Texas Instruments MSP430F1471IRTDT

Overview

MSP430F1471IRTDT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB flash, 1KB RAM, dual USARTs, 12-bit ADC with 8 channels, two 16-bit timers (Timer_A3 and Timer_B7), and on-chip comparator. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-6 µs wake-up - ideal for battery-powered sensor nodes and portable metering systems.

For engineers reviewing the MSP430F1471IRTDT datasheet, MSP430F1471IRTDT pinout, MSP430F1471IRTDT application, or MSP430F1471IRTDT equivalent, key selection criteria include its VQFN-64 package, dual UART/SPI capability, integrated ADC reference, DCO-based clock system, and JTAG debug support for embedded control in space-constrained industrial and handheld designs.

Technical Context

The MSP430F1471IRTDT implements a 16-bit CPU with constant generators and hardware multiplier, optimized for code efficiency in low-power embedded applications. Its clock system integrates DCO, LFXT1 (32.768 kHz crystal), and XT2 (up to 8 MHz) oscillators, with ACLK, SMCLK, and MCLK domains routed to peripherals including ADC12, Timer_B7 (7 capture/compare registers with shadow), and Timer_A3 (3 capture/compare registers).

It features two independent USART modules (USART0 and USART1), each configurable as UART or SPI, supporting full-duplex serial communication. The 12-bit ADC includes internal reference (1.5 V/2.0 V/2.5 V), sample-and-hold, autoscan, and conversion time under 10 µs - all synchronized to programmable ADC12CLK derived from system clocks.

Key Specifications

Pinout & Package

VQFN-64 package (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad (connected to DVSS). Pin count and I/O allocation match PM/PAG variants; functional pin mapping validated per TI SLAS272H Rev. May 2018, Figure 4-3 and Table 4-2.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F1471IRTDT, the MSP430F1491IRTDT offers headroom for complex protocols without changing PCB layout, while the MSP430F135IRTDT reduces cost and footprint at the expense of peripheral flexibility and memory - making each viable depending on firmware scope and feature roadmap.

Availability

MSP430F1471IRTDT is available at Aetrix Electronics and suitable for smart utility metering, industrial sensor nodes, and portable handheld testers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MSP430F1471IRTDT 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 delivering analog, embedded processing, and wireless technologies with emphasis on reliability, energy efficiency, and system-level integration.

The MSP430F1471IRTDT belongs to TI's MSP430F14x1 family - designed specifically for ultra-low-power sensing, measurement, and control applications where extended battery life, precision analog integration, and robust debug capability are critical.

FAQ

What is the maximum operating frequency of the MSP430F1471IRTDT?

The MSP430F1471IRTDT does not have a fixed maximum CPU frequency; its digitally controlled oscillator (DCO) is calibrated to deliver up to 8 MHz at 3.3 V (per SLAS272H Section 5.18). Actual system clock (MCLK) depends on DCO tuning and divider settings - typical active-mode operation runs at 1–8 MHz, with 1 MHz yielding 280 µA current draw.

Does the MSP430F1471IRTDT support in-system programming without external voltage?

Yes, the MSP430F1471IRTDT supports serial onboard programming via its built-in bootloader (BSL) using only the standard supply voltage (1.8–3.6 V). No external programming voltage is required - programming occurs through UART or SPI using the BSL interface, protected by a one-time security fuse.

How many analog input channels does the MSP430F1471IRTDT ADC support?

The MSP430F1471IRTDT integrates a 12-bit ADC12 module with eight external analog input channels (A0–A7), mapped to P6.0 through P6.7. All channels support single-ended or differential acquisition, internal reference selection (1.5 V/2.0 V/2.5 V), and autoscan sequencing without CPU involvement.

Is the MSP430F1471IRTDT pin-compatible with other MSP430F14x1 devices in VQFN-64?

Yes, the MSP430F1471IRTDT shares identical pinout, package dimensions (9 mm × 9 mm VQFN), and signal mapping with MSP430F1481IRTDT and MSP430F1491IRTDT per TI SLAS272H Figure 4-3 and Table 4-2 - enabling direct substitution within the F14x1 family for memory-scaling design iterations.

What debug interfaces are supported by the MSP430F1471IRTDT?

The MSP430F1471IRTDT supports standard 4-wire JTAG (TCK, TMS, TDI/TCLK, TDO/TDI) for full-featured emulation, flash programming, and real-time debugging. It also supports Spy-Bi-Wire (2-wire JTAG subset) via TCK and TMS for space-constrained layouts - both require no external voltage and operate within the core supply range.