Texas Instruments MSP430F2012IN

Overview

MSP430F2012IN 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, achieves active-mode current of 220 µA at 1 MHz/2.2 V, and supports sub-1-µs wake-up from standby mode. It targets battery-powered sensor nodes requiring integrated analog-to-digital conversion and serial communication.

For engineers reviewing the MSP430F2012IN datasheet, MSP430F2012IN pinout, MSP430F2012IN application, or MSP430F2012IN equivalent, key selection criteria include its 14-pin PDIP (N) package, integrated USI supporting SPI/I²C, 10-bit 200-ksps ADC with autoscan, and Spy-Bi-Wire on-chip emulation - all optimized for compact, low-power embedded sensing systems.

Technical Context

The MSP430F2012IN 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 LF and external 32-kHz crystal support.

It features a universal serial interface (USI) configurable for SPI or I²C, a 10-bit successive-approximation ADC with eight input channels and internal reference, and five software-selectable low-power modes - including LPM4 with 0.1 µA RAM retention - all managed via dedicated status register bits and interrupt vector table at 0FFFEh–0FFC0h.

Key Specifications

Pinout & Package

Package: 14-pin plastic dual-inline package (PDIP-N), body width 7.62 mm, lead pitch 2.54 mm, operating temperature range –40°C to +85°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2002IN, the MSP430F2012IN adds essential analog and serial capability for sensor digitization; compared with MSP430F2013IN, it trades ADC resolution for higher throughput and simpler firmware integration in dynamic signal capture.

Availability

MSP430F2012IN is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meter interfaces, and industrial condition monitors requiring stable component supply and long-term production continuity.

Supply support for MSP430F2012IN 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 delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.

The MSP430F20xx series is designed specifically for ultra-low-power mixed-signal applications in battery-operated sensing, metering, and portable instrumentation - prioritizing nanowatt operation, integrated peripherals, and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430F2012IN?

The MSP430F2012IN supports a maximum CPU clock frequency of 16 MHz via its factory-calibrated digitally controlled oscillator (DCO). This is confirmed in the SLAS491I datasheet Section "Basic Clock Module Configurations", which lists internal DCO frequencies up to 16 MHz with ±1% calibration accuracy. The device achieves a 62.5-ns instruction cycle time at this rate, and the DCO stabilizes in less than 1 µs after wake-up from low-power modes.

Does the MSP430F2012IN support hardware UART communication?

No, the MSP430F2012IN does not include a hardware UART peripheral. It features a Universal Serial Interface (USI) module that supports only synchronous protocols: SPI and I²C. Asynchronous serial (UART) must be implemented in firmware using GPIO and Timer_A - a common practice documented in TI application reports like SLAA322. The USI cannot emulate UART without significant CPU overhead and timing constraints.

What are the ADC reference voltage options for the MSP430F2012IN?

The MSP430F2012IN ADC supports three reference sources: internal 1.5 V, internal 2.5 V, or external reference applied to P1.3 (VREF−) and P1.4 (VREF+). The internal references are generated by on-chip bandgap circuitry and require no external components. Selection is controlled via ADC10CTL0 register bits SREFx, and the internal references remain stable across the full 1.8–3.6 V supply range per datasheet Section "ADC10".

Can the MSP430F2012IN operate from a single 1.8 V supply?

Yes, the MSP430F2012IN is fully specified to operate from 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including 16-bit Timer_A, 10-bit ADC (with reduced sampling rate), USI, and all five low-power modes. The datasheet specifies active-mode current as 220 µA at 1 MHz and 2.2 V - at 1.8 V, typical current drops further, enabling extended operation from primary lithium or alkaline cells without regulation.

Is the MSP430F2012IN pin-compatible with other devices in the MSP430F20xx family?

Yes, the MSP430F2012IN shares identical 14-pin PDIP (N) pinout with all MSP430F20xx variants in the same package - including MSP430F2001IN, MSP430F2002IN, MSP430F2003IN, MSP430F2011IN, and MSP430F2013IN. Pin functions are consistent across the family, though peripheral availability (e.g., ADC vs. comparator vs. SD16_A) differs. This allows hardware reuse across designs targeting varying analog requirements.