Texas Instruments MSP430F5304IPTR

Overview

MSP430F5304IPTR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 8 KB flash, 6 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), a 10-bit ADC with 6 external + 2 internal channels, one USCI module (UART/IrDA/SPI/I²C), RTC with alarm, hardware multiplier, and 31 GPIOs in a 48-pin LQFP package. It targets battery-powered sensor systems and digital timers requiring sub-2 µA standby current.

For engineers reviewing the MSP430F5304IPTR datasheet, MSP430F5304IPTR pinout, MSP430F5304IPTR application, or MSP430F5304IPTR equivalent, key selection criteria include its single-USCI configuration, 31 I/O count, LQFP-48 package compatibility, and verified 1.9 µA LPM3 current at 3 V - critical for compact, long-life embedded designs.

Technical Context

The MSP430F5304IPTR implements a unified clock system (UCS) with FLL-based frequency stabilization, dual crystal support (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO). Its power management includes an integrated 3.3-V LDO, supply supervision, brownout detection, and five low-power modes (LPM0–LPM4.5).

Peripherals are mapped via port mapping controller on Port 4, enabling flexible USCI signal routing (UCA1/UCB1) while limiting simultaneous function availability. The device lacks Comparator_B and extended ADC channels present in higher-family variants (e.g., MSP430F5310), confirming its role as a cost-optimized, single-interface MCU variant.

Key Specifications

Pinout & Package

LQFP-48 package (7 mm × 7 mm), thermally enhanced with exposed pad recommended for connection to VSS. Pin functions validated per TI SLAS677G Rev. May 2020, Figure 4-4 and Table 4-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5304IPTR, MSP430F5308IPTR adds flash and dual USCI for protocol flexibility, while MSP430F5304IRGZR offers identical functionality in a surface-mount-optimized VQFN package - choice depends on firmware size, interface concurrency, and assembly requirements.

Availability

MSP430F5304IPTR is available at Aetrix Electronics and suitable for remote controls, digital thermostats, and hand-held meters requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F5304IPTR 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 across industrial, automotive, and consumer markets.

The MSP430F5304IPTR belongs to the MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated sensing, metering, and timing applications where energy efficiency and integration outweigh raw performance.

FAQ

What is the maximum system clock frequency supported by the MSP430F5304IPTR?

The MSP430F5304IPTR supports a maximum system clock frequency of 25 MHz, achieved via the FLL-controlled DCO or external high-frequency crystal (XT2) up to 32 MHz. This allows real-time execution of time-critical tasks such as motor commutation or fast ADC sampling at 200 kSPS, while maintaining deterministic interrupt latency within the 16-bit RISC architecture.

Does the MSP430F5304IPTR include a hardware comparator?

No, the MSP430F5304IPTR does not include Comparator_B. Unlike MSP430F5310/5309/5308 variants, the MSP430F5304IPTR omits the Comparator_B peripheral entirely - confirmed in the device description (Section 1.3) and functional block diagram (Figure 1-3). Designers requiring analog threshold detection must implement software-based comparisons using the ADC or external components.

How many USCI modules are implemented in the MSP430F5304IPTR?

The MSP430F5304IPTR implements one USCI module, configurable as either USCI_A1 (UART/IrDA/SPI) or USCI_B1 (I²C/SPI), but not both simultaneously. This is explicitly stated in Section 1.3 and Table 3-1 of SLAS677G, distinguishing it from MSP430F5310/5309/5308 which feature two USCI modules (UCA0+UCB0).

What is the ADC resolution and input channel count for the MSP430F5304IPTR?

The MSP430F5304IPTR integrates a 10-bit successive-approximation ADC (ADC10_A) with six external analog inputs (A0–A5) and two internal sources (VeREF+/VeREF−), totaling eight usable channels. This configuration is documented in Table 3-1 and Section 1.3, and differs from higher-family members offering up to ten external channels.

Is the MSP430F5304IPTR pin-compatible with other devices in the MSP430F53xx family?

The MSP430F5304IPTR shares the same 48-pin LQFP (PT) package footprint and basic pinout with MSP430F5308IPTR and MSP430F5309IPTR, but functional pin assignments differ due to reduced peripheral count - notably missing UCA0/UCB0 signals and Comparator_B inputs. Direct replacement requires firmware and schematic validation, as not all pins retain identical functionality across variants.