Texas Instruments MSP430F5419AIZQWR

Overview

MSP430F5419AIZQWR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 128 KB flash, 16 KB RAM, 12-bit ADC (14 external + 2 internal channels), three 16-bit timers (TA0/TA1/TB0), four USCI modules (2 UART/IrDA/SPI + 2 I²C/SPI), and RTC functionality - deployed in battery-powered sensor nodes and portable meters requiring sub-2 µA standby current and 3.5 µs wake-up.

For engineers reviewing the MSP430F5419AIZQWR datasheet, MSP430F5419AIZQWR pinout, MSP430F5419AIZQWR application, or MSP430F5419AIZQWR equivalent, key selection criteria include LPM3 current (1.7 µA @ 2.2 V), MicroStar Junior™ BGA-113 package compatibility, 87 GPIO count, integrated LDO core regulation, and dual-USCI support for simultaneous UART + I²C communication in space-constrained designs.

Technical Context

The MSP430F5419AIZQWR implements a unified clock system with FLL-based frequency stabilization, supporting up to 25 MHz system clock via XT2 (up to 32 MHz) or DCO; its power-management subsystem includes programmable LDO output (1.3–1.45 V core), SVS/SVM monitoring, and brownout reset. The CPUXV2 core executes instructions at single-cycle speed with constant generators for optimized code density.

Peripherals are memory-mapped and interrupt-driven: ADC12_A supports autoscan across 16 channels with internal reference (1.5 V/2.5 V); Timer_B0 provides seven capture/compare registers with shadowing for glitch-free PWM; USCI_Ax modules deliver enhanced UART with automatic baud-rate detection and IrDA encoding; USCI_Bx modules support multimaster I²C with timeout detection and synchronous SPI with 3-pin mode.

Key Specifications

Pinout & Package

Package: MicroStar Junior™ BGA-113 (7 mm × 7 mm, 0.5 mm pitch). Pin mapping validated per TI SLAS655H Figure 7-3 and Table 7-1 for ZQW variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5438AIZQW, the MSP430F5419AIZQWR offers 40% smaller footprint and lower cost for fixed-function applications, while MSP430F5419AIPZ trades miniaturization for assembly flexibility - all share identical low-power architecture and peripheral timing behavior.

Availability

MSP430F5419AIZQWR is available at Aetrix Electronics and suitable for smart thermostat sensor nodes, portable hand-held meters, digital motor control interfaces, and remote IR-controlled appliance hubs requiring stable component supply and long-term industrial availability.

Supply support for MSP430F5419AIZQWR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets since 1930.

The MSP430F5419AIZQWR belongs to TI's MSP430F5xx ultra-low-power microcontroller family, designed specifically for energy-harvesting and battery-operated measurement systems where nanowatt-level sleep modes and fast wake-up are mandatory.

FAQ

What is the maximum operating frequency of the MSP430F5419AIZQWR?

The MSP430F5419AIZQWR supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization using either internal reference (REFO) or external crystals (XT1/XT2). This frequency is confirmed in the device's electrical specifications (Section 8.20 of SLAS655H) and enables real-time processing of sensor data and protocol stacks without compromising ultra-low-power operation.

Does the MSP430F5419AIZQWR support hardware real-time clock (RTC) functionality?

Yes, the MSP430F5419AIZQWR integrates RTC_A - a calendar-mode real-time clock with alarm capability, battery-backed operation, and direct connection to the 32-kHz XT1 oscillator. It supports time-of-day tracking, periodic interrupts, and wake-up from LPM3/LPM4, as documented in Section 9.9 of the Family User's Guide and verified in the functional block diagram (Figure 4-1).

How many I/O pins does the MSP430F5419AIZQWR provide in the ZQW package?

The MSP430F5419AIZQWR in the MicroStar Junior™ BGA-113 (ZQW) package provides 87 general-purpose I/O pins, consistent with the MSP430F5438A and MSP430F5436A variants in the same package. This count is explicitly stated in Table 6-1 (Device Characteristics) and confirmed by pin enumeration in Figure 7-3 and Table 7-1 of SLAS655H.

What ADC resolution and sampling rate does the MSP430F5419AIZQWR offer?

The MSP430F5419AIZQWR features a 12-bit successive-approximation ADC (ADC12_A) with a maximum sampling rate of 200 ksps, 14 external analog inputs, and 2 internal channels (temperature sensor and VCC/2). These specifications are defined in Section 1 (Features) and detailed in Section 8.36–8.40 of SLAS655H, enabling high-fidelity sensor acquisition in portable instrumentation.

Is the MSP430F5419AIZQWR pin-compatible with other devices in the MSP430F54xx family?

Within the same package type, the MSP430F5419AIZQWR is pin-compatible with MSP430F5438AIZQW and MSP430F5436AIZQW - all share identical ZQW pinout, signal assignments, and power/ground ball locations per Figure 7-3 and Table 7-1. However, it is not pin-compatible with PN or PZ package variants due to differing ball/pin counts and layouts.