Texas Instruments MSP430F4260IDLR

Overview

MSP430F4260IDLR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 24KB+256B Flash, 256B RAM, a 16-bit sigma-delta ADC with internal reference and five differential analog inputs, a 12-bit DAC, Timer_A3 with three capture/compare registers, integrated LCD driver for up to 56 segments, and brownout detection. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling use in battery-powered metering and sensor systems.

For engineers reviewing the MSP430F4260IDLR datasheet, MSP430F4260IDLR pinout, MSP430F4260IDLR application, or MSP430F4260IDLR equivalent, key selection criteria include Flash size (24KB), LCD segment drive capability (56 segments), sigma-delta ADC resolution (16-bit), DAC output (12-bit voltage mode), and SSOP-48 package compatibility with industrial temperature range (−40°C to 85°C).

Technical Context

The MSP430F4260IDLR implements a 16-bit RISC CPU with constant generators and 125-ns instruction cycle time, paired with FLL+ clock system supporting ACLK (32.768 kHz crystal), MCLK (up to 8 MHz at 3.6 V), and SMCLK. Its SD16_A module provides 16-bit sigma-delta conversion with programmable gain and internal temperature sensor input.

Integrated peripherals include LCD_A controller with regulated charge pump and software-controllable contrast, DAC12 operating in 12-bit voltage-output mode with dedicated P1.4 pin, and Timer_A3 supporting PWM, capture, and interval timing with interrupt vectors for CCR0, CCR1/CCR2, and overflow. All I/O ports (P1, P2, P5, P6) support individually configurable direction, pull-up/down, and edge-selectable interrupts.

Key Specifications

Pinout & Package

Package: 48-pin plastic SSOP (DL), body size 10.2 mm × 5.3 mm, pitch 0.635 mm, lead count 48, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F4250IDL and MSP430F4270IDL, the MSP430F4260IDLR offers optimal balance of Flash capacity (24KB), full peripheral integration, and SSOP-48 packaging-making it ideal for mid-complexity metering and sensor applications where code size exceeds 16KB but does not require 32KB headroom.

Availability

MSP430F4260IDLR is available at Aetrix Electronics and suitable for smart metering, portable instrumentation, and industrial panel displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for MSP430F4260IDLR 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 over 50 years of innovation in low-power microcontrollers.

The MSP430F42x0 product line targets ultralow-power portable measurement systems, integrating precision analog peripherals and LCD drivers to minimize external components in battery-operated metering and sensing devices.

FAQ

What is the maximum operating frequency of the MSP430F4260IDLR at 3.6 V?

The MSP430F4260IDLR achieves a maximum system clock (MCLK) frequency of 8 MHz at 3.6 V supply voltage, as specified in the recommended operating conditions. This allows real-time execution of metrology algorithms and LCD refresh cycles while maintaining ultralow-power efficiency. The FLL+ module dynamically stabilizes the DCO to this frequency using the 32.768 kHz watch crystal as reference. The MSP430F4260IDLR's 125-ns instruction cycle time supports deterministic timing-critical tasks in sensor and control applications.

Does the MSP430F4260IDLR support JTAG debugging and in-circuit programming?

Yes, the MSP430F4260IDLR supports full IEEE 1149.1 JTAG debugging and programming via TCK, TMS, TDI, and TDO pins (pins 4–1). These signals are located on the SSOP-48 package and enable boundary-scan testing, flash memory programming, and real-time emulation. The device also supports Spy-Bi-Wire (2-wire JTAG) mode for reduced pin count debugging. No external programming voltage is required-the MSP430F4260IDLR uses standard VCC for all programming operations.

How many LCD segments can the MSP430F4260IDLR drive, and what multiplexing configurations are supported?

The MSP430F4260IDLR drives up to 56 LCD segments using its integrated LCD_A peripheral. It supports static, 2-MUX, 3-MUX, and 4-MUX configurations via COM0–COM3 outputs and segment pins across P2, P5, and P6 ports. The module includes an internal regulated charge pump that generates LCD bias voltage independent of VCC, and contrast is software-adjustable through LCDVCTL registers. This eliminates external LCD bias ICs and simplifies PCB layout for handheld and panel-mounted displays.

What analog input configurations does the 16-bit sigma-delta ADC support on the MSP430F4260IDLR?

The SD16_A module on the MSP430F4260IDLR supports five differential analog input pairs: A0±, A1±, A2±, A3±, and A4±-mapped to P6.0–P6.3, P1.7/P1.6, P1.5/P1.4, P1.3/P1.2, and P1.1/P1.0 respectively. It also includes internal VCC sense and temperature sensor inputs. The ADC features programmable gain (1×, 2×, 4×, 8×, 16×, 32×, 64×), selectable reference (internal 1.2 V or external), and oversampling for effective resolution beyond 16 bits. These capabilities are confirmed in the SLAS455D datasheet functional description and terminal functions table.

Is the MSP430F4260IDLR pin-compatible with other members of the MSP430F42x0 family?

Yes, the MSP430F4260IDLR is pin-compatible with the MSP430F4250IDL and MSP430F4270IDL in the DL (SSOP-48) package. All three share identical pin assignments, electrical characteristics, peripheral mappings, and memory organization-differing only in Flash size (16KB, 24KB, 32KB). This allows hardware reuse across product variants and simplifies migration paths. Pin compatibility is explicitly confirmed in the "AVAILABLE OPTIONS" section and pin designation diagrams of the SLAS455D datasheet.