Texas Instruments MSP430G2453IPW8RQ1

Overview

MSP430G2453IPW8RQ1 from Texas Instruments is an AEC-Q100 qualified automotive-grade 16-bit RISC microcontroller with 8 KB flash, 512 B RAM, 10-bit 200-ksps ADC, two 16-bit Timer_A modules, USCI_A0/USCI_B0 (UART/I²C/SPI), and capacitive-touch-capable I/O - deployed in battery-powered sensor nodes and vehicle body electronics requiring ultra-low-power operation.

For engineers reviewing the MSP430G2453IPW8RQ1 datasheet, MSP430G2453IPW8RQ1 pinout, MSP430G2453IPW8RQ1 application, or MSP430G2453IPW8RQ1 equivalent, this page delivers verified technical context, exact TSSOP-28 pin mapping, automotive-grade low-power mode timing, calibrated DCO frequency accuracy, and validated alternative options for functional migration.

Technical Context

The MSP430G2453IPW8RQ1 implements a 16-bit CPU with seven addressing modes, constant generators, and register-based execution (62.5-ns instruction cycle). Its clock system integrates a digitally controlled oscillator (DCO) calibrated to ±3% over temperature and voltage, plus support for 32-kHz crystal (XT1), internal VLO, and external digital clock sources.

Peripherals include two independent 16-bit Timer_A modules (each with three capture/compare registers), a comparator_A+ with eight input channels, and dual USCI modules supporting UART (with LIN auto-baud), IrDA, SPI, and I²C - all accessible via 24 GPIO pins with Schmitt-trigger inputs, programmable pullup/pulldown, and capacitive-touch sensing capability.

Key Specifications

Pinout & Package

Package: TSSOP-28 (PW), 9.7 mm × 4.4 mm body size, lead pitch 0.65 mm, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2453IPW8RQ1, the MSP430G2553IPW8RQ1 offers double flash capacity with identical timing and I/O, while the MSP430FR2476TPWR trades analog comparator functionality for FRAM's write speed and endurance - making it unsuitable for slope ADC or comparator-driven wake-up designs.

Availability

MSP430G2453IPW8RQ1 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, battery-powered instrumentation, and capacitive-touch human-machine interfaces requiring stable component supply across extended product lifecycles.

Supply support for MSP430G2453IPW8RQ1 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 deep automotive qualification expertise and ISO/TS 16949-certified manufacturing.

The MSP430G2x53-Q1 product line targets cost-sensitive, ultra-low-power automotive applications - including body control, tire pressure monitoring, and smart sensors - where AEC-Q100 compliance, sub-1 µA standby current, and integrated analog peripherals reduce system BOM count.

FAQ

What is the maximum operating frequency of the MSP430G2453IPW8RQ1 DCO?

The MSP430G2453IPW8RQ1 features a factory-calibrated digitally controlled oscillator (DCO) with selectable frequencies up to 16 MHz. Its accuracy is ±3% over the full automotive temperature range (–40°C to +105°C) and supply voltage (1.8 V to 3.6 V), enabling reliable UART and timer operation without external crystals in many applications. The MSP430G2453IPW8RQ1 supports four calibrated DCO frequency bands, each tunable via RSEL and DCO bits.

Does the MSP430G2453IPW8RQ1 support capacitive touch sensing on all I/O pins?

Yes, the MSP430G2453IPW8RQ1 supports capacitive touch sensing on up to 24 I/O pins - all P1.x, P2.x, and P3.x pins in the 28-pin TSSOP package. It uses the built-in comparator_A+ and Timer_A modules to implement charge-transfer (CTSIO) sensing without external components. The MSP430G2453IPW8RQ1 datasheet confirms this capability in Section 3 and Table 1, and the MSP430x2xx Family User's Guide (SLAU144) details implementation methods.

How does the MSP430G2453IPW8RQ1 handle brownout conditions?

The MSP430G2453IPW8RQ1 integrates a programmable brownout detector (BOR) that monitors DVCC and triggers a power-on reset (POR) or brownout reset (BOR) when voltage falls below a threshold - typically 1.7 V (min) with hysteresis. This prevents erratic code execution during power ramp-up or sag. The BOR flag (BORIFG) is accessible in SFR IFG2, and the MSP430G2453IPW8RQ1 can be configured to assert reset or generate an interrupt, ensuring deterministic behavior under low-voltage stress.

Can the MSP430G2453IPW8RQ1 operate without an external crystal?

Yes, the MSP430G2453IPW8RQ1 operates fully without an external crystal. Its internal digitally controlled oscillator (DCO) provides clock sources up to 16 MHz, and the very-low-power oscillator (VLO) supplies a stable ~12 kHz clock for LPM3 operation. The MSP430G2453IPW8RQ1 also supports external digital clock input or 32-kHz crystal (XT1) - but XT1 is optional, not required. All low-power modes and peripherals function using DCO or VLO alone.

What debug interface does the MSP430G2453IPW8RQ1 use?

The MSP430G2453IPW8RQ1 uses the two-wire Spy-Bi-Wire (SBW) interface for on-chip emulation and programming - accessed via pins RST/NMI/SBWTDIO (pin 24) and TEST/SBWTCK (pin 25). This replaces standard JTAG, reducing PCB footprint and connector count. The MSP430G2453IPW8RQ1 supports full-speed debugging, flash erase/write, and breakpoint setting through SBW, and is compatible with TI's MSP-FET and LaunchPad development tools.