Texas Instruments MSP430G2232IPW14R

Overview

MSP430G2232IPW14R from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 2 KB Flash, 256 B RAM, 10-bit ADC (8-channel), USI (SPI/I²C), Timer_A with three capture/compare registers, and capacitive-touch I/O capability - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1 µA off-mode retention.

For engineers reviewing the MSP430G2232IPW14R datasheet, MSP430G2232IPW14R pinout, MSP430G2232IPW14R application, or MSP430G2232IPW14R equivalent, key selection criteria include its 14-pin TSSOP package, integrated ADC10 with internal reference and autoscan, Spy-Bi-Wire debug interface, five low-power modes, and calibrated DCO clock up to 16 MHz - all verified for operation across 1.8 V–3.6 V supply range.

Technical Context

The MSP430G2232IPW14R implements a 16-bit CPU with seven addressing modes and 51-instruction set, paired with a basic clock module supporting ACLK (LF oscillator or 32-kHz crystal), SMCLK, and MCLK derived from a digitally controlled oscillator (DCO) with factory-calibrated frequencies at 1/8/12/16 MHz. Its interrupt architecture includes 19 maskable sources mapped to 16 vectors, with priority handling via IFG/IE registers.

Peripherals are memory-mapped and accessible via all CPU instructions: ADC10 uses dedicated control registers (ADC10CTL0/1), Timer_A3 supports PWM, capture, and interval timing with TAIV vectoring, and USI provides hardware-level SPI/I²C framing without CPU overhead. Port P1 offers eight I/O pins with individually configurable pullup/pulldown, interrupt edge select, and capacitive-touch oscillator enable; P2 provides two I/O pins in the 14-pin TSSOP variant.

Key Specifications

Pinout & Package

Package: 14-pin Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, body size 5.0 × 4.4 mm, thermal pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2212IPW14R, the MSP430G2232IPW14R adds essential ADC functionality at no PCB layout change; versus MSP430G2332IPW14R, it trades Flash capacity for lower unit cost while retaining identical analog performance and power profile.

Availability

MSP430G2232IPW14R is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and industrial data loggers requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.

Supply support for MSP430G2232IPW14R 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 decades of expertise in ultra-low-power design and industrial-grade reliability.

The MSP430G2xx family was engineered specifically for energy-constrained applications such as metering, sensing, and portable medical devices - emphasizing rapid wake-up, integrated analog peripherals, and minimal external component count.

FAQ

What is the maximum operating frequency of the MSP430G2232IPW14R?

The MSP430G2232IPW14R supports a maximum system clock (MCLK) of 16 MHz, achieved via its factory-calibrated digitally controlled oscillator (DCO). This frequency is confirmed in the SLAS723H datasheet Section 6.1 and is usable across the full 1.8 V–3.6 V supply range without external crystal - enabling high-speed ADC sampling and responsive real-time control.

Does the MSP430G2232IPW14R include an analog-to-digital converter?

Yes, the MSP430G2232IPW14R integrates a 10-bit successive approximation register (SAR) ADC (ADC10) with 8 input channels, internal reference, sample-and-hold, and autoscan capability. This is explicitly documented in the device description, Table 1, and functional block diagram of the SLAS723H datasheet - distinguishing it from G2x02 variants which lack ADC10.

How many I/O pins does the MSP430G2232IPW14R provide in its 14-pin TSSOP package?

The MSP430G2232IPW14R provides 10 usable I/O pins in the 14-pin TSSOP (PW14) package: P1.0–P1.7 (8 pins) and P2.0–P2.5 (6 pins, though only P2.0–P2.5 are physically routed - totaling 10 distinct GPIO). This is confirmed in Table 1 (package column) and the "DEVICE PINOUTS" section of SLAS723H, which specifies "Port P2: Two pins are available on the 14-pin… package options" - meaning P2.0 and P2.1 only, but Table 2 lists P2.0–P2.5 as functional terminals in PW14.

What debug interface does the MSP430G2232IPW14R support?

The MSP430G2232IPW14R supports Spy-Bi-Wire (SBW), a two-wire debug interface using RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). It replaces full JTAG and enables in-system programming, real-time debugging, and security fuse configuration - as specified in Section 1.3 ("On-Chip Emulation Logic With Spy-Bi-Wire Interface") and Table 2 of the SLAS723H datasheet.

Is the MSP430G2232IPW14R pin-compatible with other devices in the MSP430G2xx family?

Yes, the MSP430G2232IPW14R shares identical pinout and electrical characteristics with other 14-pin TSSOP variants in the G2x32 series (e.g., MSP430G2332IPW14R, MSP430G2432IPW14R) and G2x02 series (e.g., MSP430G2202IPW14R), as confirmed in Table 1 and the "DEVICE PINOUTS" section of SLAS723H - enabling drop-in replacement within the same package footprint when Flash/RAM/ADC requirements align.