Texas Instruments MSP430G2313IRHB32T

Overview

MSP430G2313IRHB32T from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 4 KB flash, 256 B RAM, two 16-bit Timer_A modules with three capture/compare registers each, an 8-channel analog comparator (Comp_A+), and USCI_A0/USCI_B0 serial interfaces. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-1 µs wake-up from standby - ideal for battery-powered sensor nodes and portable instrumentation.

For engineers reviewing the MSP430G2313IRHB32T datasheet, MSP430G2313IRHB32T pinout, MSP430G2313IRHB32T application, or MSP430G2313IRHB32T equivalent, key selection criteria include its QFN-32 package, absence of ADC10 (distinguishing it from G2x53 variants), integrated Spy-Bi-Wire debug interface, and capacitive-touch-capable I/O pins for human-interface designs.

Technical Context

The MSP430G2313IRHB32T implements a 16-bit CPU with seven addressing modes and 51 instructions, executing register-to-register operations in one CPU clock cycle. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated up to 16 MHz, internal LF oscillator, and external crystal support (32 kHz), delivering ACLK, SMCLK, and MCLK to peripherals and CPU.

Peripheral integration includes USCI_A0 supporting UART/LIN/IrDA/SPI and USCI_B0 supporting SPI/I²C, plus dual Timer_A3 modules with independent capture/compare functionality and interrupt vectors mapped to dedicated addresses (e.g., 0xFFF2h for TA0CCR0). The Comp_A+ module provides eight input channels and programmable hysteresis for analog threshold detection or slope A/D conversion.

Key Specifications

Pinout & Package

Package: 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (recommended connection to DVSS).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2213IRHB32T, the MSP430G2313IRHB32T provides double flash capacity for enhanced firmware robustness; versus MSP430G2353IRHB32T, it omits ADC10 to reduce cost and power in pure threshold-detection or digital-control applications.

Availability

MSP430G2313IRHB32T is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and capacitive touch interfaces requiring stable component supply across long-lifecycle programs.

Supply support for MSP430G2313IRHB32T 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 power efficiency and system integration.

The MSP430G2xx family targets ultra-low-power embedded applications where extended battery life, small form factor, and integrated analog peripherals are critical - especially in sensing, metering, and human-interface devices.

FAQ

Does the MSP430G2313IRHB32T include an analog-to-digital converter (ADC)?

No, the MSP430G2313IRHB32T does not include the ADC10 module. It belongs to the G2x13 series, which omits the 10-bit ADC found in G2x53 variants like MSP430G2353IRHB32T. Its analog capability relies solely on the 8-channel Comp_A+ module for threshold detection or slope A/D conversion.

What debug interface does the MSP430G2313IRHB32T support?

The MSP430G2313IRHB32T supports the Spy-Bi-Wire (SBW) interface using the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This 2-wire protocol enables full in-circuit debugging and flash programming without requiring a 4-wire JTAG header, reducing PCB space and connector cost.

Is the MSP430G2313IRHB32T pin-compatible with other devices in the MSP430G2x13 family?

Yes, the MSP430G2313IRHB32T shares identical pinout and electrical characteristics with all other RHB32-packaged MSP430G2x13 devices, including MSP430G2213IRHB32T and MSP430G2413IRHB32T. This allows drop-in replacement within the same flash/RAM configuration tier.

What is the maximum operating frequency of the MSP430G2313IRHB32T DCO?

The digitally controlled oscillator (DCO) in the MSP430G2313IRHB32T is factory-calibrated up to 16 MHz across voltage and temperature ranges. Calibration constants stored in information memory segment A ensure stable operation without external crystal for many timing-critical applications.

Can the MSP430G2313IRHB32T drive capacitive touch sensors directly?

Yes, the MSP430G2313IRHB32T supports capacitive touch sensing on all P1.x and P2.x pins via integrated pin-oscillator circuitry. No external components are required - firmware implements charge-transfer measurement and digital filtering to detect finger proximity through insulating overlays.