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Texas Instruments MSP430G2353IRHB32T
- Part No.:
- MSP430G2353IRHB32T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430G2353IRHB32T.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:987
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Product details
Overview
MSP430G2353IRHB32T from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 4 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit Timer_A modules with three capture/compare registers each, USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and up to 24 capacitive-touch-enabled I/O pins. It targets battery-powered sensor nodes and portable measurement systems requiring fast wake-up and precise analog acquisition.
For engineers reviewing the MSP430G2353IRHB32T datasheet, MSP430G2353IRHB32T pinout, MSP430G2353IRHB32T application, or MSP430G2353IRHB32T equivalent, key selection criteria include its 4 KB flash / 256 B RAM memory configuration, QFN-32 package with AVCC/AVSS separation, ADC10 channel count (8 inputs), low-power operating modes (LPM0–LPM4), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2353IRHB32T implements a 16-bit CPU with constant generators and seven addressing modes, executing register-to-register operations in one CPU clock cycle. Its clock system integrates a digitally controlled oscillator (DCO) calibrated for 1/8/12/16 MHz operation, plus ACLK from internal LF oscillator or external 32-kHz crystal.
Peripherals are memory-mapped and accessible via all instructions. The ADC10 supports sample-and-hold, internal VREF+/VREF−, and autoscan across eight channels; Comparator_A+ provides eight input channels with CAOUT output and slope A/D capability. Interrupt handling uses 16-vector priority-based architecture with maskable and non-maskable sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables high code efficiency and deterministic 62.5-ns instruction cycle at 16 MHz |
| Flash / RAM | 4 KB flash program memory and 256 B RAM; sufficient for compact sensor firmware with real-time data processing and local storage |
| ADC10 Resolution | 10-bit SAR ADC with 200-ksps sampling rate, internal reference, and autoscan across 8 analog inputs; supports precision analog signal digitization without external reference IC |
| Power Modes | Five software-selectable low-power modes (LPM0–LPM4); standby current 0.5 µA and off-mode (RAM retention) current 0.1 µA extend battery life in intermittent-sensing applications |
| USCI Peripherals | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C); enables dual-protocol serial communication for host interfacing and sensor bus integration |
| Timer Resources | Two 16-bit Timer_A modules (TA0, TA1), each with three capture/compare registers; supports PWM generation, input capture, interval timing, and quadrature decoding |
| Supply Voltage | 1.8 V to 3.6 V operation; compatible with single-cell Li-ion, Li-polymer, or dual-AA alkaline power sources without regulation overhead |
Pinout & Package
Package: 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (recommended connection to DVSS). Pinout validated per TI SLAS735J Rev. May 2013, Figure "Device Pinout, MSP430G2x13 and MSP430G2x53, 32-Pin Devices, QFN".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK/A0/CA0 | Multi-function I/O | Primary ADC input A0, comparator input CA0, timer clock source, and ACLK output - enables synchronized analog acquisition and low-frequency timing |
| P1.3/ADC10CLK/CAOUT/VREF−/VEREF−/A3/CA3 | Analog terminal | Dedicated ADC negative reference (VREF−), comparator output (CAOUT), and ADC input A3 - supports ratiometric measurements and analog threshold detection |
| P1.4/SMCLK/CA4/TCK/VREF+/VEREF+/A4/UCB0STE/UCA0CLK | Multi-function I/O | Provides SMCLK output, JTAG TCK, ADC positive reference (VREF+), and USCI clock - simplifies clock distribution and reference management |
| P1.6/TA0.1/CA6/TDI/TCLK/UCB0SOMI/UCB0SCL/A6 | Multi-function I/O | Supports I²C SCL, SPI MISO, JTAG TDI, and ADC input A6 - consolidates communication, debug, and analog functions on one pin |
| RST/NMI/SBWTDIO | Debug & reset | Spy-Bi-Wire bidirectional data line and non-maskable interrupt input - enables in-system programming and debugging with only two wires |
| XIN/P2.6/TA0.1 | Oscillator input | Accepts 32.768-kHz crystal or external clock for ACLK; also serves as Timer_A0 compare output - reduces pin count for timekeeping and PWM |
| AVCC / AVSS | Analog supply | Dedicated analog power (29) and ground (27) pins - isolate noise-sensitive ADC and comparator circuitry from digital switching transients |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power standby mode | 0.5 µA current draw enables multi-year operation on coin-cell batteries in wireless sensor endpoints |
| Sub-1 µs wake-up from LPM3 | Enables rapid response to external interrupts (e.g., motion or voltage threshold) while maintaining µA-level sleep current |
| Capacitive-touch I/O support | All P1.x and P2.x pins feature programmable pin oscillators - eliminates need for external touch controller in human-interface designs |
| Built-in brownout detector | Monitors DVCC and triggers reset below safe operating voltage - prevents erratic behavior during battery depletion or supply sag |
| On-chip emulation logic | Integrated Spy-Bi-Wire interface allows full-speed debugging and flash programming using TI MSP-FET or LaunchPad - no external JTAG adapter required |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data every 30 seconds, then transmitting via UART to a gateway. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, data processing, low-power scheduling, and serial transmission timing. Use Value: 4 KB flash stores firmware with sensor fusion algorithms; 256 B RAM buffers sampled data; LPM4 (0.1 µA) extends 10-year battery life with infrequent wake-ups. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, performing real-time SpO₂ calculation, and displaying results on an LCD. IC Role / Device Role / Timing Role: Mixed-signal controller performing synchronized dual-channel ADC sampling, digital filtering, and display refresh timing. Use Value: ADC10's 200-ksps autoscan captures fast photoplethysmogram waveforms; internal VREF ensures stable conversion accuracy across battery voltage range. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted HMI panel monitoring relay status, reading potentiometer inputs, and driving LED indicators via GPIO. IC Role / Device Role / Timing Role: Real-time I/O manager with interrupt-driven button debouncing, analog trim calibration, and LED PWM dimming control. Use Value: Two Timer_A modules generate independent 1 kHz and 200 Hz PWM outputs for LEDs and buzzers; 24-capacitive-touch I/O supports overlay button implementation. | Use Scenario: Solar-powered soil moisture sensor harvesting microwatts from a small PV cell, waking periodically to measure and transmit via sub-GHz RF. IC Role / Device Role / Timing Role: Ultra-low-power system orchestrator managing energy budgeting, ADC acquisition, and RF module enable timing. Use Value: 0.1 µA LPM4 current matches typical energy harvesting output; integrated comparator replaces external window comparator for battery voltage monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2453IRHB32 | 8 KB flash, 512 B RAM, same peripherals and pinout | Supports larger firmware (e.g., BLE stack, advanced filtering), higher RAM buffer depth for streaming data | Select when firmware size exceeds 4 KB or real-time buffering requires >256 B RAM |
| MSP430G2253IRHB32 | 2 KB flash, 256 B RAM, no ADC10 (only comparator) | Lacks 10-bit ADC; suitable for pure digital control or comparator-based threshold detection only | Select for cost-sensitive, ADC-free applications where analog sensing is handled externally |
Compared with MSP430G2453IRHB32, the MSP430G2353IRHB32T offers reduced memory at lower cost but retains identical peripheral set and power profile; versus MSP430G2253IRHB32, it adds essential ADC10 functionality for analog signal digitization without external components.
Availability
MSP430G2353IRHB32T is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply, long-term manufacturability, and consistent parametric performance across temperature and voltage ranges.
Supply support for MSP430G2353IRHB32T 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 energy efficiency, reliability, and system-level integration.
The MSP430G2xx family was designed specifically for ultra-low-power portable and battery-operated applications, combining mixed-signal capability, intelligent power management, and robust development tool support to minimize total system power and bill-of-materials cost.
FAQ
What is the maximum ADC10 sampling rate supported by the MSP430G2353IRHB32T?
The MSP430G2353IRHB32T supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) with internal reference and autoscan enabled. This rate is achievable when ADC10CLK is sourced from the DCO at ≥5 MHz and conversion timing parameters (ADC10SHTx, ADC10DIV) are configured for minimum sample-and-hold duration. The device maintains 10-bit resolution across this full rate range.
Does the MSP430G2353IRHB32T support hardware UART auto-baudrate detection?
Yes, the MSP430G2353IRHB32T's USCI_A0 module supports enhanced UART auto-baudrate detection (LIN-compliant), allowing automatic synchronization to incoming serial frames without prior knowledge of baud rate. This feature is implemented in hardware and requires no CPU intervention during detection, reducing firmware complexity in multi-node bus systems.
How many I/O pins on the MSP430G2353IRHB32T support capacitive touch sensing?
The MSP430G2353IRHB32T supports capacitive touch sensing on up to 24 I/O pins - specifically all P1.x (8 pins), P2.x (8 pins), and P3.x (8 pins) - using its integrated pin oscillator capability. Each pin can be individually enabled for touch operation, and the comparator_A+ module provides the required signal conditioning and threshold comparison.
What debug interface does the MSP430G2353IRHB32T use, and how many pins are required?
The MSP430G2353IRHB32T uses the Spy-Bi-Wire (SBW) debug interface, which requires only two pins: RST/NMI/SBWTDIO (pin 23) and TEST/SBWTCK (pin 24). This 2-wire interface supports full-speed debugging, flash programming, and real-time memory access, eliminating the need for a 4-pin JTAG header and reducing PCB footprint.
Is the MSP430G2353IRHB32T pin-compatible with other devices in the MSP430G2x53 family?
Yes, the MSP430G2353IRHB32T is pin-compatible with all other RHB32-packaged MSP430G2x53 variants (e.g., MSP430G2453IRHB32, MSP430G2553IRHB32) and shares identical pin functions, electrical characteristics, and package dimensions. Firmware and hardware designs can be scaled across this family by reprogramming flash and adjusting memory-dependent initialization routines.
MSP430G2353IRHB32T 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:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 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:
MSP430G2353IRHB32T FAQ
1.How can I place an order for MSP430G2353IRHB32T through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2353IRHB32T 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 MSP430G2353IRHB32T reliable?
The price and inventory of MSP430G2353IRHB32T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2353IRHB32T is usually 5 days.
3.What payment methods are accepted for MSP430G2353IRHB32T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2353IRHB32T transactions.
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4.How is shipping managed for MSP430G2353IRHB32T?
MSP430G2353IRHB32T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2353IRHB32T 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 MSP430G2353IRHB32T?
For technical support, including MSP430G2353IRHB32T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2353IRHB32T requirements.
6.How does Aetrix verify that MSP430G2353IRHB32T is sourced from the original manufacturer or authorized distributors?
All MSP430G2353IRHB32T 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 MSP430G2353IRHB32T meets industry standards.
7.What is the process for return or replacement of MSP430G2353IRHB32T?
All MSP430G2353IRHB32T units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2353IRHB32T, 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 MSP430G2353IRHB32T part is unused and in its original packaging.
Return procedure for MSP430G2353IRHB32T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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