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Texas Instruments MSP430G2453IRHB32T
- Part No.:
- MSP430G2453IRHB32T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430G2453IRHB32T.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:439
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Product details
Overview
MSP430G2453IRHB32T from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 8 KB flash, 512 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit Timer_A modules (each with three capture/compare registers), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and an on-chip analog comparator. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2453IRHB32T datasheet, MSP430G2453IRHB32T pinout, MSP430G2453IRHB32T application, or MSP430G2453IRHB32T equivalent, key selection criteria include its QFN-32 package, 8-channel ADC input capability, Spy-Bi-Wire debug interface, five low-power modes (including 0.1 µA off-mode with RAM retention), and capacitive-touch-enabled I/O support up to 24 pins.
Technical Context
The MSP430G2453IRHB32T integrates a digitally controlled oscillator (DCO) calibrated for 1 MHz, 8 MHz, 12 MHz, and 16 MHz operation, enabling sub-1 µs wake-up from LPM4. Its clock system supports ACLK (from 32-kHz crystal or internal LF oscillator), MCLK (CPU clock), and SMCLK (peripheral clock), all configurable via the basic clock module.
Peripherals are memory-mapped and accessible via full 16-bit instruction set; interrupt handling uses fixed vector addresses in upper flash (0xFFC0–0xFFFF). The device implements port P1/P2/P3 with individually configurable pullup/pulldown resistors, edge-selectable interrupts on P1/P2, and capacitive-touch oscillator enable per pin - all managed through dedicated SFRs without CPU overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; register-based execution enables deterministic timing for real-time control loops. |
| Flash / RAM | 8 KB flash (main memory) + 256 B information memory; 512 B RAM - sufficient for firmware with ADC data buffering and communication stacks. |
| ADC10 | 10-bit, 200-ksps SAR ADC with internal 1.5 V/2.5 V reference, sample-and-hold, autoscan across 8 channels - supports continuous sensor monitoring without CPU intervention. |
| Power Modes | Active mode: 230 µA @ 1 MHz, 2.2 V; LPM4 (RAM retention): 0.1 µA - enables multi-year operation on coin-cell batteries in intermittent-sensing applications. |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) - allows simultaneous wired communication with host MCU (UART) and local sensors (I²C/SPI). |
| Timer Resources | Two 16-bit Timer_A modules (TA0, TA1), each with three capture/compare registers - supports PWM generation, input capture for pulse-width measurement, and interval timing for sensor sampling triggers. |
| Supply Range | 1.8 V to 3.6 V - compatible with single Li-ion, two alkaline, or regulated 3.3 V rails; brownout detector ensures reliable reset during voltage sag. |
Pinout & Package
Package: 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–7, 9–18, 20–22, 27–31 | General-purpose I/O (P1.x, P2.x, P3.x) | Configurable as digital input/output, analog input (ADC10/A0–A7), timer capture/compare (TA0/TA1), USCI signals (UCA0RXD/UCA0TXD/UCB0SOMI/UCB0SIMO), or comparator inputs (CA0–CA7); P1/P2 support edge-triggered interrupts. |
| 8, 32 | NC | No internal connection; must be left unconnected or tied to ground per layout guidelines. |
| 19, 23–26, 28–29 | Power & Control | DVCC/DVSS (digital supply/ground), AVCC/AVSS (analog supply/ground), RST/NMI/SBWTDIO (reset/non-maskable interrupt/Spy-Bi-Wire data), TEST/SBWTCK (debug clock), XIN/XOUT (crystal oscillator interface). |
| QFN Pad | Thermal & Electrical Ground | Exposed pad; must be soldered to PCB ground plane for thermal dissipation and EMI reduction - not electrically isolated. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA LPM4 with RAM retention enables >10-year battery life in wake-on-event sensor nodes using coin cells. |
| Integrated analog subsystem | 8-channel 10-bit ADC with internal reference and autoscan eliminates need for external ADC and reference IC in compact designs. |
| Spy-Bi-Wire debug interface | 2-pin (SBWTDIO/SBWTCK) in-system programming and debugging reduces test point count and simplifies production programming. |
| Capacitive-touch I/O | Individual pin oscillator enable on all P1/P2 pins allows implementation of up to 24 self-capacitive touch buttons without external components. |
| USCI dual-communication capability | Independent UART (USCI_A0) and I²C/SPI (USCI_B0) permit concurrent host communication and peripheral sensor interfacing. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 1-minute intervals, transmitting via UART to a gateway. IC Role / Device Role / Timing Role: Central controller executing ADC sampling, data processing, and UART transmission; uses LPM3 between samples to minimize power. Use Value: 0.5 µA standby current and integrated 10-bit ADC reduce BOM cost and extend battery life beyond 5 years on CR2032. |
Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals, performing analog comparison and digital filtering before Bluetooth transmission. IC Role / Device Role / Timing Role: Signal acquisition and preprocessing unit; comparator triggers ADC conversion on signal threshold crossing; Timer_A generates precise LED drive timing. Use Value: On-chip comparator + ADC + timers eliminate discrete analog front-end components, shrinking PCB area by 35%. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
|
Use Scenario: Local HMI with capacitive touch buttons, LED indicators, and RS-485 communication to PLC over USCI_A0 with LIN protocol support. IC Role / Device Role / Timing Role: Human interface processor managing touch detection, LED PWM dimming, and LIN bus arbitration; uses USCI_A0's auto-baudrate detection for robust startup. Use Value: 24 capacitive-touch I/O pins and LIN-compatible UART simplify design versus adding dedicated touch controller and transceiver ICs. |
Use Scenario: Solar-powered soil moisture sensor waking every 6 hours to measure analog probe voltage, process result, and transmit via SPI to LoRa module. IC Role / Device Role / Timing Role: Energy-aware system manager; LPM4 minimizes quiescent draw; USCI_B0 SPI drives LoRa radio; ADC10 performs ratiometric measurement against internal reference. Use Value: 0.1 µA off-mode current and internal voltage reference ensure reliable operation under variable light conditions without external regulators or references. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IRHB32 | 16 KB flash, 512 B RAM, identical peripherals and pinout - no functional or electrical difference except larger code space. | Preferred when firmware exceeds 8 KB or future feature expansion is anticipated; same PCB layout and debug interface. | Select MSP430G2553IRHB32 if firmware size approaches 7 KB or long-term maintainability requires headroom for updates. |
| MSP430G2413IRHB32 | Omits ADC10 module; retains comparator, timers, USCI, and same flash/RAM - otherwise identical architecture and pinout. | Suitable for purely digital control or comparator-based threshold detection only; cannot perform analog-to-digital conversion. | Choose MSP430G2413IRHB32 only when ADC functionality is unnecessary and BOM cost reduction is critical. |
Compared with MSP430G2453IRHB32T, MSP430G2553IRHB32 offers scalable firmware capacity without hardware change, while MSP430G2413IRHB32 removes ADC overhead for pure digital sensing - both share identical power profiles, packaging, and debug infrastructure.
Availability
MSP430G2453IRHB32T is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430G2453IRHB32T 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power microcontrollers for industrial and portable applications.
The MSP430G2xx family was designed specifically for cost-sensitive, battery-operated measurement and control systems - emphasizing minimal active/standby current, integrated analog peripherals, and rapid wake-up to extend operational lifetime.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2453IRHB32T?
The MSP430G2453IRHB32T supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) when using the internal oscillator as the ADC clock source and operating within specified voltage and temperature ranges. This rate enables high-fidelity capture of fast-changing analog signals such as audio pre-amplifier outputs or motor current waveforms without external oversampling hardware.
Does the MSP430G2453IRHB32T support capacitive touch sensing on all I/O pins?
Yes, the MSP430G2453IRHB32T supports capacitive touch sensing on up to 24 I/O pins - specifically all P1.x and P2.x pins - via built-in pin oscillators that can be enabled individually. No external RC network or dedicated touch controller is required, making it ideal for low-cost human interface applications like touch sliders and proximity wake-up.
Can the MSP430G2453IRHB32T operate from a single 1.8 V supply?
Yes, the MSP430G2453IRHB32T is fully specified to operate across a supply range of 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including ADC operation (with adjusted reference), USCI communication, and timer accuracy - enabling direct compatibility with energy-harvesting circuits and low-voltage battery chemistries.
What debug interface does the MSP430G2453IRHB32T use, and how many pins are required?
The MSP430G2453IRHB32T uses the Spy-Bi-Wire (SBW) interface, requiring only two pins: SBWTDIO (pin 23) and SBWTCK (pin 24). This 2-wire JTAG subset enables full in-system programming, breakpoint debugging, and real-time register inspection - reducing test fixture complexity and PCB routing overhead compared to standard 4-wire JTAG.
Is the MSP430G2453IRHB32T pin-compatible with other devices in the MSP430G2x53 family?
Yes, the MSP430G2453IRHB32T is pin-compatible with all other RHB32-packaged MSP430G2x53 variants (e.g., MSP430G2553IRHB32, MSP430G2353IRHB32), sharing identical pin functions, electrical characteristics, and package dimensions - allowing drop-in replacement for code-size or peripheral-feature upgrades without PCB revision.
MSP430G2453IRHB32T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2453IRHB32T FAQ
1.How can I place an order for MSP430G2453IRHB32T through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2453IRHB32T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430G2453IRHB32T reliable?
The price and inventory of MSP430G2453IRHB32T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2453IRHB32T is usually 5 days.
3.What payment methods are accepted for MSP430G2453IRHB32T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2453IRHB32T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2453IRHB32T?
MSP430G2453IRHB32T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2453IRHB32T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430G2453IRHB32T?
For technical support, including MSP430G2453IRHB32T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2453IRHB32T requirements.
6.How does Aetrix verify that MSP430G2453IRHB32T is sourced from the original manufacturer or authorized distributors?
All MSP430G2453IRHB32T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430G2453IRHB32T meets industry standards.
7.What is the process for return or replacement of MSP430G2453IRHB32T?
All MSP430G2453IRHB32T units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2453IRHB32T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430G2453IRHB32T part is unused and in its original packaging.
Return procedure for MSP430G2453IRHB32T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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