Texas Instruments MSP430F147IPAG

Overview

MSP430F147IPAG from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB flash, 1KB RAM, dual 16-bit timers (Timer_A3 and Timer_B7), two USARTs (UART/SPI), 12-bit ADC with 8 analog inputs, on-chip comparator, and JTAG debug interface. It operates from 1.8 V to 3.6 V and supports five power-saving modes - ideal for battery-powered sensor nodes and portable metering systems.

For engineers reviewing the MSP430F147IPAG datasheet, MSP430F147IPAG pinout, MSP430F147IPAG application, or MSP430F147IPAG equivalent, key selection considerations include its 64-pin TQFP package, 48 GPIOs with interrupt capability, 12-bit ADC conversion time <10 µs, wake-up from standby in <6 µs, and dual USART support for simultaneous serial communication in industrial monitoring and handheld instrumentation.

Technical Context

The MSP430F147IPAG implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency. Its clock system integrates DCO, ACLK, SMCLK, and MCLK domains with support for LFXT1 (watch crystal) and XT2 (high-frequency crystal) oscillators - enabling precise timing control across low-power and active modes.

Peripherals are tightly coupled via shared memory-mapped registers: the 12-bit ADC12 module supports internal/external reference, sample-and-hold, and autoscan; Timer_B7 provides seven capture/compare registers with shadow registers for glitch-free PWM; and both USART0 and USART1 support full-duplex asynchronous UART or synchronous SPI operation with independent clock sources.

Key Specifications

Pinout & Package

TQFP-64 package (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (connected to DVSS). Pinout conforms to TI's standard 64-pin PM/PAG/RTD footprint for family compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F147IPAG, the MSP430F149IPAG offers 28KB more flash and 1KB more RAM for larger firmware or data logging, while the MSP430F148IPAG provides 16KB extra flash over the F147IPAG at lower cost - both retain identical peripheral sets, power profiles, and 64-pin TQFP compatibility.

Availability

MSP430F147IPAG is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, portable test equipment, and low-power data loggers requiring stable component supply and long-term production continuity.

Supply support for MSP430F147IPAG 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 energy efficiency and reliability.

The MSP430F14x series targets ultra-low-power embedded applications where extended battery life, precision analog integration, and real-time responsiveness are critical - especially in metering, sensing, and portable instrumentation.

FAQ

What is the maximum operating frequency of the MSP430F147IPAG?

The MSP430F147IPAG does not specify a maximum system clock frequency in its datasheet; instead, it guarantees correct operation up to 8 MHz for the XT2 oscillator and supports DCO frequencies calibrated for up to 8 MHz. The CPU executes instructions at 125 ns per cycle (8 MIPS), and all peripherals - including ADC, timers, and USARTs - are fully functional within this range. MSP430F147IPAG performance is validated under recommended operating conditions (1.8–3.6 V, –40°C to 85°C).

Does the MSP430F147IPAG support hardware UART autobaud detection?

No, the MSP430F147IPAG does not implement hardware UART autobaud detection. Its USART modules require manual configuration of BRCLK and modulation control bits to match incoming baud rates. However, MSP430F147IPAG firmware can implement software-based autobaud using Timer_A input capture to measure start-bit duration - a common technique documented in TI application reports SLAA025 and SLAA332. This capability is inherent to the MSP430F147IPAG's timer and interrupt architecture.

Can the MSP430F147IPAG ADC operate with an external reference voltage?

Yes, the MSP430F147IPAG ADC12 module supports external reference voltages applied to VeREF+ (Pin 10) and VREF−/VeREF− (Pin 11). When configured for external reference, the ADC uses the differential voltage between these pins as its full-scale range. This mode enables higher precision than the internal 2.5 V reference when paired with a low-drift external source - a feature confirmed in Section 5.24 and 5.25 of the MSP430F147IPAG datasheet.

Is the MSP430F147IPAG pin-compatible with the MSP430F149IPAG?

Yes, the MSP430F147IPAG is pin-compatible with the MSP430F149IPAG in the same TQFP-64 (PAG) package. Both share identical pin assignments, electrical characteristics, and peripheral mappings per Table 3-1 and Figures 4-2–4-3 in the MSP430F147IPAG datasheet. This allows direct PCB-level substitution where increased flash/RAM capacity is needed - though firmware must be recompiled to utilize the additional memory resources of the MSP430F149IPAG.

What debug interfaces are supported by the MSP430F147IPAG?

The MSP430F147IPAG supports full IEEE 1149.1 JTAG debugging via TCK, TMS, TDI/TCLK, and TDO/TDI pins (Pins 57, 56, 55, 54). It also supports Spy-Bi-Wire (2-wire JTAG) for reduced pin count debugging. The device includes a bootstrap loader (BSL) accessible via UART or SPI, enabling in-system programming without JTAG hardware. All debug capabilities are natively supported by TI's MSP-FET and Code Composer Studio for MSP430F147IPAG development.