Texas Instruments MSP430G2153IRHB32R

Overview

MSP430G2153IRHB32R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 16 KB flash, 256 B RAM, one 16-bit Timer_A with three capture/compare registers, on-chip comparator (Comp_A+), and Spy-Bi-Wire debug interface - designed for battery-powered sensor nodes and portable instrumentation requiring sub-1 µs wake-up and <0.1 µA off-mode retention.

For engineers reviewing the MSP430G2153IRHB32R datasheet, MSP430G2153IRHB32R pinout, MSP430G2153IRHB32R application, or MSP430G2153IRHB32R equivalent, key selection criteria include verified 32-pin QFN package compatibility, confirmed absence of ADC10 (distinguishing it from G2x53 variants), validated USCI_A0/USCI_B0 serial peripheral support, and documented 1.8–3.6 V supply operation with five low-power modes.

Technical Context

The MSP430G2153IRHB32R implements a 16-bit CPU with seven addressing modes and 51-instruction set, integrated with two 16-bit timers (TA0 and TA1), USCI_A0 (UART/SPI/IrDA) and USCI_B0 (SPI/I²C), and Comp_A+ with eight input channels - all clocked by a digitally controlled oscillator (DCO) calibrated to 1 MHz, 8 MHz, 12 MHz, and 16 MHz at factory.

It lacks ADC10 functionality per Table 1 and functional block diagrams, distinguishing it from MSP430G2x53 family members; instead, analog sensing relies solely on the comparator for slope A/D conversion or threshold detection, with reference voltages derived from internal VREF+/VREF− or external sources via P1.3/P1.4 pins.

Key Specifications

Pinout & Package

32-pin QFN (RHB) package with 5 × 5 mm footprint, exposed thermal pad (recommended connection to DVSS), and 0.5 mm pitch. Pin 1 marked via top-side dot; pins 8 and 32 are NC (no connect).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2153IRHB32R, the MSP430G2213IRHB32R offers identical analog and communication features at lower flash density, while the MSP430G2131IRHB32R sacrifices USCI_B0, Comp_A+, and Timer1_A - making MSP430G2153IRHB32R the optimal balance of peripheral richness, memory headroom, and QFN footprint for mid-complexity ultra-low-power designs.

Availability

MSP430G2153IRHB32R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, industrial control panels, and energy harvesting IoT endpoints requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for MSP430G2153IRHB32R 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, reliability, and broad ecosystem support.

The MSP430G2xx series targets ultra-low-power embedded applications including battery-operated sensors, portable instrumentation, and energy-constrained IoT edge nodes - prioritizing nanowatt operation, fast wake-up, and integrated analog peripherals without sacrificing code efficiency.

FAQ

Does MSP430G2153IRHB32R include an ADC10 module?

No. The MSP430G2153IRHB32R does not include the ADC10 analog-to-digital converter. This is explicitly confirmed in Table 1 ("ADC10 Channel" column shows "-" for all MSP430G2x13 devices) and functional block diagrams, which show ADC10 only in MSP430G2x53 variants. Analog measurement must be performed using the on-chip comparator (Comp_A+) in slope-A/D or window-compare mode.

What is the maximum operating frequency of MSP430G2153IRHB32R?

The MSP430G2153IRHB32R supports a maximum MCLK frequency of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) with factory-calibrated settings stored in information memory segment A. DCO calibration values for 1 MHz, 8 MHz, 12 MHz, and 16 MHz are provided at 3 V and 30°C per Table 11.

Which debug interface does MSP430G2153IRHB32R support?

The MSP430G2153IRHB32R supports the Spy-Bi-Wire (SBW) interface using pins RST/NMI/SBWTDIO (pin 23) and TEST/SBWTCK (pin 24). This 2-wire variant of JTAG enables full flash programming, breakpoint debugging, and register inspection with minimal PCB routing overhead compared to standard 4-wire JTAG.

Can MSP430G2153IRHB32R drive capacitive touch buttons?

Yes. The MSP430G2153IRHB32R supports capacitive touch sensing on all P1.x and P2.x pins via built-in pin-oscillator circuitry. Enabling the PxIES and PxIFG bits configures the pin for oscillation, and timing changes due to finger proximity are measured using Timer_A - eliminating need for external RC networks or dedicated touch controllers.

What are the supply voltage requirements for MSP430G2153IRHB32R?

The MSP430G2153IRHB32R operates from 1.8 V to 3.6 V on DVCC and AVCC. It includes an integrated brownout detector that asserts reset if DVCC falls below ~1.7 V. Separate AVCC/AVSS pins provide noise-isolated analog power for the comparator, improving accuracy in mixed-signal environments.