Texas Instruments MSP430G2312IPW14R

Overview

MSP430G2312IPW14R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 14-pin TSSOP packaging, featuring 4 KB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and supports capacitive-touch I/O - ideal for battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2312IPW14R datasheet, MSP430G2312IPW14R pinout, MSP430G2312IPW14R application, or MSP430G2312IPW14R equivalent, key selection criteria include its 14-pin TSSOP footprint, absence of integrated ADC10 (distinguishing it from G2x52 variants), ultra-low standby current (0.5 µA), Spy-Bi-Wire debug interface, and support for up to 8 capacitive-touch enabled I/O pins.

Technical Context

The MSP430G2312IPW14R 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 external crystal support - all configurable via BCSCTL registers.

It features two 8-bit I/O ports (P1 and P2), with individually programmable pullup/pulldown resistors and edge-selectable interrupts on all P1/P2 pins. The USI module provides hardware-level SPI and I²C protocol handling without CPU overhead, while the Comparator_A+ supports eight input channels and slope A/D conversion.

Key Specifications

Pinout & Package

Package: 14-pin TSSOP (PW14), 5.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2212IPW14R, the MSP430G2312IPW14R provides double RAM and full Timer_A capture functionality; versus MSP430G2332IPW14R, it trades UART capability for lower gate count and marginally lower active power, making it optimal for SPI/I²C-only sensor concentrators.

Availability

MSP430G2312IPW14R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply, long-term manufacturability, and TI's qualified automotive-grade process.

Supply support for MSP430G2312IPW14R 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 over 90 years of innovation in power efficiency and reliability.

The MSP430G2xx family targets ultra-low-power embedded applications where battery life, small footprint, and integrated analog peripherals are critical - designed specifically for sensor interfaces, portable instrumentation, and energy-constrained IoT endpoints.

FAQ

Does MSP430G2312IPW14R include an integrated ADC?

No, MSP430G2312IPW14R does not include the ADC10 module. It belongs to the G2x12 subfamily, which omits the 10-bit analog-to-digital converter present in G2x52 devices. Its analog capability is limited to the 8-channel Comparator_A+ - confirmed by Table 1, functional block diagrams, and the "NOTE: ADC10 pin functions are available only on MSP430G2x52" in the datasheet.

What is the maximum operating frequency of MSP430G2312IPW14R?

The MSP430G2312IPW14R supports a maximum MCLK frequency of 16 MHz, achieved via its factory-calibrated Digital Controlled Oscillator (DCO). This is explicitly stated in the "Basic Clock Module Configurations" section and verified in Table 10 calibration labels (CAL_DCO_16MHz). No external crystal is required to reach this speed.

Can MSP430G2312IPW14R be programmed using standard JTAG?

MSP430G2312IPW14R uses Spy-Bi-Wire (SBW), a 2-wire subset of JTAG, not full 4-wire JTAG. Pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11) implement SBW - confirmed in Table 2 and the "On-Chip Emulation Logic With Spy-Bi-Wire Interface" feature list. Standard JTAG adapters require SBW mode configuration or dedicated TI tools like MSP-FET.

How many I/O pins are available on the MSP430G2312IPW14R package?

The MSP430G2312IPW14R in 14-pin TSSOP (PW14) provides 10 usable I/O pins: P1.0–P1.7 (8 pins), P2.6, and P2.7. Per Table 1 and the "DEVICE PINOUTS" section, P2.0–P2.5 are not bonded out in the 14-pin variant - only two P2 pins (XIN/P2.6 and XOUT/P2.7) are accessible.

Is MSP430G2312IPW14R compatible with MSP430G2412IPW14R in terms of pinout and software?

Yes, MSP430G2312IPW14R is pin-compatible with MSP430G2412IPW14R (and other G2x12 variants in PW14), sharing identical pin functions and electrical characteristics. Software compatibility is high across the G2x12 family due to common peripheral register maps and instruction set - though flash size (4 KB vs. 8 KB) and RAM (256 B vs. 256 B) differ, requiring only linker script adjustment.