Texas Instruments MSP430F2619TPN

Overview

MSP430F2619TPN from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 120KB+256B flash, 4KB RAM, dual 12-bit DACs, 12-bit ADC with autoscan, three-channel DMA, and four USCI modules (dual UART/IrDA/SPI + dual I²C/SPI). It operates from 1.8 V to 3.6 V and supports sub-1 µs wake-up from standby-ideal for battery-powered sensor nodes and portable medical meters.

For engineers reviewing the MSP430F2619TPN datasheet, MSP430F2619TPN pinout, MSP430F2619TPN application, or MSP430F2619TPN equivalent, key selection criteria include its LQFP-80 package, integrated DAC/ADC co-processing capability, calibrated DCO for fast low-power timing recovery, and support for simultaneous multi-protocol serial communication in space-constrained embedded systems.

Technical Context

The MSP430F2619TPN implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency in measurement firmware. Its clock system integrates a calibrated DCO (up to 16 MHz), LFXT1 (32 kHz crystal), HF XT2 (4–16 MHz), and VLO oscillator-enabling flexible power/performance trade-offs across five low-power modes.

Peripherals are tightly synchronized via shared clock domains: ADC12 uses SMCLK or ADC12OSC; DAC12 outputs are voltage-mode with internal reference routing; Timer_B7 provides seven capture/compare registers with shadow registers for glitch-free PWM updates; and DMA channels offload data movement between ADC, DAC, USCI, and memory without CPU intervention.

Key Specifications

Pinout & Package

The MSP430F2619TPN is housed in an 80-pin LQFP (PN) package with 0.5 mm pitch, exposing all core peripherals including dual DAC outputs (P6.6/DAC0, P6.7/DAC1), ADC inputs (P6.0–P6.7), USCI signal groups, JTAG debug interface, and dual crystal oscillator connections (XIN/XOUT, XT2IN/XT2OUT).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2618TPM, the MSP430F2619TPN offers larger flash for feature-rich firmware and full 80-pin I/O access; versus MSP430F2419TPN, it adds essential DAC and DMA functionality for closed-loop analog control and high-throughput sensor data handling-making it the only option among the three supporting synchronized dual-DAC waveform generation.

Availability

MSP430F2619TPN is available at Aetrix Electronics and suitable for portable medical meters, industrial sensor nodes, and energy metering subsystems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for MSP430F2619TPN 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 microcontroller innovation.

The MSP430F2619TPN belongs to TI's ultra-low-power mixed-signal MCU product line, designed specifically for battery-operated measurement and sensing applications where nanowatt-level standby current and sub-millisecond wake-up are mandatory design requirements.

FAQ

What is the maximum operating frequency of the MSP430F2619TPN?

The MSP430F2619TPN supports a maximum CPU clock frequency of 16 MHz via its calibrated digitally controlled oscillator (DCO). This frequency is achievable in active mode with appropriate clock source configuration (e.g., DCO+ divider) and meets all timing specifications under recommended operating conditions of 1.8 V to 3.6 V supply and ambient temperature up to 85°C. The MSP430F2619TPN does not require external crystals to reach this speed, though XT2 can be used for higher stability.

Does the MSP430F2619TPN support hardware UART autobaud detection?

Yes, the MSP430F2619TPN supports hardware UART autobaud detection through its USCI_A modules (USCI_A0 and USCI_A1). This feature allows automatic determination of incoming serial bit rate by measuring the duration of the start bit, enabling robust communication with hosts transmitting at unknown or variable baud rates-particularly useful in field-upgrade and diagnostic interfaces. The MSP430F2619TPN implements this in firmware-accessible control registers without CPU polling overhead.

How many I²C interfaces does the MSP430F2619TPN provide?

The MSP430F2619TPN provides two dedicated I²C interfaces via USCI_B0 and USCI_B1 modules. Each supports standard-mode (100 kbps) and fast-mode (400 kbps) operation, slave and master roles, 7-bit and 10-bit addressing, and clock stretching. These interfaces operate independently, allowing the MSP430F2619TPN to communicate concurrently with multiple I²C sensors or peripherals-for example, reading temperature from one device while configuring EEPROM on another.

What is the purpose of the VeREF+ pin on the MSP430F2619TPN?

The VeREF+ pin on the MSP430F2619TPN serves as the positive reference input for the internal 12-bit DAC modules (DAC12). When configured for external reference mode, it accepts a stable voltage (up to AVCC) to define the DAC output range-enabling higher precision or extended voltage swing beyond the internal 2.5 V reference. This pin is shared with P6.4 in the 80-pin LQFP package and must be externally decoupled per datasheet guidelines to maintain DAC linearity. The MSP430F2619TPN requires VeREF+ to be driven only when external DAC referencing is enabled.

Can the MSP430F2619TPN generate simultaneous PWM signals on multiple timers?

Yes, the MSP430F2619TPN can generate simultaneous PWM signals using Timer_A3 (three capture/compare registers) and Timer_B7 (seven capture/compare registers with shadow registers). Shadow register support in Timer_B7 ensures glitch-free period updates, while Timer_A3 provides complementary outputs suitable for motor control. Both timers operate from independent clock sources (e.g., SMCLK, ACLK), allowing asynchronous PWM generation-for instance, driving RGB LED brightness (Timer_A3) while controlling fan speed (Timer_B7) without mutual interference. The MSP430F2619TPN guarantees phase-aligned or offset PWM depending on software synchronization.