Texas Instruments MSP430FG4260IDLR

Overview

MSP430FG4260IDLR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller with 24KB+256B Flash/256B RAM, integrated 16-bit sigma-delta ADC, 12-bit DAC, two configurable op-amps, LCD driver for up to 56 segments, and Timer_A3 with three capture/compare registers. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and portable instrumentation.

For engineers reviewing the MSP430FG4260IDLR datasheet, MSP430FG4260IDLR pinout, MSP430FG4260IDLR application, or MSP430FG4260IDLR equivalent, key selection criteria include active-mode current (250 μA @ 1 MHz, 2.2 V), standby current (1.1 μA), wake-up time (<6 μs), LCD segment drive capability (56 seg), and dual op-amp front-end configurability for analog signal conditioning prior to ADC conversion.

Technical Context

The MSP430FG4260IDLR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its FLL+ clock system integrates a digitally controlled oscillator (DCO) and supports ACLK (32768 Hz crystal), MCLK (system clock), and SMCLK (peripheral clock), with fast DCO stabilization in under 6 μs.

It features five software-selectable low-power modes (LPM0–LPM4), brownout detection, programmable code protection via security fuse, and serial onboard programming without external voltage. The SD16_A module provides 16-bit sigma-delta conversion with internal reference and five differential analog inputs, while DAC12 delivers 12-bit voltage output on P1.4.

Key Specifications

Pinout & Package

Package: 48-pin SSOP (DL), 7.5 mm × 4.4 mm body, 0.5 mm pitch, surface-mount. Pinout validated per SLAS556A Rev. August 2007, DL package pin assignments.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FG4250IDL and MSP430FG4270IDL, the MSP430FG4260IDLR offers optimal balance of Flash capacity (24KB), identical analog/peripheral integration, and SSOP package compatibility-making it ideal for mid-complexity metering and control designs requiring proven reliability and supply continuity.

Availability

MSP430FG4260IDLR is available at Aetrix Electronics and suitable for portable handheld meters, digital thermostats, remote sensor nodes, and analog motor control systems requiring stable component supply, long-term industrial availability, and TI-qualified manufacturing traceability.

Supply support for MSP430FG4260IDLR 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 microcontroller innovation.

The MSP430FG42x0 product line was designed for ultralow-power mixed-signal applications in portable instrumentation, sensor systems, and battery-operated displays-emphasizing analog integration, LCD support, and extended battery life.

FAQ

What is the maximum operating frequency of the MSP430FG4260IDLR?

The MSP430FG4260IDLR features a digitally controlled oscillator (DCO) that supports system clock frequencies up to 8 MHz, with typical operation at 1 MHz for ultralow-power optimization. Its 125-ns instruction cycle time corresponds to a 8-MHz CPU clock, and the FLL+ module stabilizes the DCO to multiples of the 32768-Hz watch crystal. The MSP430FG4260IDLR achieves full performance across its 1.8 V to 3.6 V supply range without requiring external high-frequency crystals.

Does the MSP430FG4260IDLR support JTAG debugging?

Yes, the MSP430FG4260IDLR supports full JTAG debugging via dedicated pins TCK (DL pin 4), TMS (DL pin 3), TDI/TCLK (DL pin 2), and TDO/TDI (DL pin 1). These signals enable boundary-scan testing, flash programming, and real-time emulation using standard TI MSP-FET tools. The JTAG interface remains functional even when the bootstrap loader is active, allowing concurrent development and field update workflows for the MSP430FG4260IDLR.

How many LCD segments can the MSP430FG4260IDLR drive, and what mux configurations are supported?

The MSP430FG4260IDLR integrates the LCD_A peripheral capable of driving up to 56 segments with static, 2-MUX, 3-MUX, or 4-MUX configurations. It provides four common outputs (COM0–COM3) and 14 segment outputs (S0–S13 plus S5 and additional P2/P5 pins), enabling flexible display layouts. Contrast is software-adjustable via the charge pump voltage control registers, and the module operates independently of the main supply voltage - a key feature confirmed in the MSP430FG4260IDLR functional block diagram and terminal descriptions.

What are the analog input capabilities of the MSP430FG4260IDLR's SD16_A module?

The SD16_A module in the MSP430FG4260IDLR provides 16-bit sigma-delta analog-to-digital conversion with five differential analog input channels (A0±, A1±, A2±, A3±, A4±), internal VCC sense, and integrated temperature sensor. It includes an internal reference generator and supports programmable gain, oversampling, and conversion rates optimized for precision sensor measurements. All specifications are explicitly documented for the MSP430FG4260IDLR in SLAS556A, including input ranges and noise performance metrics.

Is the MSP430FG4260IDLR pin-compatible with other devices in the MSP430FG42x0 family?

Yes, the MSP430FG4260IDLR is fully pin-compatible with the MSP430FG4250IDL and MSP430FG4270IDL in the DL (48-pin SSOP) package, sharing identical pin functions, electrical characteristics, and footprint. This allows direct substitution within the same PCB layout when migrating between Flash sizes - a design feature explicitly confirmed in the "AVAILABLE OPTIONS" table and pin designation diagrams of SLAS556A for the MSP430FG42x0 family.