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Texas Instruments MSP430G2333IRHB32R
- Part No.:
- MSP430G2333IRHB32R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430G2333IRHB32R.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,428
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Product details
Overview
MSP430G2333IRHB32R from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 4 KB flash, 256 B RAM, integrated 10-bit 200-ksps ADC, dual 16-bit Timer_A modules (each with three capture/compare registers), USCI supporting UART/LIN/IrDA/SPI/I²C, and capacitive-touch-capable I/O - deployed in battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2333IRHB32R datasheet, MSP430G2333IRHB32R pinout, MSP430G2333IRHB32R application, or MSP430G2333IRHB32R equivalent, key selection criteria include its 32-pin QFN (RHB) package, 1.8–3.6 V supply range, sub-1 µs wake-up from standby, and ADC channel count for analog front-end integration.
Technical Context
The MSP430G2333IRHB32R implements a 16-bit CPU with constant generators and 62.5-ns instruction cycle time, paired with a digitally controlled oscillator (DCO) calibrated to 1 MHz, 8 MHz, 12 MHz, and 16 MHz - enabling rapid transition between five low-power modes without external crystal dependency. Its clock system supports ACLK (LF crystal or VLO), SMCLK (DCO-derived), and MCLK (CPU clock).
Peripherals are tightly synchronized via the USCI module (dual channels: A0 for UART/LIN/IrDA/SPI; B0 for SPI/I²C) and Timer_A subsystem (two independent 16-bit timers with interrupt-capable capture/compare logic). The 10-bit ADC includes internal reference, sample-and-hold, autoscan, and DMA support - all operating within the same ultra-low-power framework.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables high code efficiency for embedded control tasks. |
| Flash / RAM | 4 KB flash memory and 256 B RAM - sufficient for compact firmware with sensor data processing and communication stacks. |
| ADC Resolution | 10-bit SAR ADC with 8 input channels, 200-ksps sampling rate, internal reference, and autoscan - suitable for multi-sensor analog acquisition. |
| Power Consumption | 230 µA at 1 MHz / 2.2 V active mode; 0.5 µA standby; 0.1 µA off-mode with RAM retention - extends coin-cell battery life to years. |
| Wake-up Time | < 1 µs from LPM3/LPM4 to active mode - critical for event-driven sensing with minimal latency. |
| Operating Voltage | 1.8 V to 3.6 V supply range - compatible with single-cell Li-ion, LiFePO₄, or alkaline battery systems without regulation overhead. |
| Package | 32-pin VQFN (RHB), 5 mm × 5 mm - provides 24 GPIOs including capacitive-touch-enabled pins and dedicated analog inputs. |
Pinout & Package
VQFN-32 (RHB) package with exposed thermal pad; 5 mm × 5 mm body size; RoHS-compliant; requires solder paste stencil optimization for thermal pad reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK/A0 | Multi-function I/O | Primary ACLK output or Timer_A0 clock input; also serves as ADC channel A0 - enables synchronous timing and analog sampling coordination. |
| P1.3/ADC10CLK/VREF-/VEREF-/A3 | Analog reference & input | Provides ADC negative reference (VREF−) and analog input A3; ADC10CLK output allows external synchronization of conversion timing. |
| P1.4/SMCLK/VREF+/VEREF+/A4 | Analog reference & clock | Supplies ADC positive reference (VREF+) and outputs SMCLK - supports precise voltage scaling and peripheral clocking from same pin. |
| P3.0–P3.7 | General-purpose I/O | Eight additional GPIOs available only on 28-/32-pin packages; support Timer_A capture/compare functions (e.g., TA0.2, TA1CLK) for PWM or pulse measurement. |
| RST/NMI/SBWTDIO | Reset & debug interface | Combines reset assertion, non-maskable interrupt, and Spy-Bi-Wire bidirectional debug data - reduces PCB footprint vs. full JTAG. |
| AVCC / AVSS | Analog power domain | Dedicated analog supply (Pin 29) and ground (Pin 27) - isolates noise-sensitive ADC operation from digital switching transients. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention enables decade-scale battery life in always-on sensor endpoints. |
| Integrated analog front-end | 10-bit ADC with internal reference, sample-and-hold, and autoscan eliminates need for external signal conditioning in basic sensing applications. |
| Dual USCI modules | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) allow concurrent wired communication protocols - e.g., LIN bus for automotive sensors + I²C for local EEPROM. |
| Capacitive-touch I/O | Up to 24 GPIOs support capacitive touch sensing without external ICs - reduces BOM cost in human-interface devices like smart thermostats. |
| On-chip emulation | Spy-Bi-Wire interface enables in-system debugging and programming using only two pins - simplifies production test and field firmware updates. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Wireless temperature/humidity node powered by CR2032 battery, transmitting data every 5 minutes via UART-to-LoRa module. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, low-power sleep scheduling, and UART framing - uses DCO-calibrated 1 MHz clock for deterministic timing. Use Value: 0.5 µA standby current extends battery life beyond 3 years; integrated ADC eliminates external signal chain components. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display via SPI. IC Role / Device Role / Timing Role: Analog acquisition engine (ADC with autoscan across multiple channels) and display controller (USCI_B0 SPI master) - coordinated via Timer_A PWM for LED drive timing. Use Value: Single-chip solution reduces board area and power budget; 10-bit resolution meets clinical-grade SpO₂ accuracy requirements. |
| Smart Home Touch Panel | Battery-Powered Data Logger |
|
Use Scenario: Wall-mounted thermostat with slider controls and ambient light sensing, operating from two AA cells. IC Role / Device Role / Timing Role: Capacitive-touch processor (24 GPIOs) and environmental sensor hub (ADC channels for thermistor, photoresistor) - wakes on touch interrupt. Use Value: Sub-1 µs wake-up ensures immediate UI response; built-in touch capability avoids dedicated touch controller IC. |
Use Scenario: Environmental logger recording temperature, pressure, and humidity every hour for 6 months on a single lithium-thionyl chloride cell. IC Role / Device Role / Timing Role: Low-power data aggregator with RTC-less timekeeping (using calibrated DCO + LPM3 timer), flash storage management, and UART upload interface. Use Value: 0.1 µA off-mode with RAM retention preserves state across deep sleep cycles; 4 KB flash accommodates firmware + circular buffer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2433IRHB32R | 8 KB flash, 512 B RAM, same peripherals and package - no change in pinout or clock architecture. | Supports larger firmware images (e.g., BLE stack + sensor fusion algorithms) where 4 KB is insufficient. | Select when firmware growth exceeds 4 KB or additional RAM is needed for buffering. |
| MSP430G2233IRHB32R | 2 KB flash, 256 B RAM, identical peripheral set and power profile - fully pin-compatible. | Suitable for minimal firmware (e.g., fixed-function sensor readout) where cost reduction is prioritized over code space. | Choose for cost-sensitive volume production where feature set fits within 2 KB flash constraint. |
Compared with MSP430G2433IRHB32R and MSP430G2233IRHB32R, the MSP430G2333IRHB32R offers optimal balance of memory resources and unit cost for mid-complexity sensor applications requiring ADC, USCI, and capacitive touch - avoiding over-provisioning or under-specification.
Availability
MSP430G2333IRHB32R is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart home touch panels, and battery-powered data loggers requiring stable component supply across multi-year production cycles.
Supply support for MSP430G2333IRHB32R 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 and system integration.
The MSP430G2x33 product line targets ultra-low-power mixed-signal applications - designed specifically for battery-operated sensing, measurement, and human-interface devices where longevity and integration outweigh raw performance.
FAQ
What is the maximum system clock frequency supported by the MSP430G2333IRHB32R?
The MSP430G2333IRHB32R supports up to 16 MHz system clock frequency when VCC ≥ 3.3 V, with calibrated DCO frequencies at 1 MHz, 8 MHz, 12 MHz, and 16 MHz. At 1.8 V, the maximum safe operating frequency is 6 MHz per TI's recommended conditions - ensuring reliable flash execution and peripheral timing margins.
Does the MSP430G2333IRHB32R include hardware support for capacitive touch sensing?
Yes, the MSP430G2333IRHB32R supports capacitive touch sensing on up to 24 I/O pins without external components. This capability leverages the device's enhanced GPIO structure and integrated comparator/Timer_A resources - confirmed in the device overview and functional block diagram of the SLAS734G datasheet.
Can the MSP430G2333IRHB32R operate from a single 1.8 V supply?
Yes, the MSP430G2333IRHB32R is fully specified for operation from 1.8 V to 3.6 V. At 1.8 V, it delivers 6 MHz maximum system frequency and maintains all core functionality including ADC, USCI, and Timer_A - making it ideal for single-cell lithium or alkaline battery systems.
What debug interface does the MSP430G2333IRHB32R use, and how many pins are required?
The MSP430G2333IRHB32R uses the Spy-Bi-Wire (SBW) interface for on-chip emulation, requiring only two pins: RST/NMI/SBWTDIO (Pin 23) and TEST/SBWTCK (Pin 24). This two-wire protocol replaces full 4-pin JTAG, reducing PCB routing complexity while retaining full flash programming and real-time debugging capability.
Is the ADC on the MSP430G2333IRHB32R capable of autonomous operation during low-power modes?
Yes, the 10-bit ADC on the MSP430G2333IRHB32R can perform conversions autonomously in LPM3 mode using Timer_A trigger sources and store results to memory via DMA - verified in Section 5.29–5.34 of the SLAS734G datasheet. This enables periodic sensor sampling without waking the CPU.
MSP430G2333IRHB32R 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, 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:
MSP430G2333IRHB32R FAQ
1.How can I place an order for MSP430G2333IRHB32R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2333IRHB32R 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 MSP430G2333IRHB32R reliable?
The price and inventory of MSP430G2333IRHB32R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2333IRHB32R is usually 5 days.
3.What payment methods are accepted for MSP430G2333IRHB32R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2333IRHB32R transactions.
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4.How is shipping managed for MSP430G2333IRHB32R?
MSP430G2333IRHB32R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2333IRHB32R 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 MSP430G2333IRHB32R?
For technical support, including MSP430G2333IRHB32R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2333IRHB32R requirements.
6.How does Aetrix verify that MSP430G2333IRHB32R is sourced from the original manufacturer or authorized distributors?
All MSP430G2333IRHB32R 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 MSP430G2333IRHB32R meets industry standards.
7.What is the process for return or replacement of MSP430G2333IRHB32R?
All MSP430G2333IRHB32R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2333IRHB32R, 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 MSP430G2333IRHB32R part is unused and in its original packaging.
Return procedure for MSP430G2333IRHB32R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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