Texas Instruments MSP430F2011IN

Overview

MSP430F2011IN from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2KB+256B flash memory, 128B RAM, and a 16-bit Timer_A with two capture/compare registers. It operates from 1.8 V to 3.6 V, draws 220 µA at 1 MHz/2.2 V in active mode, and supports sub-1 µs wake-up from standby. It targets battery-powered sensor nodes requiring analog signal acquisition, low-energy computation, and minimal footprint.

For engineers reviewing the MSP430F2011IN datasheet, MSP430F2011IN pinout, MSP430F2011IN application, or MSP430F2011IN equivalent, key selection criteria include its PDIP-14 package compatibility, absence of integrated ADC (distinguishing it from MSP430F2012IN/F2013IN), on-chip comparator capability, Spy-Bi-Wire debug interface, and support for five power-saving modes including LPM4 with 0.1 µA RAM retention.

Technical Context

The MSP430F2011IN implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, and 16 MHz, plus internal low-frequency and external crystal (32 kHz) support.

This device belongs to the MSP430F20x1 family variant and includes an analog comparator with eight-channel input multiplexing (CA0–CA7), comparator output routing (CAOUT), and dedicated comparator reference inputs. It lacks both the 10-bit ADC (MSP430F20x2) and 16-bit sigma-delta ADC (MSP430F20x3), confirming its role as a comparator-centric, cost-optimized MCU for threshold detection and slope A/D applications.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual-inline package (PDIP-N), 0.3-inch width, through-hole mountable. Pin pitch: 0.1 inch. RoHS-compliant lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2001IN, the MSP430F2011IN provides double flash capacity and full Timer_A compare capability for richer firmware and dual-output control; compared with MSP430F2012IN, it trades ADC resolution for lower power and faster comparator response - ideal for event-driven, not measurement-driven, systems.

Availability

MSP430F2011IN is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, energy-harvesting data loggers, and industrial threshold detectors requiring stable component supply across long-lifecycle deployments.

Supply support for MSP430F2011IN 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 90 years of innovation in low-power design.

The MSP430F20xx series was engineered specifically for ultra-low-power mixed-signal applications in battery-constrained environments, emphasizing rapid wake-up, integrated analog peripherals, and minimal active/sleep current.

FAQ

What is the maximum operating frequency of the MSP430F2011IN?

The MSP430F2011IN supports a maximum DCO frequency of 16 MHz, factory-calibrated to ±1% accuracy. This allows execution at up to 16 million instructions per second with 62.5-ns cycle time. The device does not require an external crystal to achieve this speed, as the internal DCO is fully functional across its voltage range (1.8–3.6 V). MSP430F2011IN maintains timing integrity without external timing components in most timing-tolerant applications.

Does the MSP430F2011IN include an analog-to-digital converter (ADC)?

No, the MSP430F2011IN does not include an ADC. It belongs to the MSP430F20x1 family variant, which features an on-chip analog comparator but omits both the 10-bit ADC (found in MSP430F20x2) and the 16-bit sigma-delta ADC (found in MSP430F20x3). Its analog capability centers on the comparator with eight input channels (CA0–CA7) and CAOUT output, making it suitable for slope A/D or binary threshold detection - not digitized voltage measurement. MSP430F2011IN relies on external ADCs or comparator-based techniques for analog signal conversion.

What debug interface does the MSP430F2011IN support?

The MSP430F2011IN supports Spy-Bi-Wire (SBW), a 2-wire variant of JTAG using SBWTDIO and SBWTCK pins. This interface enables full in-system programming, flash erasure, breakpoint debugging, and real-time register inspection. Unlike full 4-pin JTAG, Spy-Bi-Wire reuses existing I/O pins (RST/NMI/SBWTDIO and TEST/SBWTCK), eliminating dedicated debug headers and reducing PCB layout complexity. MSP430F2011IN does not support UART-based or SWD debug protocols.

What package options are available for the MSP430F2011IN?

The MSP430F2011IN is offered exclusively in the 14-pin plastic dual-inline package (PDIP-N), with 0.3-inch body width and 0.1-inch pin pitch. It is not available in TSSOP (PW) or QFN (RSA) variants - those packages carry different suffixes (e.g., MSP430F2011IPW, MSP430F2011IRSA). The PDIP-N package supports through-hole assembly and prototyping on breadboards or perfboards, and is rated for operation from –40°C to +85°C. MSP430F2011IN's pinout matches the functional mapping defined for the MSP430F20x1 family in SLAS491I.

How does the MSP430F2011IN handle power supply supervision?

The MSP430F2011IN integrates a brownout detector that monitors VCC and asserts a reset if supply voltage drops below a threshold (~1.3 V typical). This ensures reliable startup and prevents erratic operation during power ramp-up or battery depletion. The device also includes POR (power-on reset) and RST/NMI pin assertion for external reset control. No external supervisor IC is required for basic supply monitoring, though system-level designs may add external reset supervisors for tighter voltage tolerances or watchdog functionality. MSP430F2011IN's internal brownout circuit is enabled by default after power-on.