Texas Instruments MSP430G2352IN20

Overview

MSP430G2352IN20 from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller in 20-pin PDIP packaging, featuring a 10-bit 200-ksps ADC with internal reference, 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) supporting SPI and I²C, and on-chip comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.

For engineers reviewing the MSP430G2352IN20 datasheet, MSP430G2352IN20 pinout, MSP430G2352IN20 application, or MSP430G2352IN20 equivalent, key selection criteria include ADC10 channel count (8-channel), RAM size (256 B), flash capacity (4 KB), low-power mode timing (sub-1 µs wake-up), and PDIP-20 package compatibility with legacy prototyping and industrial control boards.

Technical Context

The MSP430G2352IN20 implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus LF oscillator and 32-kHz crystal support - all selectable via BCSCTL1/2/3 and DCOCTL registers.

Peripheral integration includes USI for synchronous serial communication (SPI/I²C), Comparator_A+ with eight input channels, and ADC10 with autoscan, sample-and-hold, and internal reference - all accessible through dedicated memory-mapped registers (e.g., ADC10CTL0/1, USICTL0/1, CACTL1/2) and interrupt vectors at 0xFFEAh (ADC10IFG) and 0xFFE8h (USIIFG).

Key Specifications

Pinout & Package

Package: 20-pin Plastic Dual In-line Package (PDIP), 0.600-inch width, through-hole mounting compatible with breadboards and PCB sockets.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2452IN20 and MSP430G2332IN20, the MSP430G2352IN20 uniquely balances 4 KB flash, full ADC10 capability, and PDIP-20 compatibility - making it optimal for cost-sensitive, analog-intensive embedded designs where firmware footprint is constrained but sensor interface fidelity is essential.

Availability

MSP430G2352IN20 is available at Aetrix Electronics and suitable for environmental monitoring, industrial HMI, portable medical devices, and smart metering requiring stable component supply across multi-year production cycles.

Supply support for MSP430G2352IN20 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 MSP430G2xx family delivers ultra-low-power mixed-signal microcontrollers optimized for battery-operated sensor systems, portable instrumentation, and energy-constrained IoT edge nodes - emphasizing sub-µA sleep currents and fast wake-up responsiveness.

FAQ

What is the maximum ADC sampling rate supported by the MSP430G2352IN20?

The MSP430G2352IN20 supports a maximum ADC10 sampling rate of 200 ksamples per second (ksps) when using the internal oscillator or external clock source configured for optimal timing. This rate enables high-fidelity capture of transient analog signals such as audio envelopes or pulse waveforms. The MSP430G2352IN20 achieves this performance while maintaining 10-bit resolution and internal reference stability across its 1.8–3.6 V operating range.

Does the MSP430G2352IN20 support hardware I²C communication?

Yes, the MSP430G2352IN20 supports hardware I²C communication via its Universal Serial Interface (USI) module, which can be configured for I²C master or slave operation using dedicated SCL and SDA pins (P1.6 and P1.7). The USI handles clock stretching, arbitration, and ACK/NACK generation autonomously, reducing CPU overhead. The MSP430G2352IN20 requires no external pull-up resistors on these lines if internal pull-ups are enabled, though external 4.7-kΩ resistors are recommended for robust bus operation.

What package type and pin count does the MSP430G2352IN20 use?

The MSP430G2352IN20 uses a 20-pin Plastic Dual In-line Package (PDIP) with 0.600-inch body width and standard 0.1-inch pin pitch. This through-hole package is compatible with prototyping breadboards, socket-based test fixtures, and legacy industrial PCB layouts. The MSP430G2352IN20 shares pinout compatibility with other G2x52-series devices in PDIP-20 packaging, enabling drop-in replacement within the same family for design reuse.

Can the MSP430G2352IN20 operate from a single 3.3-V supply?

Yes, the MSP430G2352IN20 operates reliably across a supply voltage range of 1.8 V to 3.6 V, fully encompassing standard 3.3-V logic rails. At 3.3 V, the device delivers enhanced noise immunity and stable ADC reference performance while maintaining ultra-low active-mode current (220 µA at 1 MHz). The MSP430G2352IN20's brownout detector activates at ~1.7 V, ensuring safe reset behavior even during gradual supply droop in 3.3-V systems.

How many I/O pins with capacitive touch capability does the MSP430G2352IN20 provide?

The MSP430G2352IN20 provides up to 16 I/O pins with integrated capacitive touch capability via its PinOsc module - supporting self- and mutual-capacitance sensing without external components. These pins are distributed across Port P1 (8 pins) and Port P2 (8 pins), with individual enable/disable control per pin. The MSP430G2352IN20's hardware-accelerated touch engine allows simultaneous scanning of multiple electrodes while consuming minimal CPU resources in low-power modes.