Texas Instruments MSP430G2212IN20

Overview

MSP430G2212IN20 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 20-pin PDIP packaging, featuring 2 kB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, on-chip comparator, and eight programmable I/O pins - deployed in battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2212IN20 datasheet, MSP430G2212IN20 pinout, MSP430G2212IN20 application, or MSP430G2212IN20 equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-1 µs wake-up from standby mode, Spy-Bi-Wire debug interface, brownout detection, and absence of integrated ADC10 - distinguishing it from MSP430G2x52 variants.

Technical Context

The MSP430G2212IN20 implements a 16-bit CPU with seven addressing modes and 51 instructions, paired with a basic clock module supporting internal DCO (calibrated at 1/8/12/16 MHz), LF oscillator, and external crystal input. Its peripheral set excludes ADC10 but includes USI, Comparator_A+, Timer_A3, and digital I/O with individually configurable pullup/pulldown resistors and capacitive-touch enable bits.

Power management is governed by six operating modes - Active, LPM0–LPM4 - with standby current as low as 0.5 µA and off-mode (RAM retention) at 0.1 µA. Reset and non-maskable interrupt are handled via shared RST/NMI/SBWTDIO pin, while debug uses dedicated TEST/SBWTCK and SBWTDIO signals in Spy-Bi-Wire configuration.

Key Specifications

Pinout & Package

Package: 20-pin Plastic Dual In-line Package (PDIP), 0.3 inch width, through-hole mounting compatible with standard prototyping and production workflows.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2232IN20, MSP430G2212IN20 saves BOM cost and eliminates ADC-related layout complexity where analog conversion is handled externally; versus MSP430G2211IN20, it delivers essential USI-based sensor interfacing without increasing power or footprint.

Availability

MSP430G2212IN20 is available at Aetrix Electronics and suitable for smart utility meter sensor nodes, portable medical glucose monitors, industrial temperature loggers, wireless HVAC sensor terminals, and battery-backed data acquisition systems requiring stable component supply across multi-year production cycles.

Supply support for MSP430G2212IN20 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 MSP430G2xx family targets ultra-low-power embedded applications including portable instrumentation, sensor networks, and energy-harvesting systems - designed to maximize battery life while maintaining real-time responsiveness and robust peripheral integration.

FAQ

Does MSP430G2212IN20 include an integrated analog-to-digital converter (ADC)?

No, MSP430G2212IN20 does not include an ADC10 module. It belongs to the MSP430G2x12 series, which omits the 10-bit ADC present in G2x52 variants. Analog signal conditioning must be performed externally or via the on-chip Comparator_A+ for threshold-based decisions. This omission reduces cost and power while retaining core timing, communication, and low-power capabilities in MSP430G2212IN20.

What debug interface does MSP430G2212IN20 support?

MSP430G2212IN20 supports Spy-Bi-Wire (SBW), a two-wire variant of JTAG implemented on pins RST/NMI/SBWTDIO and TEST/SBWTCK. This interface enables full in-system programming, breakpoint debugging, and memory inspection without requiring a four-wire JTAG header. No external programming voltage is needed - MSP430G2212IN20 derives all debug power from DVCC.

Can MSP430G2212IN20 operate without an external crystal?

Yes, MSP430G2212IN20 can operate without an external crystal. Its basic clock module includes a factory-calibrated digitally controlled oscillator (DCO) with four trim points (1/8/12/16 MHz), allowing fully functional operation using only internal resources. External crystals (e.g., 32.768 kHz) are optional and used only when higher timing accuracy or low-frequency RTC capability is required in MSP430G2212IN20 designs.

How many I/O pins does MSP430G2212IN20 provide, and what are their capabilities?

MSP430G2212IN20 provides 16 total I/O pins: eight on Port 1 (P1.0–P1.7) and eight on Port 2 (P2.0–P2.7, though P2.6 and P2.7 are multiplexed with XIN/XOUT). Each pin supports independent direction control, output value setting, input reading, interrupt edge selection, and programmable pullup/pulldown resistors. P1.x pins also support capacitive-touch oscillator enable for touch-button interfaces in MSP430G2212IN20 applications.

What is the maximum operating frequency of MSP430G2212IN20?

The maximum guaranteed operating frequency of MSP430G2212IN20 is 16 MHz, achieved using the internal DCO with appropriate RSEL and DCO register settings. The device's instruction cycle time is 62.5 ns at this speed, and all peripherals - including Timer_A and USI - are fully functional at 16 MHz. Operation above 16 MHz is not characterized or supported per the SLAS722G datasheet for MSP430G2212IN20.