Texas Instruments MSP430F2419TPN

Overview

MSP430F2419TPN from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 120KB+256B flash, 4KB RAM, 12-bit ADC with internal reference and autoscan, dual USCI_A/USCI_B modules supporting UART/IrDA/SPI/I²C, and two 16-bit timers (Timer_A3 and Timer_B7) - deployed in portable sensor systems and handheld meters requiring extended battery life.

For engineers reviewing the MSP430F2419TPN datasheet, MSP430F2419TPN pinout, MSP430F2419TPN application, or MSP430F2419TPN equivalent, key selection criteria include LQFP-80 package compatibility, 1.8–3.6 V supply range, <1 µs wake-up from standby, calibrated DCO oscillator, and absence of DAC12/DMA modules compared to F261x variants.

Technical Context

The MSP430F2419TPN implements a 16-bit RISC CPU with constant generators and five low-power modes optimized for battery-powered measurement applications. Its architecture integrates a 12-bit ADC12 with 8-channel input multiplexer, sample-and-hold, and internal voltage reference, alongside two independent USCI modules enabling concurrent UART/IrDA and I²C/SPI communication paths.

It features a 15-bit Timer_A3 with three capture/compare registers and a 16-bit Timer_B7 with seven capture/compare registers plus shadow registers - both synchronized to SMCLK, ACLK, or external sources. The device lacks DAC12 and DMA controllers present in the F261x series, confirming its role as a cost-optimized variant within the same peripheral framework.

Key Specifications

Pinout & Package

Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, surface-mount, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2418TPN, the MSP430F2419TPN provides greater firmware capacity for enhanced security or protocol stacks; compared with MSP430F2619TPN, it omits DAC/DMA to reduce cost and power in sensor-front-end roles where those functions are unused.

Availability

MSP430F2419TPN is available at Aetrix Electronics and suitable for portable medical devices, industrial process transmitters, and smart utility metering requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant LQFP packaging.

Supply support for MSP430F2419TPN 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 over 50 years of innovation in low-power design.

The MSP430F241x series was designed specifically for ultra-low-power sensing and measurement applications - emphasizing rapid wake-up, integrated analog peripherals, and energy-efficient execution in battery-constrained environments.

FAQ

What is the maximum operating frequency of the MSP430F2419TPN's main clock (MCLK)?

The MSP430F2419TPN supports MCLK frequencies up to 16 MHz using the internal DCO or external XT2 oscillator. The calibrated DCO achieves this without external components, while XT2 requires a 4–16 MHz crystal. This enables high-speed ADC sampling (up to 200 kSPS with oversampling) and fast UART baud rates - all while maintaining ultra-low power in active mode. The MSP430F2419TPN datasheet specifies fMCLK ≤ 16 MHz under recommended operating conditions.

Does the MSP430F2419TPN include a hardware real-time clock (RTC) module?

No, the MSP430F2419TPN does not integrate a dedicated RTC module. However, it supports RTC functionality using the 32.768 kHz LFXT1 crystal oscillator with Timer_A3 or Timer_B7 configured in calendar mode - leveraging the built-in 16-bit counters and interrupt capability. This implementation requires software initialization but delivers accurate timekeeping with minimal additional firmware overhead. The MSP430F2419TPN's low-power LPM3 mode maintains LFXT1 operation while drawing only ~1.2 µA.

Can the MSP430F2419TPN perform simultaneous UART and I²C communication?

Yes, the MSP430F2419TPN supports concurrent UART and I²C communication using its four USCI modules: USCI_A0 and USCI_A1 operate in UART/IrDA/SPI modes, while USCI_B0 and USCI_B1 support I²C/SPI. For example, USCI_A0 can handle UART communication with a host MCU, while USCI_B0 manages I²C transactions with local sensors or EEPROM - all without CPU intervention due to DMA-ready USCI FIFOs and interrupt-driven operation. This capability is confirmed in the MSP430F2419TPN functional block diagram and USCI register mapping.

What is the ADC input voltage range when using the internal reference on the MSP430F2419TPN?

When using the internal 2.5 V reference (VeREF+), the MSP430F2419TPN's ADC12 accepts input voltages from 0 V to 2.5 V - providing a full-scale 12-bit resolution of 610 µV per LSB. The device also supports external reference inputs (VREF+/VREF−) and ratiometric operation using AVCC/AVSS. Input channels are configurable for single-ended or differential acquisition, and the autoscan feature allows sequential conversion of up to 8 channels without software polling - a key capability documented in Section 8.45 of the MSP430F2419TPN datasheet.

Is the MSP430F2419TPN pin-compatible with other devices in the MSP430F241x family?

Yes, the MSP430F2419TPN in the 80-pin LQFP (PN) package shares identical pinout and electrical characteristics with MSP430F2416TPN, MSP430F2417TPN, and MSP430F2418TPN - all members of the F241x series. This allows direct substitution within the same package variant, provided firmware accommodates differences in flash size (92KB–120KB) and RAM (4KB–8KB). Pin compatibility is verified in TI's Device Comparison Table (SLAS541M, Table 6-1) and functional block diagrams for PN-package devices.