Texas Instruments MSP430F5419AIZCAT

Overview

MSP430F5419AIZCAT 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 (dual UART/IrDA/SPI + dual I²C/SPI), and RTC functionality. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable measurement devices.

For engineers reviewing the MSP430F5419AIZCAT datasheet, MSP430F5419AIZCAT pinout, MSP430F5419AIZCAT application, or MSP430F5419AIZCAT equivalent, key selection criteria include standby current (1.7 µA in LPM3), wake-up time (3.5 µs), ADC resolution and channel count, USCI interface flexibility, and nFBGA-113 package compatibility with space-constrained PCB layouts.

Technical Context

The MSP430F5419AIZCAT integrates a digitally controlled oscillator (DCO) with FLL stabilization, supports multiple clock sources (32-kHz crystal, up to 32-MHz high-frequency crystal, VLO, REFO), and features a unified clock system with MCLK, SMCLK, and ACLK domains. Its power management includes an integrated LDO with programmable core voltage and supply supervision with brownout detection.

Peripherals are tightly coupled to low-power modes: the RTC remains active in LPM3 with full RAM retention; DMA enables autonomous data movement between ADC, USCI, and memory without CPU intervention; and Timer_B provides seven capture/compare registers for complex PWM or input capture timing tasks.

Key Specifications

Pinout & Package

nFBGA-113 package (7 mm × 7 mm, 0.5 mm pitch), ball-grid layout optimized for high-density PCB routing and thermal performance in compact industrial and portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5419AIZCAT, MSP430F5438AIZCA offers double flash capacity without sacrificing power or timing performance, while MSP430F5418AIPN trades package complexity and interface count for manufacturing simplicity - enabling tiered design strategies across development, pilot, and volume production phases.

Availability

MSP430F5419AIZCAT is available at Aetrix Electronics and suitable for remote sensor nodes, digital thermostats, hand-held meters, and industrial timer modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature and voltage ranges.

Supply support for MSP430F5419AIZCAT 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 delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.

The MSP430F5419AIZCAT belongs to TI's MSP430F5xx ultra-low-power MCU family, engineered specifically for extended-battery-life portable instrumentation, sensor fusion, and energy-harvesting applications where sub-µA sleep currents and fast wake-up are mandatory.

FAQ

What is the maximum system clock frequency supported by the MSP430F5419AIZCAT?

The MSP430F5419AIZCAT supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is validated across the full operating voltage range (1.8 V to 3.6 V) and temperature range (–40°C to 85°C), enabling deterministic real-time execution for time-critical sensor processing and control loops within the MSP430F5419AIZCAT architecture.

Does the MSP430F5419AIZCAT support crystal oscillators above 32 kHz?

Yes, the MSP430F5419AIZCAT supports high-frequency crystals up to 32 MHz on the XT2 oscillator circuit (pins P5.2/XT2IN and P5.3/XT2OUT). The XT1 circuit supports 32.768-kHz crystals for RTC accuracy. Both oscillators are fully integrated with automatic gain control and startup supervision, and their outputs feed the unified clock system for MCLK, SMCLK, and ACLK derivation in the MSP430F5419AIZCAT.

How many analog input channels does the ADC12_A module in the MSP430F5419AIZCAT support?

The ADC12_A module in the MSP430F5419AIZCAT supports 16 total input channels: 14 external analog inputs (A0–A15, with A10/A11 reserved) and 2 internal channels (temperature sensor and VCC/2). Channel mapping is fixed per pin assignment (e.g., P6.4 = A4, P7.7 = A15), and the autoscan feature allows sequential conversion across any enabled subset without CPU intervention - a core capability of the MSP430F5419AIZCAT ADC subsystem.

Is the MSP430F5419AIZCAT pin-compatible with other devices in the MSP430F54xx family?

The MSP430F5419AIZCAT shares identical pinout and ball assignment with MSP430F5438AIZCA and MSP430F5436AIZCA in the 113-ball nFBGA (ZCA) package, including signal names, power/ground distribution, and debug interface placement. This enables direct PCB reuse across variants differing only in flash size (128 KB vs. 256 KB) and USCI count - a verified mechanical and electrical compatibility confirmed in TI's SLAS655H datasheet for the MSP430F5419AIZCAT and related devices.

What debug interface does the MSP430F5419AIZCAT use, and what pins are required?

The MSP430F5419AIZCAT uses the 2-wire Spy-Bi-Wire (SBW) interface for programming and debugging, requiring only two dedicated pins: TEST/SBWTCK (ball K11) and SBWTDIO (ball A10, shared with RST/NMI). This eliminates the need for a full 4-wire JTAG connector, reducing PCB footprint and test point count while maintaining full flash erase, breakpoint, and register visibility capabilities - standard across all MSP430F5419AIZCAT production units.