Texas Instruments MSP430FR2000IRLLR

Overview

MSP430FR2000IRLLR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller in a 24-pin VQFN package, featuring 0.5KB FRAM, 512B RAM, 16-MHz DCO with FLL, eUSCI_A for UART/SPI, and Timer_B3 with three capture/compare registers - designed for battery-powered smoke detectors and door/window sensors.

For engineers reviewing the MSP430FR2000IRLLR datasheet, MSP430FR2000IRLLR pinout, MSP430FR2000IRLLR application, or MSP430FR2000IRLLR equivalent, key selection criteria include LPM3.5 current (1 µA), capacitive touch I/O capability across all 12 GPIOs, absence of ADC (confirmed for MSP430FR2000 variant), Spy-Bi-Wire debug interface, and VQFN-24 thermal performance in compact sensing nodes.

Technical Context

The MSP430FR2000IRLLR implements a 16-bit RISC CPU with constant generator and 16-bit registers, enabling high code efficiency and sub-10-µs wake-up from LPM4.5 to active mode via its digitally controlled oscillator (DCO). Its power management module supports six low-power modes including LPM3.5 (RTC + backup memory active at 1 µA) and LPM4.5 (34 nA shutdown).

Peripherals are tightly integrated into the low-power architecture: eUSCI_A0 supports UART/IrDA/SPI with automatic baud-rate detection; Timer_B3 provides three CCRs (CCR0 internal only, CCR1/CCR2 externally accessible); and the enhanced comparator (eCOMP0) includes programmable hysteresis and 6-bit DAC reference - all operating from a single DVCC/DVSS supply pair.

Key Specifications

Pinout & Package

Package: 24-pin VQFN (RLL), 3 mm × 3 mm, 0.4-mm pitch, thermally enhanced with exposed thermal pad (DVSS-connected).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430FR2100IRLLR and MSP430FR2033IRLLR, the MSP430FR2000IRLLR delivers the lowest BOM cost and smallest memory footprint for pure digital control and capacitive sensing - ideal where ADC is absent and firmware stays under 0.5KB.

Availability

MSP430FR2000IRLLR is available at Aetrix Electronics and suitable for smoke detectors, door/window sensors, and appliance battery packs requiring stable component supply across multi-year production cycles.

Supply support for MSP430FR2000IRLLR 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 delivering analog and embedded processing solutions, with leadership in low-power design and precision analog integration.

The MSP430FR2000IRLLR belongs to the MSP430™ FRAM value-line sensing portfolio, engineered specifically for cost-sensitive, battery-operated sensing applications demanding ultra-low standby current and robust nonvolatile memory.

FAQ

Does the MSP430FR2000IRLLR include an analog-to-digital converter (ADC)?

No, the MSP430FR2000IRLLR does not include an ADC. Per the official datasheet SLASE78E Section 4 (Functional Block Diagram) and Table 6-1 (Device Comparison), the ADC is explicitly omitted from all MSP430FR2000 variants - including MSP430FR2000IRLLR. The device retains the enhanced comparator (eCOMP0) with 6-bit DAC reference for threshold-based analog sensing, but lacks the 10-bit SAR ADC found in MSP430FR21xx family members.

What is the maximum operating frequency of the MSP430FR2000IRLLR?

The MSP430FR2000IRLLR supports a maximum CPU clock frequency of 16 MHz, achieved using its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This frequency is stable across the full 1.8–3.6 V supply range and room temperature, with ±1% accuracy when calibrated against the internal 32-kHz REFO reference - eliminating the need for an external high-frequency crystal in most timing-critical applications.

Which debug interface does the MSP430FR2000IRLLR support?

The MSP430FR2000IRLLR supports the Spy-Bi-Wire (SBW) debug interface using two dedicated pins: SBWTCK (pin 3/1) and SBWTDIO (pin 4/2). This 2-wire interface is fully compatible with TI's MSP-FET430U20 programmer and LaunchPad development kits. JTAG is not supported on this device; the TCK/TMS/TDO/TDI pins are remapped to GPIO or peripheral functions and cannot be used for boundary-scan or full JTAG debugging.

How many GPIO pins does the MSP430FR2000IRLLR provide, and what special capabilities do they offer?

The MSP430FR2000IRLLR provides 12 general-purpose I/O pins (P1.0–P1.7, P2.0–P2.1, plus TEST and RST configured as GPIO post-reset). All 12 support capacitive touch sensing with hardware acceleration, interrupt-on-change wakeup from all low-power modes (including LPM4.5), and configurable pull-up/pull-down resistors. Four pins on P1 and four on P2 are designated as primary interrupt sources, enabling rapid response to external events in battery-constrained systems.

Is the MSP430FR2000IRLLR pin-compatible with other devices in the MSP430FR2xxx family?

Yes, the MSP430FR2000IRLLR is pin-compatible with MSP430FR2100IRLLR, MSP430FR2110IRLLR, and MSP430FR2111IRLLR in the 24-pin VQFN (RLL) package. All share identical pin numbering, electrical characteristics, and peripheral mappings - differing only in FRAM/RAM size and presence of ADC. This allows direct substitution in existing designs when memory or analog requirements change, provided firmware is updated to match the target device's memory map and feature set.