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Texas Instruments MSP430F2232IRHAT
- Part No.:
- MSP430F2232IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2232IRHAT.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:542
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Product details
Overview
MSP430F2232IRHAT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 8KB Flash, 512B RAM, 10-bit ADC (12-channel), dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 serial interfaces, and brownout detection - deployed in battery-powered sensor nodes and portable measurement systems requiring sub-1µs wake-up and <0.1µA off-mode retention.
For engineers reviewing the MSP430F2232IRHAT datasheet, MSP430F2232IRHAT pinout, MSP430F2232IRHAT application, or MSP430F2232IRHAT equivalent, key selection criteria include its 40-pin QFN (RHA) package, 1.8–3.6 V supply range, integrated DCO with ±1% calibration, Spy-Bi-Wire debug interface, and absence of on-chip op amps (distinguishing it from MSP430F22x4 variants).
Technical Context
The MSP430F2232IRHAT implements a 16-bit CPU with seven addressing modes and constant generators for optimized code density. Its basic clock system supports internal DCO (up to 16 MHz, four factory-calibrated frequencies), 32-kHz crystal (ACLK), HF crystal/resonator (up to 16 MHz), and external digital clock sources.
It features two independent 16-bit timers with capture/compare registers, a 10-bit ADC10 with internal reference, sample-and-hold, autoscan, and data transfer controller (DTC), plus USCI modules supporting UART/LIN/IrDA/SPI/I²C - all operating under five software-selectable low-power modes including LPM4 (0.1 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; register-based execution enables high code efficiency in memory-constrained embedded firmware. |
| Flash / RAM | 8KB + 256B Flash program memory and 512B RAM - sufficient for compact sensor firmware with bootloader and calibration tables. |
| ADC Resolution | 10-bit SAR ADC with 12 input channels, internal reference, and DTC - supports autonomous analog acquisition without CPU intervention. |
| Power Modes | Active mode: 270 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA - enables multi-year battery life in intermittent-sampling applications. |
| Wake-up Time | <1 µs from standby to active mode - critical for event-triggered sensing where latency must be minimized. |
| Package | 40-pin QFN (RHA), 6 mm × 6 mm, 0.5 mm pitch - surface-mount compatible with space-constrained PCB layouts. |
| Clock Sources | Internal DCO (calibrated to ±1%), 32-kHz LF crystal, up to 16-MHz HF crystal/resonator, or external digital clock - eliminates need for external oscillator in many designs. |
Pinout & Package
Package: 40-pin QFN (RHA), 6 mm × 6 mm, exposed thermal pad (to be connected to DVSS). Pinout validated per TI SLAS504G Rev. August 2012, Table 3 (MSP430F22x2) and Figure 4 (RHA pin diagram).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / TEST/SBWTCK | Spy-Bi-Wire test clock input | Enables single-wire programming/debug via MSP-FET430UIF; no JTAG header required. |
| 5 / XIN/P2.6 | HF crystal or resonator input | Accepts 32 kHz to 16 MHz external timing source; used for precise system clock or RTC. |
| 6 / RST/NMI/SBWTDIO | Reset/NMI input & SBW data I/O | Combines reset, non-maskable interrupt, and bidirectional debug data - simplifies board-level reset circuitry. |
| 29 / P2.3/TA1/A3/VREF−/VeREF− | Analog input / ADC reference negative | Configurable as ADC channel A3 or negative reference; supports differential ADC measurements. |
| 30 / P2.4/TA2/A4/VREF+/VeREF+ | Analog input / ADC reference positive | Configurable as ADC channel A4 or internal/external positive reference; enables flexible analog front-end design. |
| 35 / P1.4/SMCLK/TCK | Sub-main clock output / JTAG TCK | Provides SMCLK for peripheral synchronization or serves as JTAG test clock - dual-use reduces pin count pressure. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with full RAM retention - extends coin-cell battery life beyond 10 years in sleep-dominated applications. |
| Dual 16-bit timers with shadow registers | Timer_A3 and Timer_B3 each provide three capture/compare registers and independent clock domains - supports simultaneous PWM generation, input capture, and interval timing. |
| Integrated USCI peripherals | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) enable direct connectivity to sensors, transceivers, and host processors without external level shifters or protocol converters. |
| On-chip bootstrap loader (BSL) | Factory-programmed ROM-based BSL allows field firmware updates via UART or SPI - eliminates need for dedicated programmer in production or service. |
| Digital-controlled oscillator (DCO) | Four factory-trimmed DCO frequencies (±1%) enable rapid clock startup and stable operation without external crystal - reduces BOM cost and board area. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF link at 15-minute intervals. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, RF interface timing, low-power state transitions, and BSL-based OTA updates. Use Value: Sub-1µs wake-up and 0.1µA off-mode current enable >5-year CR2032 battery life; integrated USCI_A0 simplifies UART-to-RF IC interfacing. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Signal acquisition controller performing synchronized ADC sampling, LED drive timing, and display refresh via SPI. Use Value: 12-channel ADC with autoscan and DTC autonomously acquires dual-wavelength photodiode data; 16-bit timers generate precise LED pulsing waveforms. |
| Industrial Data Logger | Smart Meter Sensor Interface |
Use Scenario: DIN-rail mounted logger recording voltage/current/temperature every 30 seconds using isolated analog inputs. IC Role / Device Role / Timing Role: Isolated analog front-end coordinator handling ADC configuration, timestamping via Timer_B, and SD card SPI writes. Use Value: Internal 1.5V reference and VREF+/VREF− pins support ratiometric measurements across multiple isolated channels; LPM3 mode (0.3µA) ensures long-term logging stability. | Use Scenario: Electricity meter auxiliary board measuring neutral current and tamper detection signals. IC Role / Device Role / Timing Role: Secondary MCU monitoring auxiliary analog inputs and communicating status to main meter SoC via I²C. Use Value: USCI_B0 supports robust I²C communication with configurable clock stretching; brownout detector prevents corrupted EEPROM writes during grid sags. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2252IRHAT | 16KB Flash, 512B RAM, same peripherals and package - no op amps. | Supports larger firmware images (e.g., cryptographic stacks, extended sensor fusion algorithms). | Select when firmware size exceeds 8KB but op-amp functionality is unnecessary. |
| MSP430F2272IRHAT | 32KB Flash, 1KB RAM, identical peripheral set and power profile - no op amps. | Enables complex real-time processing (e.g., FFT-based vibration analysis) with local storage of raw sensor data. | Choose for applications requiring >16KB code space while retaining identical low-power behavior and pin compatibility. |
Compared with MSP430F2252IRHAT and MSP430F2272IRHAT, the MSP430F2232IRHAT offers optimal cost/power balance for firmware under 8KB; all three share identical RHA pinout, clock architecture, and ultra-low-power modes - enabling scalable design reuse across product tiers.
Availability
MSP430F2232IRHAT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across temperature ranges (–40°C to 85°C).
Supply support for MSP430F2232IRHAT 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 for industrial, automotive, and consumer markets.
The MSP430F2232IRHAT belongs to the MSP430F22x2 ultra-low-power microcontroller family, designed specifically for battery-operated measurement and sensing applications demanding nanowatt-level power consumption and fast wake-up response.
FAQ
What is the maximum operating frequency of the MSP430F2232IRHAT?
The MSP430F2232IRHAT supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) with factory calibration or an external HF crystal/resonator up to 16 MHz. This enables deterministic real-time processing while maintaining ultra-low-power operation in active mode.
Does the MSP430F2232IRHAT include operational amplifiers?
No, the MSP430F2232IRHAT does not include operational amplifiers. It belongs to the MSP430F22x2 series, which omits the two configurable op amps found in the MSP430F22x4 series (e.g., MSP430F2234IRHAT). This distinction is explicitly documented in TI's SLAS504G datasheet feature list and functional block diagrams.
What debug interface does the MSP430F2232IRHAT support?
The MSP430F2232IRHAT supports the Spy-Bi-Wire (SBW) interface using pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This two-wire interface is fully compatible with TI's MSP-FET430UIF debugger and enables full-speed programming, breakpoint debugging, and real-time register inspection without requiring a full 4-wire JTAG header.
How many ADC input channels does the MSP430F2232IRHAT have?
The MSP430F2232IRHAT integrates a 10-bit ADC10 module with 12 analog input channels (A0–A7, A12–A15), confirmed in the "Terminal Functions" table (SLAS504G p.9) and functional block diagram (p.7). Channel mapping includes P2.0–P2.4, P3.6–P3.7, and P4.3–P4.6 - supporting flexible analog signal routing.
Is the MSP430F2232IRHAT pin-compatible with other RHA-packaged MSP430F22x2 devices?
Yes, the MSP430F2232IRHAT is fully pin-compatible with other 40-pin QFN (RHA) variants in the MSP430F22x2 family, including MSP430F2252IRHAT and MSP430F2272IRHAT. All share identical pin functions, electrical characteristics, and package dimensions - enabling hardware reuse across firmware scalability tiers.
MSP430F2232IRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-VFQFN Exposed Pad
- Series:
- MSP430F2xx
- 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, POR, PWM, WDT
- Number of I/O:
- 32
- Program Memory Size:
- 8KB (8K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2232IRHAT FAQ
1.How can I place an order for MSP430F2232IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2232IRHAT 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 MSP430F2232IRHAT reliable?
The price and inventory of MSP430F2232IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2232IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430F2232IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2232IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2232IRHAT?
MSP430F2232IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2232IRHAT 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 MSP430F2232IRHAT?
For technical support, including MSP430F2232IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2232IRHAT requirements.
6.How does Aetrix verify that MSP430F2232IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430F2232IRHAT 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 MSP430F2232IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430F2232IRHAT?
All MSP430F2232IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2232IRHAT, 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 MSP430F2232IRHAT part is unused and in its original packaging.
Return procedure for MSP430F2232IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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