Texas Instruments MSP430F2350IYFFR

Overview

MSP430F2350IYFFR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 16KB+256B flash, 2KB RAM, dual 16-bit timers (Timer_A3 and Timer_B3), a universal serial communication interface (USCI) supporting UART/IrDA/SPI/I²C, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1 µA off-mode current.

For engineers reviewing the MSP430F2350IYFFR datasheet, MSP430F2350IYFFR pinout, MSP430F2350IYFFR application, or MSP430F2350IYFFR equivalent, key selection criteria include its 40-pin QFN (YFF) package, integrated DCO with factory-calibrated frequencies up to 16 MHz, LIN-capable USCI_A0 with auto-baud detection, and brownout protection for robust operation in fluctuating supply environments.

Technical Context

The MSP430F2350IYFFR implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one cycle. Its clock system integrates a digitally controlled oscillator (DCO), low-frequency (LF) and high-frequency (HF) crystal support, and three primary clocks (ACLK, MCLK, SMCLK) routed to peripherals and CPU.

Power management includes six operating modes-Active Mode (270 µA @ 1 MHz, 2.2 V), LPM0–LPM3, and LPM4 (0.1 µA)-with ultra-fast wake-up (<1 µs) enabled by DCO stabilization. The USCI module is split into USCI_A0 (UART/IrDA/SPI) and USCI_B0 (SPI/I²C), each with independent control registers and interrupt vectors.

Key Specifications

Pinout & Package

Package: 40-pin QFN (YFF), 3.2 mm × 3.2 mm, 0.5 mm pitch, exposed thermal pad connected to D/AVSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2330IYFFR, the MSP430F2350IYFFR provides balanced headroom for mid-complexity sensor firmware while avoiding the cost premium of 32KB flash; versus MSP430F2370IYFFR, it delivers optimal cost-performance trade-off for applications needing >8KB but not approaching 30KB code footprint.

Availability

MSP430F2350IYFFR is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MSP430F2350IYFFR 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power design and mixed-signal integration.

The MSP430F23x0 series was engineered specifically for battery-constrained measurement applications, combining sub-microamp power states, integrated analog peripherals, and robust firmware security features like programmable code protection and BSL password locking.

FAQ

What is the maximum operating frequency of the MSP430F2350IYFFR?

The MSP430F2350IYFFR supports internal DCO frequencies up to 16 MHz, calibrated at factory and stored in flash info memory (CALBC1_16MHZ/CALBC0_16MHZ). When configured with external HF crystal, it operates up to 16 MHz. The CPU executes instructions at 62.5-ns cycle time at this frequency, enabling real-time response in sensor fusion and control loops. MSP430F2350IYFFR achieves full performance within its 1.8–3.6 V supply range.

Does the MSP430F2350IYFFR support LIN bus communication?

Yes, the MSP430F2350IYFFR supports LIN 2.x communication via USCI_A0's enhanced UART mode with automatic baudrate detection (ABD). This feature allows the MSP430F2350IYFFR to synchronize to incoming LIN header without prior knowledge of bus speed, simplifying slave-node implementation in automotive body electronics and industrial control networks.

How many I/O pins does the MSP430F2350IYFFR provide, and what are their capabilities?

The MSP430F2350IYFFR offers 32 individually configurable I/O pins across Ports P1–P4, each supporting input/output direction control, programmable pullup/pulldown resistors, and interrupt on edge select. All P1 and P2 pins support interrupt generation on rising/falling edges - critical for wake-on-event in low-power designs. MSP430F2350IYFFR also maps key peripherals (USCI, timers, comparator) to dedicated pins with alternate functions clearly defined in Table 3 of SLAS518E.

Can the MSP430F2350IYFFR be programmed without a JTAG debugger?

Yes, the MSP430F2350IYFFR includes an on-chip bootstrap loader (BSL) accessible via UART using P1.1 (RX) and P2.2 (TX). This allows flash programming and RAM loading without JTAG hardware, provided the BSL is not disabled by security fuse. MSP430F2350IYFFR supports password-protected access and is documented in SLAU319. No external programming voltage is required.

What analog peripherals are integrated into the MSP430F2350IYFFR?

The MSP430F2350IYFFR integrates a Comparator_A+ module with eight analog inputs (CA0–CA7), programmable hysteresis, output latch, and slope analog-to-digital conversion capability. It does not include a successive-approximation ADC (SAR) or DAC. MSP430F2350IYFFR uses the comparator in conjunction with Timer_A to perform precise slope A/D - ideal for battery voltage monitoring and slow-varying sensor signals where 12–14 bit resolution suffices.