Texas Instruments MSP430G2113IRHB32R

Overview

MSP430G2113IRHB32R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 2 kB flash, 128 B RAM, two 16-bit Timer_A modules, USCI_A0 (UART/SPI) and USCI_B0 (SPI/I²C), on-chip comparator, and 16 I/O pins - used in battery-powered sensor nodes and portable instrumentation requiring sub-µA standby current.

For engineers reviewing the MSP430G2113IRHB32R datasheet, MSP430G2113IRHB32R pinout, MSP430G2113IRHB32R application, or MSP430G2113IRHB32R equivalent, key selection criteria include verified 0.1 µA off-mode current with RAM retention, confirmed QFN-32 package compatibility, absence of ADC10 (distinguishing it from G2x53 variants), and Spy-Bi-Wire debug interface support.

Technical Context

The MSP430G2113IRHB32R implements a 16-bit CPU with seven addressing modes and 51-instruction set, integrated with dual 16-bit Timer_A modules each offering three capture/compare registers and independent clock sources (ACLK, SMCLK, MCLK). Its basic clock module includes DCO (calibrated up to 16 MHz), VLO, and external crystal support (32 kHz).

It features USCI_A0 supporting UART with auto-baudrate detection (LIN), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave modes. The analog comparator (Comp_A+) has eight input channels and supports slope A/D conversion, while digital I/O includes individually configurable pullup/pulldown resistors and capacitive-touch enable bits.

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 MSP430G2213IRHB32R and MSP430G2103IRHB32R, the MSP430G2113IRHB32R offers optimal balance of flash (2 kB), full USCI_A0/B0 functionality, and minimal power - making it the preferred choice for mixed-protocol sensor edge nodes where RAM >128 B is not required.

Availability

MSP430G2113IRHB32R is available at Aetrix Electronics and suitable for battery-powered sensor nodes, portable medical monitors, industrial control panels, and energy-harvesting IoT endpoints requiring stable component supply and long-term production continuity.

Supply support for MSP430G2113IRHB32R 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 and embedded processing solutions, with over 90 years of innovation in low-power design and mixed-signal integration.

The MSP430G2xx family was engineered specifically for ultra-low-power embedded applications - emphasizing sub-µA sleep currents, fast wake-up, and integrated analog peripherals to minimize external component count in space-constrained, battery-operated systems.

FAQ

Does the MSP430G2113IRHB32R include an analog-to-digital converter (ADC)?

No, the MSP430G2113IRHB32R does not include the ADC10 module. It belongs to the G2x13 series, which omits the 10-bit ADC present in G2x53 variants. Confirmed by Table 1 in SLAS735J and explicit note "ADC10 is available on MSP430G2x53 devices only." The MSP430G2113IRHB32R relies on its on-chip comparator (Comp_A+) for analog threshold detection and slope A/D conversion instead.

What is the maximum operating frequency of the MSP430G2113IRHB32R?

The MSP430G2113IRHB32R supports a maximum system clock (MCLK) of 16 MHz, achieved via its digitally controlled oscillator (DCO) with factory-calibrated settings stored in information memory segment A. This is confirmed in the "Basic Clock Module Configurations" section and functional block diagrams of SLAS735J, with 62.5-ns instruction cycle time at 16 MHz.

Is the MSP430G2113IRHB32R pin-compatible with other devices in the MSP430G2x13 family?

Yes, the MSP430G2113IRHB32R is pin-compatible with all 32-pin QFN (RHB) variants in the MSP430G2x13 family, including MSP430G2213IRHB32R and MSP430G2313IRHB32R. Pin functions and physical layout match per the RHB32 device pinout diagram in SLAS735J, though peripheral enablement (e.g., Timer_A channel count) varies by flash/RAM configuration.

Can the MSP430G2113IRHB32R be programmed in-system without a JTAG emulator?

Yes, the MSP430G2113IRHB32R supports in-system programming via its built-in Bootstrap Loader (BSL) using UART on P1.1 (TXD) and P1.5 (RXD). The BSL is protected by a user-definable password and requires no external programming voltage - enabling field firmware updates with only a UART interface and TI's BSL Scripter utility.

What debug interface does the MSP430G2113IRHB32R support?

The MSP430G2113IRHB32R supports Spy-Bi-Wire (SBW), a 2-wire variant of JTAG implemented on pins RST/NMI/SBWTDIO (Pin 23) and TEST/SBWTCK (Pin 24). This is documented in the "On-Chip Emulation Logic With Spy-Bi-Wire Interface" feature list and pin function table of SLAS735J, enabling full-speed debugging with minimal PCB routing overhead.