Texas Instruments MSP430G2230ID

Overview

MSP430G2230ID from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 2 KB Flash, 128 B RAM, integrated 10-bit 200-ksps ADC, Universal Serial Interface (USI) supporting SPI and I2C, and Timer_A with two capture/compare registers - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-1-µs wake-up and <0.1 µA off-mode current.

For engineers reviewing the MSP430G2230ID datasheet, MSP430G2230ID pinout, MSP430G2230ID application, or MSP430G2230ID equivalent, key selection criteria include its 8-pin D package, 1.8–3.6 V supply range, LPM4 current of 0.1 µA at 2.2 V, USI peripheral compatibility, and ADC10 autoscan capability across four analog inputs.

Technical Context

The MSP430G2230ID integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1/8/12/16 MHz, enabling sub-1-µs wake-up from LPM4. Its basic clock system provides ACLK (from VLO or external crystal), MCLK (CPU clock), and SMCLK (peripheral clock), with no LFXT1 oscillator support - VLOCLK must be selected via BCSCTL3.

It implements four GPIO pins on Port P1 (P1.2, P1.5, P1.6, P1.7), each configurable for digital I/O, timer capture/compare, ADC input (A2/A5/A6/A7), or USI functions (SCLK/SDO/SDI/SCL/SDA). The USI module operates in synchronous mode only and lacks UART capability.

Key Specifications

Pinout & Package

8-pin SOIC (D package), 3.9 mm × 4.9 mm body, 1.27 mm lead pitch, gull-wing leads, RoHS-compliant matte tin finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2210ID, the MSP430G2230ID adds essential ADC and USI capabilities at identical footprint and power; versus STM32L011F4P6, it delivers lower system-level power and simpler design at the cost of ARM ecosystem support and memory headroom.

Availability

MSP430G2230ID is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial control interfaces, and smart energy metering modules requiring stable component supply across long-lifecycle industrial programs.

Supply support for MSP430G2230ID 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 for industrial, automotive, and consumer markets.

The MSP430G2xx family targets ultra-low-power portable measurement and sensing applications, emphasizing rapid wake-up, minimal active/standby current, and integration of essential analog and timing peripherals in compact packages.

FAQ

What is the maximum operating frequency of the MSP430G2230ID?

The MSP430G2230ID supports a maximum MCLK frequency of 16 MHz at VCC ≥ 3.3 V, with factory-calibrated DCO settings for 1/8/12/16 MHz. At 2.7 V, max frequency is 12 MHz; at 1.8 V, it is limited to 6 MHz. These values are specified under 50% ±10% duty cycle conditions and assume proper clock configuration via BCSCTL1 and DCOCTL registers.

Does the MSP430G2230ID support UART communication?

No, the MSP430G2230ID does not include a UART peripheral. It features only the Universal Serial Interface (USI), which supports synchronous protocols: SPI (3-wire) and I²C (2-wire). Asynchronous serial (UART) requires bit-banging or external transceivers - the device lacks dedicated UART hardware or USCI modules found in higher-tier MSP430 families.

How many analog input channels does the ADC10 module support on the MSP430G2230ID?

The ADC10 module on the MSP430G2230ID supports four analog input channels: A2 (P1.2), A5 (P1.5), A6 (P1.6), and A7 (P1.7). These are accessible via the ADC10AE register and can be scanned automatically in sequence using ADC10CTL1's CONSEQ bits - enabling efficient multi-channel acquisition without CPU intervention.

What debug interface does the MSP430G2230ID use, and how many pins are required?

The MSP430G2230ID uses the Spy-Bi-Wire (SBW) interface for programming and debugging, requiring only two pins: SBWTDIO (Pin 6, shared with RST/NMI) and SBWTCK (Pin 7, shared with TEST). This 2-wire interface replaces full 4-wire JTAG, reducing test point count and simplifying PCB layout while maintaining full flash erase/write and breakpoint debugging capability.

Can the MSP430G2230ID operate from a 1.8-V supply while running the ADC10?

Yes, the MSP430G2230ID supports ADC10 operation across its full supply range of 1.8 V to 3.6 V. At 1.8 V, the ADC10 maintains 10-bit resolution with internal reference enabled; however, sampling rate is reduced due to slower DCO and analog settling - maximum throughput drops to approximately 100 ksps. External reference use is not supported in this device.