Texas Instruments MSP430F413IRTDT

Overview

MSP430F413IRTDT from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller with 8KB+256B flash, 256B RAM, integrated 96-segment LCD driver, on-chip comparator, and FLL+ clock system. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-1μA standby current. It is used in battery-powered handheld meters and industrial sensor interfaces requiring integrated display control and analog signal conditioning.

For engineers reviewing the MSP430F413IRTDT datasheet, MSP430F413IRTDT pinout, MSP430F413IRTDT application, or MSP430F413IRTDT equivalent, key selection criteria include its QFN-64 (RTD) package, Timer_A3 peripheral with three capture/compare registers, LCD segment drive capability, brownout detection, and JTAG/BSL programmability without external voltage.

Technical Context

The MSP430F413IRTDT implements a 16-bit RISC CPU with constant generators and seven addressing modes, achieving 125-ns instruction cycle time at 1 MHz. Its FLL+ module locks the DCO to multiples of ACLK (e.g., 32.768 kHz crystal), enabling wake-up from LPM4 in under 6 μs.

It integrates Timer_A3 (three capture/compare registers), a single comparator (Comparator_A), and dedicated LCD control logic driving up to 96 segments via 4-backplane (COM0–COM3) and 24-segment (S0–S23) outputs - all mapped to specific I/O pins without PxSEL configuration.

Key Specifications

Pinout & Package

Package: 64-pin QFN (RTD), 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad (to be connected to VSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F412IRTDT, the MSP430F413IRTDT doubles flash capacity without increasing power or changing package, making it ideal for feature-rich firmware; versus MSP430F415IRTDT, it trades flash/RAM headroom for cost and layout simplicity in mid-complexity applications.

Availability

MSP430F413IRTDT is available at Aetrix Electronics and suitable for handheld meters, industrial panel displays, portable medical sensors, and smart utility nodes requiring stable component supply and long-term lifecycle assurance.

Supply support for MSP430F413IRTDT 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 focused on analog, embedded processing, and connectivity technologies, serving industrial, automotive, and consumer markets.

The MSP430x41x product line was designed specifically for ultra-low-power, LCD-integrated measurement applications - emphasizing extended battery life, analog integration, and minimal external component count in portable instrumentation.

FAQ

What is the maximum operating frequency of the MSP430F413IRTDT?

The MSP430F413IRTDT does not specify a maximum system clock frequency in its datasheet; instead, it guarantees correct operation up to 8 MHz MCLK derived from the FLL+. Its 125-ns instruction cycle time corresponds to a 8-MHz CPU clock, and all timing parameters (e.g., flash write, LCD refresh) are validated within this range. The device achieves this using the FLL+ to lock the DCO to ACLK multiples, not via external high-speed crystals.

Does the MSP430F413IRTDT support JTAG debugging?

Yes, the MSP430F413IRTDT supports full JTAG debugging via dedicated pins TCK (Pin 57), TMS (Pin 56), TDI/TCLK (Pin 55), and TDO/TDI (Pin 54). These pins enable boundary-scan testing, flash programming, and real-time emulation using standard TI MSP-FET tools. JTAG functionality remains available even when the BSL is active or security fuse is blown, provided the fuse hasn't disabled JTAG access.

How many LCD segments can the MSP430F413IRTDT drive, and what is the backplane configuration?

The MSP430F413IRTDT drives up to 96 LCD segments using a 4-backplane (COM0–COM3) and 24-segment (S0–S23) configuration. This supports 1:4 multiplexing (24 × 4 = 96). All COM and SEG outputs are hardware-mapped to specific port pins - no software configuration of PxSEL is required; activation is controlled solely by LCD module enable bits in the SFRs.

What is the purpose of the R03, R13, R23, and R33 pins on the MSP430F413IRTDT?

R03 (Pin 40), R13 (Pin 41), R23 (Pin 42), and R33 (Pin 43) are dedicated analog inputs for the internal LCD voltage divider network. They provide the four positive LCD bias voltages (V5, V4/V3, V2, V1) required for static or multiplexed LCD operation. R33 outputs the highest voltage (V1); R03 inputs the lowest (V5). These pins must be connected to external resistor ladder or charge pump circuitry per the LCD bias requirements in SLAS340J.

Can the MSP430F413IRTDT operate without an external crystal?

Yes, the MSP430F413IRTDT can operate without an external crystal by using its internal digitally-controlled oscillator (DCO) as the MCLK source. The DCO stabilizes in less than 6 μs and is calibrated at factory default. However, for accurate real-time functions (e.g., RTC, precise timing intervals), the 32.768 kHz crystal on XIN/XOUT (Pins 8/9) is required to feed the FLL+ and generate stable ACLK - which the DCO alone cannot provide with sufficient accuracy.