Texas Instruments MSP430F435IPN

Overview

MSP430F435IPN from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 16KB+256B Flash, 512B RAM, integrated 12-bit ADC with internal reference and autoscan, dual 16-bit timers (Timer_A3 and Timer_B3), two USARTs, LCD driver for up to 160 segments, and hardware multiplier - deployed in portable sensor systems and battery-powered metering devices.

For engineers reviewing the MSP430F435IPN datasheet, MSP430F435IPN pinout, MSP430F435IPN application, or MSP430F435IPN equivalent, key selection criteria include its 1.8–3.6 V supply range, 280 µA active current at 1 MHz/2.2 V, <6 µs wake-up from standby, 80-pin QFP package, and full ADC12 implementation distinguishing it from F43x1 variants.

Technical Context

The MSP430F435IPN implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from standby mode and five configurable low-power modes optimized for extended battery life. Its architecture integrates analog peripherals-including ADC12 with sample-and-hold, comparator_A, and programmable SVS-alongside digital resources like dual 16-bit timers with capture/compare and shadow registers.

It supports flexible communication via two USART modules (USART0 and USART1), each configurable as UART or SPI, and drives multiplexed LCDs up to 4×40 segments using dedicated COM/SEG pins and internal voltage divider. The device includes JTAG-based debugging, onboard bootstrapping, and security fuse protection.

Key Specifications

Pinout & Package

Package: 80-pin plastic quad flat pack (QFP), PN suffix, -40°C to +85°C industrial temperature range.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F435IPN, the F436IPN and F437IPN offer scalable memory headroom without changing PCB layout, peripheral configuration, or power architecture - making them drop-in upgrades for firmware growth.

Availability

MSP430F435IPN is available at Aetrix Electronics and suitable for portable energy meters, industrial sensor nodes, handheld test instruments, and smart thermostat displays requiring stable component supply across long-lifecycle designs.

Supply support for MSP430F435IPN 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 power efficiency and system integration.

The MSP430x43x series targets ultra-low-power portable measurement and display applications - combining precision analog peripherals, LCD control, and robust timing in a single chip to minimize external components and extend battery life.

FAQ

What is the maximum operating frequency of the MSP430F435IPN?

The MSP430F435IPN operates at up to 8 MHz using the integrated FLL+ module with XT2 crystal oscillator. Its 125-ns instruction cycle time enables deterministic real-time response, and the DCO allows fast wake-up to active mode in under 6 µs - critical for duty-cycled sensor applications where latency must be minimized.

Does the MSP430F435IPN include an integrated ADC, and what are its key capabilities?

Yes, the MSP430F435IPN includes a 12-bit ADC12 module with 8 input channels, internal reference (1.5 V/2.0 V/2.5 V), sample-and-hold, and autoscan functionality. It supports conversion times under 10 µs and can sequence conversions across multiple channels without CPU involvement - enabling efficient multi-sensor data acquisition in MSP430F435IPN-based systems.

How many USART modules does the MSP430F435IPN support, and what interfaces do they provide?

The MSP430F435IPN supports two independent USART modules (USART0 and USART1), each configurable in software as either asynchronous UART or synchronous SPI. This allows simultaneous use - for example, UART for host communication and SPI for sensor interfacing - without resource conflict, a key advantage in compact MSP430F435IPN-based designs.

What LCD configuration does the MSP430F435IPN support, and how is it implemented?

The MSP430F435IPN integrates an LCD controller supporting up to 160 segments with 1/2–1/4 bias, programmable frame frequency, and internal resistive voltage divider. It uses dedicated COM0–COM3 and S0–S39 pins - eliminating external bias generation - and supports static, 2-mux, 3-mux, and 4-mux displays commonly used in MSP430F435IPN metering and instrumentation applications.

What is the power supply range and low-power performance of the MSP430F435IPN?

The MSP430F435IPN operates from 1.8 V to 3.6 V and achieves 280 µA active current at 1 MHz/2.2 V, 1.1 µA standby, and 0.1 µA off mode with RAM retention. These specifications enable multi-year operation on coin cells or alkaline batteries - a defining characteristic of the MSP430F435IPN in portable and maintenance-free applications.