Texas Instruments MSP430FG4619IPZ

Overview

MSP430FG4619IPZ from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 120KB+256B flash, 4KB RAM, a 12-bit ADC with 12 channels, dual 12-bit DACs, three configurable op-amps, integrated LCD driver (160 segments), and dual 16-bit timers (Timer_A3 and Timer_B7) - designed for portable medical devices and electronic metering applications requiring extended battery life and on-chip analog signal conditioning.

For engineers reviewing the MSP430FG4619IPZ datasheet, MSP430FG4619IPZ pinout, MSP430FG4619IPZ application, or MSP430FG4619IPZ equivalent, key selection considerations include its LQFP-100 package with 80 I/O pins, regulated LCD charge pump, USCI_A0/USCI_B0 interfaces (UART/I²C/SPI), and hardware DMA support for low-CPU-overhead sensor data acquisition and display control.

Technical Context

The MSP430FG4619IPZ implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from LPM3 standby mode. Its memory-mapped peripherals include dedicated registers for LCD_A, ADC12, DAC12, and USCI modules, all accessible via unified address space.

It integrates two independent serial interfaces: USCI_A0 supporting UART, IrDA, and SPI; and USCI_B0 supporting SPI and I²C. The ADC12 uses internal reference or external VeREF± inputs, while DAC12 outputs are synchronized and voltage-driven, with dedicated pins (P6.6/DAC0, P6.7/DAC1) and programmable output buffers.

Key Specifications

Pinout & Package

LQFP-100 package (14 mm × 14 mm), thermally enhanced with exposed pad; 80 general-purpose I/O pins, 4 dedicated analog supply pins (AVCC/AVSS), 2 digital supply pairs (DVCC1/DVSS1, DVCC2/DVSS2), and 12 dedicated LCD segment/common pins plus LCDCAP.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Compared with MSP430FG4618IPZ and MSP430FG4617IPZ, the MSP430FG4619IPZ provides the largest flash capacity (120KB) in the FG461x family while retaining identical 4KB RAM, full peripheral complement, and LQFP-100 pinout - making it the optimal choice for new designs requiring long-term firmware scalability and feature expansion.

Availability

MSP430FG4619IPZ is available at Aetrix Electronics and suitable for portable medical devices, smart energy meters, and industrial sensor nodes requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430FG4619IPZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power design and industrial-grade reliability.

The MSP430FG4619IPZ belongs to TI's MSP430xG461x microcontroller family, engineered specifically for battery-operated measurement systems demanding high analog integration, minimal active/standby power, and on-chip display control - targeting medical, utility, and environmental monitoring applications.

FAQ

What is the maximum operating frequency of the MSP430FG4619IPZ core?

The MSP430FG4619IPZ features a digitally controlled oscillator (DCO) that supports system clock frequencies up to 8 MHz. At 1 MHz and 2.2 V, active-mode current is specified at 400 µA. Higher frequencies increase power consumption but reduce task execution time - critical for burst-mode sensor acquisition before returning to LPM3.

Does the MSP430FG4619IPZ support I²C communication?

Yes, the MSP430FG4619IPZ supports I²C via USCI_B0 module (pins P3.2/UCB0SCL and P3.1/UCB0SDA). It operates in standard-mode (100 kbps) and fast-mode (400 kbps) with automatic clock stretching and 7-bit/10-bit addressing - enabling direct interface with temperature sensors, EEPROMs, or PMICs without external level shifters.

How many LCD segments can the MSP430FG4619IPZ drive, and what voltage regulation is provided?

The MSP430FG4619IPZ drives up to 160 LCD segments using its integrated LCD_A module. It includes a regulated charge pump (enabled via LCDCPEN bit) that generates VLCD from DVCC, requiring only an external 2.2 µF capacitor on the LCDCAP pin - eliminating need for external DC-DC converters in portable displays.

What are the key differences between MSP430FG4619IPZ and MSP430CG4619IPZ?

The MSP430FG4619IPZ contains 120KB+256B flash memory, while the MSP430CG4619IPZ substitutes ROM for flash (120KB ROM). Both share identical RAM (4KB), peripherals, pinout, and electrical specs - but the FG variant supports in-system programming and field firmware updates, whereas CG is mask-programmed at fabrication.

Can the MSP430FG4619IPZ operate from a single 3.3-V supply?

Yes, the MSP430FG4619IPZ operates across 1.8 V to 3.6 V. At 3.3 V, it delivers full functionality including 12-bit ADC accuracy, DAC linearity, and LCD charge pump regulation. Supply current scales linearly - active mode draws ~580 µA at 3.3 V/1 MHz - making it compatible with standard 3.3-V LDOs and battery stacks.