Texas Instruments MSP430F415IRTDT

Overview

MSP430F415IRTDT from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 16KB flash, 512B RAM, integrated 96-segment LCD driver, on-chip comparator, and FLL+ clock system. It operates from 1.8 V to 3.6 V, draws 200 μA active at 1 MHz/2.2 V, and supports five power-saving modes with sub-6-μs wake-up - ideal for battery-powered handheld meters and industrial sensor displays.

For engineers reviewing the MSP430F415IRTDT datasheet, MSP430F415IRTDT pinout, MSP430F415IRTDT application, or MSP430F415IRTDT equivalent, key selection criteria include its QFN-64 (RTD) package, Timer1_A5 with five capture/compare registers, programmable SVS voltage monitoring, dual 16-bit timers, and JTAG + BSL serial programming capability.

Technical Context

The MSP430F415IRTDT implements a 16-bit RISC CPU with 125-ns instruction cycle time, constant generators, and seven addressing modes. Its FLL+ module locks DCO frequency to multiples of ACLK (e.g., 32.768 kHz crystal), enabling stable MCLK up to 8 MHz without external high-frequency crystals.

It integrates two independent 16-bit timers: Timer0_A3 (three capture/compare registers) and Timer1_A5 (five capture/compare registers), both supporting PWM, input capture, and interval timing. The device includes dedicated LCD control logic driving up to 96 segments via 4-MUX configuration with internal resistive divider and programmable bias voltage generation.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F413IRTDT and MSP430F417IRTDT, the MSP430F415IRTDT provides optimal balance: sufficient flash for feature-rich metering code (e.g., IEC 62056 compliance) and adequate RAM for double-buffered LCD rendering, while avoiding over-provisioning that increases cost and power in static memory arrays.

Availability

MSP430F415IRTDT is available at Aetrix Electronics and suitable for handheld energy meters, industrial panel displays, portable medical monitors, and smart utility nodes requiring stable component supply across multi-year production cycles.

Supply support for MSP430F415IRTDT 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 MSP430x41x product line was designed specifically for ultra-low-power portable measurement and display applications - emphasizing extended battery life, integrated analog peripherals, and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430F415IRTDT?

The MSP430F415IRTDT supports a maximum MCLK frequency of 8 MHz, achieved via the FLL+ module locking the internal DCO to integer multiples of the ACLK source (e.g., 32.768 kHz crystal). This allows deterministic real-time execution without external high-frequency oscillators, reducing EMI and component count. The 125-ns instruction cycle time ensures consistent timing for critical tasks like LCD refresh and ADC sampling in the MSP430F415IRTDT.

Does the MSP430F415IRTDT support in-system programming without JTAG?

Yes, the MSP430F415IRTDT includes a UART-based bootstrap loader (BSL) accessible via P1.0 (TX) and P1.1 (RX), enabling flash programming without JTAG hardware. The BSL is protected by a user-configurable password and supports mass erase, segment erase, and byte/word write operations. This capability simplifies production programming and field firmware updates for the MSP430F415IRTDT, eliminating dependency on debug probes.

How many LCD segments can the MSP430F415IRTDT drive, and what multiplexing configurations are supported?

The MSP430F415IRTDT drives up to 96 segments using a 4-MUX configuration with four common outputs (COM0–COM3) and 24 segment lines (S0–S23). It includes internal resistive voltage dividers and programmable bias generation (V1–V5), eliminating external resistor networks. This architecture directly supports standard 4-digit alphanumeric displays and custom icon layouts in the MSP430F415IRTDT without external LCD bias ICs.

What power-saving modes are available on the MSP430F415IRTDT, and how do they differ?

The MSP430F415IRTDT offers six operating modes: Active Mode and five low-power modes (LPM0–LPM4). LPM0–LPM1 retain SMCLK/ACLK for peripheral operation; LPM2–LPM3 disable DCO but keep ACLK active for RTC/LCD; LPM4 disables all clocks including ACLK, achieving 0.1 μA off-mode with RAM retention. Wake-up latency is under 6 μs from any LPM, ensuring responsive event handling in the MSP430F415IRTDT.

Is the MSP430F415IRTDT pin-compatible with other devices in the MSP430x41x family?

Yes, the MSP430F415IRTDT shares identical 64-pin QFN (RTD) packaging and pin mapping with MSP430F413IRTDT, MSP430F417IRTDT, and all MSP430x41x variants in the RTD/RGC package. Signal names, electrical characteristics, and peripheral mappings are consistent across the family, enabling hardware reuse and firmware scalability. This compatibility simplifies design migration and inventory consolidation for the MSP430F415IRTDT.