KB+256B Flash Memory
  - 2KB RAM
For Complete Module Descriptions, See The MSP430x4xx Family User’s Guide, Literature Number SLAU056

The Texas Instruments MSP430 family of ultralow 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 devices feature 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
6 µs.

The MSP430x43x(1) and the MSP430x44x(1) series are microcontroller configurations with two built-in 16-bit timers, a fast 12-bit A/D converter (not implemented on the MSP430F43x1 and MSP430F44x1 devices), one or two universal serial synchronous/asynchronous communication interfaces (USART), 48 I/O pins, and a liquid crystal driver (LCD) with up to 160 segments.

Typical applications include sensor systems that capture analog signals, convert them to digital values, and process and transmit the data to a host system, or process this data and display it on a LCD panel. The timers make the configurations ideal for industrial control applications such as ripple counters, digital motor control, EE-meters, hand-held meters, etc. The hardware multiplier enhances the performance and offers a broad code and hardware-compatible family solution.

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Technical documentation

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	Type	Title	Date
*	Data sheet	MSP430x43x, MSP430x43x1, MSP430x44x Mixed Signal Microcontroller datasheet (Rev. G)	03 Oct 2009
*	Errata	MSP430F4491 Microcontroller Errata (Rev. H)	23 Jun 2021
*	User guide	MSP430x4xx Family User's Guide (Rev. L)	12 Dec 2017
	Application note	ESD Diode Current Specification (Rev. B)	23 Aug 2021
	User guide	MSP430 MCUs Development Guide Book (Rev. A)	13 May 2021
	Technical article	A world of possibilities: 5 ways to use MSP430™︎ MCUs in your design	29 Apr 2021
	Application note	MSP430 Embedded Application Binary Interface (Rev. A)	02 Jun 2020
	Application note	MSP430 System ESD Troubleshooting Guide	13 Dec 2019
	Application note	Programming a Flash-Based MSP430 MCU Using the JTAG Interface (Rev. H)	15 Mar 2019
	Application note	Interfacing the 3-V MSP430 MCU to 5-V Circuits (Rev. A)	03 Oct 2018
	Application note	MSP430 Flash Memory Characteristics (Rev. B)	24 Aug 2018
	Application note	Understanding MSP430 Flash Data Retention (Rev. A)	24 Aug 2018
	Application note	Mixing C and Assembler With MSP430™ MCUs (Rev. A)	07 Aug 2018
	Application note	Using the TPS3619 With MSP430 Microcontrollers (Rev. B)	06 Aug 2018
	Application note	MSP430 LFXT1 Oscillator Accuracy (Rev. A)	03 Aug 2018
	Application note	Efficient Multiplication and Division Using MSP430 MCUs (Rev. A)	18 Jul 2018
	Application note	CRC Implementation with MSP430 MCUs (Rev. A)	21 Jun 2018
	Application note	Implementing a Direct Thermocouple Interface With the MSP430F4xx and ADS1240 (Rev. B)	29 May 2018
	Application note	Implementing An Ultra-Low-Power Keypad Interface With MSP430 MCUs (Rev. A)	22 May 2018
	Application note	Li-Ion Battery Charger Solution Using an MSP430™ MCU (Rev. A)	18 May 2018
	Application note	Random Number Generation Using MSP430™ MCUs (Rev. A)	16 May 2018
	Application note	Wave Digital Filtering Using an MSP430 MCU (Rev. A)	16 May 2018
	Application note	Software Coding Techniques for MSP430™ MCUs (Rev. B)	14 Mar 2018
	Application note	MSP430 32-kHz Crystal Oscillators (Rev. D)	18 Jul 2017
	Application note	Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F)	06 Sep 2016
	Application note	MSP Code Protection Features	07 Dec 2015
	Application note	Designing With MSP430™ MCUs and Segment LCDs (Rev. A)	20 Jul 2015
	Application note	Driving Large LCDs with LCD Peripheral of the MSP430 (Rev. A)	12 Apr 2013
	Application note	Use of Two MSP430s to Enhance Segment Lines for Larger LCDs (Rev. A)	12 Apr 2013
	Application note	Design Considerations When Using the MSP430 Graphics Library	05 Oct 2012
	White paper	Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D)	28 Mar 2012
	Application note	Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C)	12 Jan 2012
	Application note	1.8V – 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B)	14 Jun 2010
	Application note	Tiny DCDC Converter Reference Design (Rev. A)	14 Jun 2010

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