Texas Instruments MSP430F5419AIZQWT
- Part No.:
- MSP430F5419AIZQWT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430F5419AIZQWT.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 113BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MSP430F5419AIZQWT 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 and dual I²C/SPI), RTC, hardware multiplier, and DMA - deployed in battery-powered sensor nodes and portable meters.
For engineers reviewing the MSP430F5419AIZQWT datasheet, MSP430F5419AIZQWT pinout, MSP430F5419AIZQWT application, or MSP430F5419AIZQWT equivalent, key selection criteria include LPM3 standby current (1.7 µA @ 3.0 V), 3.5 µs wakeup time, MicroStar Junior BGA-113 package compatibility, and integrated LDO core regulation for stable low-voltage operation.
Technical Context
The MSP430F5419AIZQWT implements a CPUXV2 core with constant generators and extended memory addressing, supporting up to 25-MHz system clock via FLL-stabilized DCO or external crystals (up to 32 MHz). Its unified clock system provides independent ACLK, SMCLK, and MCLK domains with programmable dividers and multiple low-power oscillator sources (VLO, REFO, XT1, XT2).
Power management integrates a fully programmable LDO supplying regulated VCORE (1.3–1.45 V), supply voltage supervision (SVS/SVM), brownout reset, and five low-power modes (LPM0–LPM4.5) with full RAM retention down to 0.1 µA shutdown current. Peripheral control is handled through dedicated interrupt vectors and DMA-triggered transfers for ADC, USCI, and timers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and extended memory addressing for efficient C code execution |
| Flash / RAM | 128 KB flash (in-system programmable) + 16 KB SRAM for firmware storage and real-time data buffering |
| ADC12_A | 12-bit SAR ADC with 200 ksps sampling, autoscan, 14 external + 2 internal analog inputs, and internal reference |
| Timers | Three 16-bit timers: TA0 (5 CC registers), TA1 (3 CC registers), TB0 (7 CC shadow registers) for PWM, capture, and interval timing |
| USCI Modules | Four USCI peripherals: two USCI_A (UART/IrDA/SPI) and two USCI_B (I²C/SPI) enabling concurrent serial protocols |
| Low-Power Modes | LPM3: 1.7 µA @ 3.0 V with RTC, watchdog, and full RAM retention; LPM4.5: 0.1 µA shutdown with fast wake-up |
| Wakeup Time | 3.5 µs typical from LPM3 to active mode - critical for duty-cycled sensor acquisition and event-driven response |
Pinout & Package
Package: MicroStar Junior™ BGA-113 (ZQW), 7 mm × 7 mm, 0.5-mm pitch, bottom-side thermal pad. Pin mapping follows TI's standardized ZQW ballout for MSP430F5419AIZQWT, compatible with ZCA variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Multi-function I/O | Primary ACLK output source; supports crystal drive (XT1) or external clock input for real-time clock subsystem |
| P2.7/ADC12CLK/DMAE0 | Peripheral signal | ADC conversion clock output; also serves as DMA trigger for automated data transfer without CPU intervention |
| P5.0/A8/VREF+/VeREF+ | Analog I/O | ADC channel A8 input; supplies internal reference voltage or accepts external reference for precision measurement |
| P7.0/XIN & P7.1/XOUT | Clock interface | Low-frequency crystal terminals (32 kHz) for RTC accuracy and ultra-low-power sleep mode timing |
| RST/NMI/SBWTDIO | Control terminal | Reset/NMI input; also functions as JTAG/Spy-Bi-Wire debug interface pin for in-system programming and diagnostics |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LDO regulator | Programmable core voltage (1.3–1.45 V) enables stable operation across 1.8–3.6 V supply range while minimizing external components |
| Hardware multiplier (MPY32) | 32-bit multiply-accumulate operations in single cycle - accelerates filtering, FFT, and sensor fusion algorithms |
| RTC_A module | Real-time clock with calendar mode, alarm interrupts, and battery-backed operation using VLO or 32-kHz crystal |
| 3-channel DMA controller | Enables zero-CPU-overhead data movement between ADC, USCI, RAM, and peripherals - essential for low-power continuous monitoring |
| Ultra-low-power oscillators | VLO (10 kHz typ.) and REFO (32.768 kHz) provide clock sources for LPM3/LPM4 without external crystals |
Applications
| Smart Sensor Node | Portable Handheld Meter |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure at 1-minute intervals with wireless upload. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, RTC-triggered wake-up, SPI communication to sensor ICs, and UART/USCI_A-based BLE module interface. Use Value: 1.7 µA LPM3 current extends 2-AA battery life beyond 5 years; 3.5 µs wake-up ensures precise timing alignment for synchronized multi-sensor reads. | Use Scenario: Field technician uses handheld multimeter with LCD, touch interface, and auto-ranging analog front-end. IC Role / Device Role / Timing Role: Main controller executing measurement algorithms, driving segmented LCD, processing capacitive touch keys, and managing power sequencing. Use Value: Integrated 12-bit ADC with internal reference eliminates external precision voltage reference; hardware multiplier accelerates RMS calculation for AC measurements. |
| Digital Thermostat | Industrial Remote Control |
Use Scenario: Wall-mounted HVAC thermostat with ambient sensing, display, button interface, and Zigbee radio connectivity. IC Role / Device Role / Timing Role: System-on-chip handling temperature acquisition (ADC), user input scanning (GPIO), display refresh (SPI), and radio coexistence timing (USCI_B I²C to transceiver). Use Value: Four USCI modules allow simultaneous UART debug port, I²C radio control, SPI display driver, and IrDA service interface - no resource contention. | Use Scenario: Two-way IR remote with motion detection, button matrix, and encrypted command transmission. IC Role / Device Role / Timing Role: MCU executing IR encoding/decoding (USCI_A UART mode with automatic baud-rate detection), accelerometer interface (I²C), and secure key generation (hardware multiplier). Use Value: Enhanced UART with auto-baud detection simplifies pairing with legacy IR receivers; LPM4.5 (0.1 µA) enables >2-year shelf life on coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5438AIZQW | 256 KB flash, same 16 KB RAM, identical peripherals and pinout in ZQW package | Supports larger firmware images (e.g., OTA updates, cryptographic stacks) without layout change | Select when firmware size exceeds 128 KB or future scalability is required |
| MSP430F5419AIPZ | Same core, flash, RAM, and peripherals but in 100-pin LQFP (14×14 mm) instead of ZQW BGA | Preferred for prototyping, manual assembly, or designs requiring easier test access and rework | Select when board assembly process does not support BGA or debug access is prioritized over footprint size |
Compared with MSP430F5438AIZQW, the MSP430F5419AIZQWT offers reduced flash capacity but identical low-power performance and peripheral integration in the same compact BGA; versus MSP430F5419AIPZ, it delivers identical functionality in a space-constrained form factor ideal for high-volume portable devices.
Availability
MSP430F5419AIZQWT is available at Aetrix Electronics and suitable for smart sensor nodes, portable handheld meters, digital thermostats, and industrial remote controls requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F5419AIZQWT 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.
The MSP430F5419AIZQWT belongs to TI's MSP430F5xx ultra-low-power microcontroller family, designed specifically for energy-constrained applications demanding extended battery life, precision analog integration, and robust real-time control.
FAQ
What is the maximum system clock frequency supported by the MSP430F5419AIZQWT?
The MSP430F5419AIZQWT supports up to 25 MHz system clock frequency using its digitally controlled oscillator (DCO) with FLL stabilization, or up to 32 MHz when driven by an external high-frequency crystal (XT2). This enables high-speed computation while maintaining ultra-low-power operation through dynamic clock gating and adaptive voltage scaling via the integrated LDO.
Does the MSP430F5419AIZQWT include a hardware real-time clock (RTC) module?
Yes, the MSP430F5419AIZQWT includes the RTC_A module with calendar mode, alarm interrupt capability, and battery-backed operation. It can be clocked by the 32-kHz crystal (XT1), internal VLO, or REFO oscillator - allowing accurate timekeeping in LPM3 (1.7 µA) and retaining full functionality during ultra-low-power sleep states.
How many analog input channels does the 12-bit ADC on the MSP430F5419AIZQWT support?
The MSP430F5419AIZQWT features the ADC12_A module with 14 external analog input channels (A0–A15, excluding A10/A11) and 2 internal channels (temperature sensor and VCC/2), totaling 16 selectable inputs. The autoscan feature allows sequential conversion of up to 16 channels without CPU intervention, ideal for multi-sensor systems.
What debug interface does the MSP430F5419AIZQWT use, and is JTAG supported?
The MSP430F5419AIZQWT supports both JTAG and Spy-Bi-Wire (SBW) debug interfaces via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. While full 4-wire JTAG is available on PJ.0–PJ.3, SBW mode (2-wire) is enabled by default and sufficient for programming, debugging, and boundary-scan testing - reducing PCB routing complexity in space-constrained BGA layouts.
Is the MSP430F5419AIZQWT pin-compatible with other devices in the MSP430F54xx family?
Yes, the MSP430F5419AIZQWT shares identical pinout and signal mapping with MSP430F5438AIZQW and MSP430F5436AIZQW in the ZQW package, differing only in flash size (128 KB vs. 256 KB/192 KB). This allows direct substitution in existing PCB designs when firmware size permits, preserving layout, routing, and thermal design integrity.
MSP430F5419AIZQWT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 113-VFBGA
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 87
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5419AIZQWT FAQ
1.How can I place an order for MSP430F5419AIZQWT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5419AIZQWT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F5419AIZQWT reliable?
The price and inventory of MSP430F5419AIZQWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5419AIZQWT is usually 5 days.
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Once your MSP430F5419AIZQWT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F5419AIZQWT?
For technical support, including MSP430F5419AIZQWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5419AIZQWT requirements.
6.How does Aetrix verify that MSP430F5419AIZQWT is sourced from the original manufacturer or authorized distributors?
All MSP430F5419AIZQWT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F5419AIZQWT meets industry standards.
7.What is the process for return or replacement of MSP430F5419AIZQWT?
All MSP430F5419AIZQWT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5419AIZQWT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F5419AIZQWT part is unused and in its original packaging.
Return procedure for MSP430F5419AIZQWT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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