Texas Instruments MSP430F1471IRTDR

Overview

MSP430F1471IRTDR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 32KB flash, 1KB RAM, dual USARTs, 12-bit ADC (8-channel), 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 battery-powered sensor systems and portable meters.

For engineers reviewing the MSP430F1471IRTDR datasheet, MSP430F1471IRTDR pinout, MSP430F1471IRTDR application, or MSP430F1471IRTDR equivalent, key selection criteria include its 64-pin VQFN package, dual UART/SPI capability, 12-bit ADC with internal reference, wake-up time <6 µs from standby, and compatibility with TI's MSP430x1xx toolchain and development ecosystem.

Technical Context

The MSP430F1471IRTDR implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency. Its clock system integrates DCO, ACLK, SMCLK, and MCLK with support for LFXT1 (32.768 kHz crystal) and XT2 (up to 8 MHz) oscillators - enabling precise timing control across low-power and active modes.

Peripherals are tightly coupled via the bus architecture: ADC12 uses dedicated conversion clock (ADC12CLK) routed from P2.6; Timer_B7 provides seven capture/compare registers with shadow registers for glitch-free PWM; both USART0 and USART1 support asynchronous UART and synchronous SPI operation with independent control logic and I/O mapping.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F1471IRTDR, the MSP430F1491IRTDR offers 28KB more flash and 1KB more RAM for complex protocols or logging, while the MSP430F135IPMR reduces cost and footprint but sacrifices dual-serial capability and timer depth - making it viable only for minimal-feature implementations.

Availability

MSP430F1471IRTDR is available at Aetrix Electronics and suitable for smart energy meters, industrial sensor nodes, portable gas detectors, and medical patient monitors requiring stable component supply and long-term manufacturability.

Supply support for MSP430F1471IRTDR 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 connectivity solutions with emphasis on reliability, longevity, and design-in support.

The MSP430F1471IRTDR belongs to the MSP430F14x1 mixed-signal MCU family, engineered specifically for ultra-low-power, battery-operated measurement and control applications where extended runtime and analog integration are critical.

FAQ

What is the maximum operating frequency of the MSP430F1471IRTDR?

The MSP430F1471IRTDR does not have a fixed maximum clock frequency specification; its digitally controlled oscillator (DCO) is calibrated to operate up to approximately 8 MHz under typical conditions using the XT2 oscillator. The core executes instructions at 125 ns per cycle, corresponding to 8 MIPS at full speed. Actual achievable frequency depends on supply voltage and temperature, with recommended operation up to 8 MHz at 2.2–3.6 V per the SLAS272H datasheet.

Does the MSP430F1471IRTDR support JTAG debugging?

Yes, the MSP430F1471IRTDR fully supports IEEE 1149.1 JTAG boundary-scan and in-circuit emulation via dedicated pins TCK (Pin 57), TMS (Pin 56), TDO/TDI (Pin 54), and TDI/TCLK (Pin 55). This enables real-time debugging, flash programming, and device verification using TI's MSP-FET or compatible tools - all without requiring external voltage injection or bootloader activation.

How many analog input channels does the MSP430F1471IRTDR ADC support?

The MSP430F1471IRTDR integrates a 12-bit ADC12 module supporting up to eight analog input channels, mapped directly to P6.0–P6.7 (A0–A7). These pins are configurable as dedicated analog inputs with selectable reference sources (internal 2.5 V or external), sample-and-hold, and autoscan mode - enabling sequential conversion across all eight channels without CPU intervention.

Is the MSP430F1471IRTDR pin-compatible with other MSP430F14x1 devices?

Yes, the MSP430F1471IRTDR is pin-compatible with all 64-pin RTD-packaged MSP430F14x1 variants, including MSP430F1481IRTDR and MSP430F1491IRTDR. They share identical pin assignments, electrical characteristics, and peripheral mappings - allowing direct substitution in existing PCB layouts when higher memory capacity is required.

What power supply configurations are required for the MSP430F1471IRTDR analog and digital sections?

The MSP430F1471IRTDR requires separate analog (AVCC/AVSS) and digital (DVCC/DVSS) supply domains. AVCC must be decoupled with ≥100 nF low-ESR ceramic capacitor near Pin 64 and kept clean of digital switching noise. DVCC (Pin 1) and DVSS (Pin 63) require individual 100 nF decoupling. Both supplies must remain within 1.8 V–3.6 V and maintain ≤100 mV differential between AVCC and DVCC to ensure ADC accuracy and stable core operation.