Texas Instruments MSP430F4361IPN

Overview

MSP430F4361IPN from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller with 24KB+256B flash, 1KB RAM, integrated LCD driver for up to 160 segments, two 16-bit timers (Timer_A3 and Timer_B3), and serial communication interface (USART0). It operates from 1.8 V to 3.6 V and targets battery-powered portable measurement systems requiring long runtime and on-device display.

For engineers reviewing the MSP430F4361IPN datasheet, MSP430F4361IPN pinout, MSP430F4361IPN application, or MSP430F4361IPN equivalent, key selection considerations include its 80-pin QFP package, absence of ADC12 module, LCD segment drive capability, wake-up time under 6 µs, and compatibility with JTAG-based debugging and bootloader programming.

Technical Context

The MSP430F4361IPN implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6-µs wake-up from standby mode. Its peripheral set includes a 16-bit Timer_A with three capture/compare registers and a 16-bit Timer_B with three capture/compare registers and shadow registers - both supporting PWM, input capture, and interval timing.

It features a single USART (USART0) configurable as UART or SPI, an on-chip comparator, supply voltage supervisor with programmable level detection, brownout detector, and integrated LCD driver supporting static to 4-mux configurations. The device lacks the ADC12 module present in non-"1" variants (e.g., MSP430F436IPN), per TI's functional distinction between x43x1 and x43x families.

Key Specifications

Pinout & Package

Package: 80-pin plastic quad flat pack (QFP), PN suffix, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F436IPN, MSP430F4361IPN removes ADC12 to lower cost and power, making it ideal for display-centric or digitally interfaced sensors. Against MSP430F449IPZ, it trades pin count, memory, and peripherals for smaller footprint and lower system-level BOM cost.

Availability

MSP430F4361IPN is available at Aetrix Electronics and suitable for handheld metering, industrial sensor nodes, energy monitoring panels, and medical diagnostic tools requiring stable component supply across production lifecycles.

Supply support for MSP430F4361IPN 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 company specializing in analog, embedded processing, and connectivity technologies.

The MSP430x43x1 product line delivers ultralow-power mixed-signal control for portable instrumentation, where extended battery life, integrated LCD drive, and rapid wake-up are essential design goals.

FAQ

What is the primary functional difference between MSP430F4361IPN and MSP430F436IPN?

The MSP430F4361IPN omits the 12-bit ADC12 module present in the MSP430F436IPN. All other specifications-including 24KB+256B flash, 1KB RAM, Timer_A3/Timer_B3, USART0, LCD driver, and pinout-are identical. This makes MSP430F4361IPN suitable for applications where analog-to-digital conversion is handled externally or not required.

Does MSP430F4361IPN support JTAG debugging and in-system programming?

Yes, MSP430F4361IPN supports full JTAG-based debugging and programming via pins RST/NMI, TCK, TMS, TDI/TCLK, and TDO/TDI. It is compatible with TI's MSP-FET430UIF and third-party emulators. The device also includes a UART-based bootstrap loader (BSL) for firmware updates without a JTAG interface.

What LCD configuration does MSP430F4361IPN support, and how many segments can it drive?

MSP430F4361IPN integrates an LCD controller supporting static, 2-mux, 3-mux, and 4-mux configurations with up to 160 segments. It provides four common outputs (COM0–COM3) and 40 segment outputs (S0–S39), enabling direct drive of alphanumeric or custom segment displays without external bias circuitry.

What is the maximum operating frequency and clock source flexibility of MSP430F4361IPN?

MSP430F4361IPN supports multiple clock sources: internal DCO (up to ~8 MHz), external 32.768 kHz crystal (XT1), and external high-frequency crystal (XT2, up to 8 MHz). The FLL+ module stabilizes the DCO, allowing reliable operation across supply and temperature ranges without requiring external oscillators for most applications.

Is MSP430F4361IPN pin-compatible with other devices in the MSP430x43x1 family?

Yes, MSP430F4361IPN shares the same 80-pin QFP (PN) package and pinout with MSP430F4351IPN and MSP430F4371IPN. All x43x1 variants use identical terminal functions, I/O mapping, and peripheral assignments-enabling hardware reuse across flash-size variants in the same family.