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Texas Instruments MSP430F2232IRHAR
- Part No.:
- MSP430F2232IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2232IRHAR.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,810
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Product details
Overview
MSP430F2232IRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB flash, 512B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, dual 16-bit timers (Timer_A3 and Timer_B3), and a Universal Serial Communication Interface supporting UART/LIN, IrDA, SPI, and I²C - deployed in battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2232IRHAR datasheet, MSP430F2232IRHAR pinout, MSP430F2232IRHAR application, or MSP430F2232IRHAR equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-1 µs wake-up from LPM4, 0.1 µA off-mode current with RAM retention, 32 I/O pins, and QFN-40 package compatibility for space-constrained embedded designs.
Technical Context
The MSP430F2232IRHAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing register-to-register instructions in one CPU cycle. Its basic clock system integrates a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies up to 16 MHz, plus support for 32-kHz crystal, HF crystal (≤16 MHz), resonator, or external digital clock.
It features two independent 16-bit timers with three capture/compare registers each, a USCI module with dual serial interfaces (USCI_A0 for UART/LIN/IrDA/SPI and USCI_B0 for SPI/I²C), and a 10-bit ADC10 with integrated data transfer controller (DTC), sample-and-hold, and 12-channel analog input multiplexing - all optimized for deterministic low-power operation across six software-selectable power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators; enables high code efficiency and single-cycle register operations. |
| Flash / RAM | 8KB + 256B flash memory with security fuse; 512B RAM - sufficient for compact firmware with retained state during standby. |
| Supply Voltage | 1.8 V to 3.6 V - supports direct Li-ion/Li-poly battery operation without regulation, reducing BOM count. |
| Power Consumption | Active mode: 270 µA at 1 MHz/2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA - extends battery life in intermittent-sensing applications. |
| ADC Performance | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and DTC - eliminates need for external DMA or CPU polling during multi-channel acquisition. |
| Timers | Timer_A3 and Timer_B3, each with three capture/compare registers and shadow registers (Timer_B) - supports precise PWM generation, input capture, and time-stamped event logging. |
| Communication | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C) - enables dual-protocol connectivity to sensors, transceivers, and host controllers without external level shifters. |
Pinout & Package
Package: 40-pin QFN (RHA), 6 mm × 6 mm, 0.5 mm pitch, exposed thermal pad (connected to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / TEST/SBWTCK | Spy-Bi-Wire test clock input | Enables programming and debugging via 2-wire interface; no JTAG header required. |
| 2 / DVCC | Digital supply voltage | Primary digital core power rail; decoupling required per TI layout guidelines. |
| 3 / P2.5/ROSC | DCO resistor input / crystal oscillator input | Configures DCO frequency or accepts low-frequency crystal; shared function requires careful pinmux control. |
| 4 / XOUT/P2.7 | Crystal oscillator output | Drives external crystal; must not be used as general I/O unless oscillator disabled and P2SEL.7 cleared. |
| 5 / XIN/P2.6 | Crystal oscillator input | Accepts 32-kHz or HF crystal; supports low-power real-time clock and high-speed system clock simultaneously. |
| 6 / RST/NMI/SBWTDIO | Reset / NMI input / Spy-Bi-Wire data I/O | Single pin serves reset assertion, non-maskable interrupt, and bidirectional debug data - simplifies board routing. |
| 7–10, 11–13, 14–19, 20–26, 27–36, 37–38 / P1.x–P4.x | General-purpose I/O with peripheral multiplexing | 32 total GPIO pins with configurable pull-up/down, interrupt capability, and overlay functions (e.g., TA0, TB1, UCA0TXD, A6). |
| 23 / AVCC, 22 / AVSS | Analog supply and ground | Separate analog power domain isolates noise-sensitive ADC and op-amp circuits from digital switching transients. |
| QFN Pad | Thermal pad | Must be connected to DVSS for thermal dissipation and EMI reduction; solder mask defined per TI package drawing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with full RAM retention enables years of operation on coin-cell batteries in wireless sensor endpoints. |
| Sub-1 µs wake-up from LPM4 | Enables rapid response to external events (e.g., motion, temperature threshold) while maintaining multi-year sleep current. |
| Integrated ADC10 with DTC | Autoscan across 12 analog inputs and automatic data transfer to RAM eliminate CPU intervention during acquisition sequences. |
| Dual 16-bit timer peripherals | Timer_A3 and Timer_B3 provide independent timing resources for concurrent PWM generation, input capture, and real-time scheduling. |
| USCI dual-serial architecture | Simultaneous UART/LIN and I²C/SPI support allows coexistence of legacy sensor buses and modern low-power communication protocols. |
| On-chip emulation module | Embedded Emulation Module (EEM) enables full-speed debugging, breakpoint setting, and flash programming without external hardware debuggers. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data at 10-second intervals, transmitting via UART to BLE module. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, data preprocessing, low-power scheduling, and serial interface handshaking. Use Value: 0.1 µA off-mode current and sub-1 µs wake-up enable >5-year battery life; integrated DTC reduces CPU load during multi-channel reads. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on segmented LCD. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC10 with internal reference, performing real-time filtering, and driving LCD via GPIO. Use Value: 10-bit ADC with sample-and-hold and 200-ksps rate captures fast photoplethysmogram waveforms; 1.8 V operation matches low-voltage display drivers. |
| Smart Utility Meter Interface | Industrial Data Logger |
|
Use Scenario: Sub-metering device interfacing with Hall-effect current sensors and RS-485 modems for energy consumption reporting. IC Role / Device Role / Timing Role: Isolated interface MCU handling analog front-end conditioning, UART-to-RS485 translation, and watchdog-managed firmware updates. Use Value: Dual USCI modules allow simultaneous UART (sensor) and SPI (isolator) operation; brownout detector prevents corruption during line dips. |
Use Scenario: Ruggedized field logger recording vibration, temperature, and humidity every minute onto microSD card using SPI. IC Role / Device Role / Timing Role: Low-power host controller managing timed ADC conversions, FAT32 file writes, and RTC-corrected timestamps. Use Value: LPM3 mode (0.3 µA typical) sustains operation between samples; Timer_B3 provides accurate 60-second interval generation independent of CPU activity. |
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 |
|---|---|---|---|
| MSP430F2252IRHAR | 16KB flash, 512B RAM, same peripherals and pinout - no functional or package difference. | Supports larger firmware images (e.g., OTA update stacks, cryptographic libraries) without changing PCB layout. | Select when firmware size exceeds 8KB or future scalability is required; identical footprint and migration path. |
| MSP430F2272IRHAR | 32KB flash, 1KB RAM, otherwise identical architecture, peripherals, and pinout. | Enables complex sensor fusion algorithms and local data buffering before transmission - suitable for edge analytics. | Choose for applications requiring >16KB code space or extended RAM for real-time buffers; drop-in replacement with higher memory headroom. |
Compared with MSP430F2252IRHAR and MSP430F2272IRHAR, the MSP430F2232IRHAR delivers optimal cost-performance balance for fixed-function sensor nodes where 8KB flash suffices and memory expansion is unnecessary - preserving design simplicity and BOM cost.
Availability
MSP430F2232IRHAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meter interfaces, and industrial data loggers requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MSP430F2232IRHAR 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 microcontroller design and manufacturing.
The MSP430F2232IRHAR belongs to the MSP430F22x2 series - engineered specifically for battery-operated measurement applications demanding nanowatt-level power management, integrated analog signal chain components, and robust real-time control capabilities.
FAQ
What is the maximum operating frequency of the MSP430F2232IRHAR?
The MSP430F2232IRHAR supports a maximum system clock (MCLK) frequency of 16 MHz, achievable via its internally calibrated DCO or external HF crystal up to 16 MHz. The DCO is factory-calibrated to ±1% accuracy across four frequencies (1, 8, 12, and 16 MHz), enabling reliable high-speed operation without external timing components in many applications.
Does the MSP430F2232IRHAR include operational amplifiers?
No, the MSP430F2232IRHAR does not include operational amplifiers. Operational amplifiers are exclusive to the MSP430F22x4 family variants (e.g., MSP430F2234IRHAR). The MSP430F2232IRHAR is part of the F22x2 series and omits the two OA0/OA1 blocks present in F22x4 devices, retaining full ADC, timers, and USCI functionality.
What debug interface does the MSP430F2232IRHAR support?
The MSP430F2232IRHAR supports Spy-Bi-Wire (SBW), a 2-wire debug interface using pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This interface enables full-speed programming, breakpoints, and real-time variable inspection via tools like MSP-FET430UIF, eliminating the need for a 4-wire JTAG header and saving PCB space.
How many analog input channels does the ADC10 support on the MSP430F2232IRHAR?
The ADC10 on the MSP430F2232IRHAR supports 12 analog input channels (A0–A7, A12–A15), accessible via dedicated pins P2.0–P2.4, P3.6–P3.7, and P4.3–P4.6. Channel selection is managed by the ADC10CTL1 register, and autoscan mode allows sequential conversion across any contiguous subset without CPU intervention.
Is the MSP430F2232IRHAR pin-compatible with other packages in the F22x2 family?
Yes, the MSP430F2232IRHAR (40-pin QFN/RHA) shares identical pin functions and signal mapping with the MSP430F2232IDA (38-pin TSSOP/DA) and MSP430F2232IYFF (49-pin BGA/YFF) variants. Pin numbering differs across packages, but terminal functions (e.g., P1.0/TACLK, P2.0/ACLK/A0) are preserved - enabling flexible package selection based on board density and thermal requirements.
MSP430F2232IRHAR 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:
MSP430F2232IRHAR FAQ
1.How can I place an order for MSP430F2232IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2232IRHAR 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 MSP430F2232IRHAR reliable?
The price and inventory of MSP430F2232IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2232IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430F2232IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2232IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2232IRHAR?
MSP430F2232IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2232IRHAR 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 MSP430F2232IRHAR?
For technical support, including MSP430F2232IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2232IRHAR requirements.
6.How does Aetrix verify that MSP430F2232IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430F2232IRHAR 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 MSP430F2232IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430F2232IRHAR?
All MSP430F2232IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2232IRHAR, 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 MSP430F2232IRHAR part is unused and in its original packaging.
Return procedure for MSP430F2232IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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