Texas Instruments MSP430G2402IPW14

Overview

MSP430G2402IPW14 from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller in 14-pin TSSOP packaging, featuring 8 KB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, Universal Serial Interface (USI) for SPI/I²C, and Spy-Bi-Wire debug interface - deployed in battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2402IPW14 datasheet, MSP430G2402IPW14 pinout, MSP430G2402IPW14 application, or MSP430G2402IPW14 equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-1 µs wake-up from LPM4, 220 µA active-mode current at 1 MHz/2.2 V, and absence of integrated ADC10 (distinguishing it from MSP430G2x32 variants).

Technical Context

The MSP430G2402IPW14 implements a 16-bit CPU with seven addressing modes and 51 instructions, paired with a basic clock module supporting DCO (calibrated up to 16 MHz), LF oscillator, and external crystal input. Its power architecture enables five low-power modes (LPM0–LPM4), with LPM4 drawing only 0.1 µA while retaining RAM.

Peripheral integration includes USI for synchronous serial communication (SPI/I²C), Timer_A3 for PWM and capture/compare timing, brownout detection, and on-chip emulation logic. Port P1 supports capacitive-touch sensing via individual pin-oscillator enable bits; Port P2 provides two general-purpose I/O pins in the 14-pin TSSOP package.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2402IPW14, the MSP430G2553IPW20 adds on-chip ADC and I/O count at the cost of larger package and higher active current; the MSP430FR2111IPW16 trades flash for FRAM and reduces timer capability but improves data logging robustness - all three share Spy-Bi-Wire debug and ultra-low-power sleep modes.

Availability

MSP430G2402IPW14 is available at Aetrix Electronics and suitable for smart utility metering, portable medical diagnostics, and industrial HMI applications requiring stable component supply, long-term lifecycle support, and consistent TI manufacturing traceability.

Supply support for MSP430G2402IPW14 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 emphasis on energy efficiency and system-level innovation.

The MSP430G2xx family targets ultra-low-power embedded control in battery-operated and energy-harvesting systems, prioritizing rapid wake-up, minimal active current, and integrated peripherals for sensor interface and human interaction.

FAQ

Does MSP430G2402IPW14 include an integrated analog-to-digital converter?

No, MSP430G2402IPW14 does not include ADC10 functionality. While pin functions like A0–A7 appear in the pinout table, the ADC10 module is explicitly excluded from MSP430G2x02 series devices per the datasheet's "NOTE: ADC10 pin functions are available only on MSP430G2x32." External ADCs or alternative MSP430G2x32 variants must be used for analog signal conversion.

What debug interface does MSP430G2402IPW14 support?

MSP430G2402IPW14 supports Spy-Bi-Wire (SBW), a two-wire variant of JTAG implemented on pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). This interface enables full-speed debugging, flash programming, and real-time emulation without requiring a 4-wire JTAG header, reducing PCB footprint and BOM cost.

How many I/O pins are available on MSP430G2402IPW14 in the 14-pin TSSOP package?

MSP430G2402IPW14 provides eight programmable I/O pins on Port P1 (P1.0–P1.7) and two on Port P2 (P2.6 and P2.7), totaling ten usable digital I/O lines. Pins P2.0–P2.5 are not bonded out in the 14-pin TSSOP package, as confirmed by the functional block diagram and terminal function table.

Can MSP430G2402IPW14 operate from a 1.8 V supply?

Yes, MSP430G2402IPW14 is fully specified for operation from 1.8 V to 3.6 V. At 1.8 V, it supports up to 1 MHz CPU frequency and retains all core functionality including Timer_A, USI, and Spy-Bi-Wire debug - making it suitable for single-cell lithium or two-cell alkaline battery systems without regulation.

Is MSP430G2402IPW14 pin-compatible with other MSP430G2xx devices in TSSOP-14?

Yes, MSP430G2402IPW14 shares identical pinout and package dimensions with other MSP430G2xx 14-pin TSSOP variants (e.g., MSP430G2302IPW14, MSP430G2202IPW14). However, differences in flash size, RAM, and peripheral inclusion (e.g., absence of ADC10) require firmware validation when substituting across the G2x02 family.