Texas Instruments MSP430F5435AIPNR

Overview

MSP430F5435AIPNR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 192 KB flash, 16 KB RAM, 12-bit ADC (14 external + 2 internal channels), three 16-bit timers (TA0/TA1/TB0), four USCI modules (2 UART/IrDA/SPI + 2 I²C/SPI), and RTC. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable meters.

For engineers reviewing the MSP430F5435AIPNR datasheet, MSP430F5435AIPNR pinout, MSP430F5435AIPNR application, or MSP430F5435AIPNR equivalent, key selection criteria include standby current (1.7 µA in LPM3), wake-up time (3.5 µs), ADC resolution and channel count, USCI interface flexibility, and LQFP-80 package compatibility for space-constrained designs.

Technical Context

The MSP430F5435AIPNR integrates a digitally controlled oscillator (DCO) with FLL stabilization, dual crystal support (32 kHz XT1 and up to 32 MHz XT2), and a unified clock system enabling dynamic clock source selection across active and low-power modes. Its power management includes an on-chip LDO with programmable core voltage and brownout detection.

It features three independent 16-bit timers: TA0 (5 capture/compare registers), TA1 (3 registers), and TB0 (7 shadow registers), supporting PWM, input capture, and real-time counting. The 12-bit ADC supports autoscan, internal reference, and sample-and-hold - all synchronized via dedicated ADCCLK derived from system clocks.

Key Specifications

Pinout & Package

The MSP430F5435AIPNR is housed in an 80-pin LQFP (PN) package measuring 12 mm × 12 mm, with 67 GPIO pins, multiple power/ground domains (DVCC/DVSS, AVCC/AVSS, VCORE), and dedicated crystal (XIN/XOUT), JTAG/SBW (PJ.0–PJ.3, TEST, RST/NMI), and USCI signal assignments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F5437AIPN, the MSP430F5435AIPNR offers reduced flash capacity but identical low-power performance and peripheral integration; versus MSP430F5418AIPN, it provides 64 KB more flash while retaining full pin and functional compatibility - making it the optimal balance for mid-complexity sensor and control applications.

Availability

MSP430F5435AIPNR is available at Aetrix Electronics and suitable for analog sensor systems, digital motor controls, and hand-held meters requiring stable component supply, long-term industrial availability, and TI-qualified manufacturing traceability.

Supply support for MSP430F5435AIPNR 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 MSP430F5435AIPNR belongs to TI's MSP430F5xx ultra-low-power MCU family, designed specifically for extended-battery-life applications in portable instrumentation, sensor nodes, and energy-conscious industrial control systems.

FAQ

What is the maximum system clock frequency supported by the MSP430F5435AIPNR?

The MSP430F5435AIPNR supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization and optional high-frequency crystal (XT2) up to 32 MHz. This allows real-time processing of sensor data and communication protocols while maintaining ultra-low power consumption in active mode.

Does the MSP430F5435AIPNR include an integrated real-time clock (RTC)?

Yes, the MSP430F5435AIPNR includes a hardware RTC module with calendar mode, alarm capability, and dedicated 32-kHz crystal support (XT1). It operates autonomously in LPM3 with only 1.7 µA current draw, enabling time-stamped data logging and scheduled wake-up without CPU intervention - a core feature of the MSP430F5435AIPNR.

How many universal serial communication interfaces (USCIs) does the MSP430F5435AIPNR have, and what protocols do they support?

The MSP430F5435AIPNR has four USCIs: USCI_A0 and USCI_A1 each support UART, IrDA, and SPI; USCI_B0 and USCI_B1 each support I²C and SPI. This configuration allows concurrent use of UART for debugging, I²C for sensor communication, and SPI for display or memory interfacing - a key capability of the MSP430F5435AIPNR in multi-peripheral systems.

What ADC resolution and input channel count does the MSP430F5435AIPNR provide?

The MSP430F5435AIPNR integrates a 12-bit successive approximation register (SAR) ADC with 200 ksps maximum sampling rate, 14 external analog input channels (A0–A15, excluding reserved pins), and 2 internal channels (temperature sensor and VCC/2). Its autoscan feature and internal reference enable robust analog measurement - a defining specification of the MSP430F5435AIPNR.

Is the MSP430F5435AIPNR pin-compatible with other devices in the MSP430F543x family?

Yes, the MSP430F5435AIPNR in the 80-pin LQFP (PN) package shares identical pinout and electrical characteristics with MSP430F5437AIPN and MSP430F5418AIPN. This enables direct substitution within the same footprint, allowing design reuse and flexible memory scaling - a verified interoperability feature of the MSP430F5435AIPNR.