Texas Instruments MSP430G2201IRSARQ1

Overview

MSP430G2201IRSARQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade 16-bit RISC microcontroller with 2 KB flash, 128 B RAM, and 10 I/O pins. It operates from 1.8 V to 3.6 V, draws 220 µA in active mode at 1 MHz/2.2 V, and supports ultra-fast wake-up (<1 µs) from standby mode. It targets low-cost sensor systems requiring robust timing, brownout protection, and Spy-Bi-Wire programmability in engine control modules and body electronics.

For engineers reviewing the MSP430G2201IRSARQ1 datasheet, MSP430G2201IRSARQ1 pinout, MSP430G2201IRSARQ1 application, or MSP430G2201IRSARQ1 equivalent, key selection criteria include its QFN-16 automotive qualification, absence of integrated analog comparator (unlike MSP430G2211IRSARQ1), verified 16-MHz DCO calibration, and compatibility with MSP430x2xx family toolchains and firmware libraries.

Technical Context

The MSP430G2201IRSARQ1 implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its clock system integrates a digitally controlled oscillator (DCO) calibrated to 1 MHz and 16 MHz, internal very-low-power LF oscillator, and support for external 32-kHz crystal or digital clock sources - all selectable via the basic clock module.

It features five software-selectable low-power modes (LPM0–LPM4), with standby current at 0.5 µA and off-mode RAM retention at 0.1 µA. The device includes Timer_A2 with two capture/compare registers, brownout detector, on-chip debug logic via Spy-Bi-Wire, and serial onboard programming without external voltage.

Key Specifications

Pinout & Package

Package: 16-pin QFN (RSA), 4 mm × 4 mm, exposed thermal pad (to be connected to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2211IRSARQ1 and MSP430G2001IRSARQ1, the MSP430G2201IRSARQ1 delivers optimal balance of programmable flash capacity, Timer_A2 versatility, and automotive qualification - making it the preferred choice for sensor preprocessing and real-time control where analog comparison is handled externally.

Availability

MSP430G2201IRSARQ1 is available at Aetrix Electronics and suitable for automotive engine management, body electronics, and tire pressure monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSP430G2201IRSARQ1 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 for automotive, industrial, and consumer markets.

The MSP430G2x01 product line delivers ultra-low-power mixed-signal microcontrollers optimized for cost-sensitive automotive sensor nodes and battery-operated control modules requiring AEC-Q100 qualification and sub-µA standby operation.

FAQ

What is the maximum operating frequency of the MSP430G2201IRSARQ1?

The MSP430G2201IRSARQ1 supports a maximum DCO frequency of 16 MHz, factory-calibrated and verified per SLAS775E specifications. This allows execution of real-time tasks such as PWM generation and sensor sampling at high throughput while maintaining ultra-low power consumption in active mode.

Does the MSP430G2201IRSARQ1 include an analog comparator?

No, the MSP430G2201IRSARQ1 does not include an analog comparator. Unlike the MSP430G2211IRSARQ1, this variant omits the Comparator_A+ module. Analog comparison must be implemented externally or via slope-based ADC techniques using Timer_A2 and GPIO.

What debug interface does the MSP430G2201IRSARQ1 support?

The MSP430G2201IRSARQ1 supports Spy-Bi-Wire (SBW), a 2-wire debug interface using pins RST/NMI/SBWTDIO and TEST/SBWTCK. It enables full flash programming, breakpoint debugging, and register inspection without requiring a 4-wire JTAG header.

Is the MSP430G2201IRSARQ1 qualified for automotive use?

Yes, the MSP430G2201IRSARQ1 is AEC-Q100 qualified (Grade 2, −40°C to +105°C) and explicitly designated as an automotive part (indicated by the "Q1" suffix). It meets stringent reliability, ESD, and thermal cycling requirements for under-hood and cabin applications.

What clock sources are available on the MSP430G2201IRSARQ1?

The MSP430G2201IRSARQ1 provides three clock sources: an internal digitally controlled oscillator (DCO) calibrated to 1 MHz and 16 MHz, an internal very-low-power low-frequency oscillator (VLO), and support for external 32-kHz crystals or digital clock inputs via XIN/XOUT pins.