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Texas Instruments MSP430F2252IRHAR
- Part No.:
- MSP430F2252IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2252IRHAR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,768
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Product details
Overview
MSP430F2252IRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB+256B flash, 512B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two 16-bit timers (Timer_A and Timer_B), and a Universal Serial Communication Interface supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor acquisition and embedded control systems.
For engineers reviewing the MSP430F2252IRHAR datasheet, MSP430F2252IRHAR pinout, MSP430F2252IRHAR application, or MSP430F2252IRHAR equivalent, key selection considerations include its 40-pin QFN (RHA) package, Spy-Bi-Wire debug interface, brownout detector, sub-1-µs wake-up from standby mode, and integrated analog peripherals for compact signal-conditioning designs.
Technical Context
The MSP430F2252IRHAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock system includes a digitally controlled oscillator (DCO) calibrated to ±1% at 1 MHz, plus support for 32-kHz crystal, HF crystal up to 16 MHz, resonator, or external digital clock source.
It integrates dual 16-bit timers with capture/compare registers, USCI modules for asynchronous/synchronous serial communication, and a 10-bit ADC10 with data transfer controller (DTC) and 12-channel analog input multiplexing - all optimized for low-power operation across six software-selectable power modes including LPM4 with 0.1 µA off-mode current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle time and 16 general-purpose registers |
| Flash Memory | 16KB + 256B of on-chip flash with programmable code protection via security fuse |
| RAM Size | 512B of volatile RAM with retention in off mode (0.1 µA) |
| ADC Resolution & Speed | 10-bit SAR ADC with 200-ksps sampling rate, internal reference, sample-and-hold, and autoscan |
| Power Consumption | 270 µA active at 1 MHz/2.2 V; 0.7 µA standby; 0.1 µA off mode with RAM retention |
| Operating Voltage | 1.8 V to 3.6 V supply range - enables direct use with single-cell Li-ion or two-cell alkaline batteries |
| Wake-up Time | Less than 1 µs from standby mode to active mode - critical for duty-cycled sensor nodes |
Pinout & Package
The MSP430F2252IRHAR is housed in a 40-pin QFN package (RHA) with exposed thermal pad, measuring 6 mm × 6 mm × 0.8 mm. Pin assignments are validated per TI SLAS504G Rev. G (August 2012), Table 3 and Figure 4 (MSP430F22x2 Device Pinout, RHA Package).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / TEST/SBWTCK | Spy-Bi-Wire test clock input | Enables programming and debugging using 2-wire interface; no JTAG header required |
| 2 / DVCC | Digital supply voltage | Primary digital core power rail (1.8–3.6 V); decoupling required near pin |
| 3 / P2.5/ROSC | DCO resistor input / crystal oscillator input | Connects external resistor to set DCO frequency or serves as XIN for crystal oscillator |
| 6 / RST/NMI/SBWTDIO | Reset / nonmaskable interrupt / test data I/O | Active-low reset input; also carries SBW data during programming |
| 7–10, 14–19, 25–36 / P1.x–P4.x | General-purpose I/O with peripheral multiplexing | 32 total GPIO pins supporting timer capture/compare, ADC inputs (A0–A15), USCI signals, and op-amp I/O (not used in F2252) |
| 23 / AVCC | Analog supply voltage | Separate analog power rail; must be filtered and decoupled independently from DVCC |
| 22 / AVSS | Analog ground reference | Isolated analog ground plane connection; critical for ADC accuracy and noise immunity |
| QFN Pad | Thermal and electrical ground | Exposed pad under package; must be soldered to PCB ground plane for thermal dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with full RAM retention enables multi-year battery life in intermittent sensing applications |
| Integrated analog subsystem | 10-bit ADC10 with 12-channel input mux, internal reference, and DTC eliminates need for external DMA controller |
| Flexible clock system | Four factory-calibrated DCO frequencies (±1%) plus support for 32-kHz crystal and HF crystal up to 16 MHz enable precise timing without external oscillators |
| Low-pin-count debug interface | Spy-Bi-Wire (2-wire) allows full programming, emulation, and breakpoint debugging using only TEST and SBWTDIO pins |
| Robust system control | Brownout detector, watchdog timer, and power-on reset ensure reliable startup and fault recovery in unattended deployments |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, data preprocessing, low-power sleep scheduling, and SPI communication with RF IC. Use Value: Sub-1-µs wake-up and 0.7 µA standby current extend coin-cell life beyond 5 years at 10-second sampling intervals. |
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, digital filtering, and real-time display update via SPI. Use Value: Integrated 10-bit ADC with autoscan and internal reference reduces BOM count by eliminating external precision reference and mux ICs. |
| Industrial Data Logger | Smart Meter Sensor Interface |
|
Use Scenario: DIN-rail mounted logger capturing voltage/current/temperature readings every minute for cloud upload. IC Role / Device Role / Timing Role: Low-power host processor executing scheduled ADC conversions, timestamping via ACLK, and buffering data in RAM before transmission. Use Value: Brownout detector and programmable code protection prevent firmware corruption during unstable AC-DC supply transitions. |
Use Scenario: Electricity meter front-end digitizing shunt-based current measurements and isolating communication lines. IC Role / Device Role / Timing Role: Isolated analog interface MCU handling galvanically separated ADC reads and UART-to-optocoupler bridging. Use Value: Dual 16-bit timers support precise pulse-width measurement of utility frequency while maintaining <1 µs interrupt latency for fault detection. |
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 |
|---|---|---|---|
| MSP430F2272IRHAR | 32KB+256B flash, 1KB RAM, same peripherals and package | Supports larger firmware images and extended data logging buffers | Select when firmware size exceeds 16KB or RAM requirements exceed 512B |
| MSP430F2232IRHAR | 8KB+256B flash, 512B RAM, identical peripheral set and pinout | Limited to simpler control algorithms and smaller sensor fusion routines | Select for cost-sensitive designs where code footprint remains under 8KB |
Compared with MSP430F2272IRHAR and MSP430F2232IRHAR, the MSP430F2252IRHAR provides optimal balance of memory resources and peripheral capability in the 40-pin QFN form factor - making it ideal for mid-complexity sensor edge nodes requiring field-upgradable firmware without over-provisioning flash.
Availability
MSP430F2252IRHAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial data loggers, and smart meter sensor interfaces requiring stable component supply across long-lifecycle embedded programs.
Supply support for MSP430F2252IRHAR 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 MSP430F2252IRHAR belongs to the MSP430F22x2 ultra-low-power microcontroller family, designed specifically for energy-constrained applications where extended battery life, integrated analog functionality, and robust system-level reliability are essential.
FAQ
What is the maximum operating frequency of the MSP430F2252IRHAR?
The MSP430F2252IRHAR supports a maximum system clock (MCLK) frequency of 16 MHz when using an external high-frequency crystal or resonator. Its internal digitally controlled oscillator (DCO) is factory-calibrated to ±1% at 1 MHz but can be tuned across a wide range; actual achievable DCO frequency depends on supply voltage and temperature conditions specified in the SLAS504G datasheet.
Does the MSP430F2252IRHAR include operational amplifiers?
No, the MSP430F2252IRHAR does not include operational amplifiers. Operational amplifiers are exclusive to the MSP430F22x4 series (e.g., MSP430F2254IRHAR). The MSP430F2252IRHAR belongs to the F22x2 family and shares the same peripheral set as MSP430F2232IRHAR and MSP430F2272IRHAR - which omit the two integrated op-amps present in the F22x4 variants.
What debug interface does the MSP430F2252IRHAR support?
The MSP430F2252IRHAR supports the Spy-Bi-Wire (SBW) interface using pins TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This 2-wire protocol enables full in-system programming, real-time debugging, and breakpoint execution without requiring a full 4-wire JTAG header - reducing PCB layout complexity and connector cost.
How many analog input channels does the ADC10 module support on the MSP430F2252IRHAR?
The ADC10 module on the MSP430F2252IRHAR supports up to 12 analog input channels (A0–A7, A12–A15) as confirmed in Table 3 of SLAS504G. These are mapped across Ports P1–P4, with dedicated analog-capable pins including P2.0/A0, P2.1/A1, P2.2/A2, P2.3/A3, P2.4/A4, P3.6/A6, P3.7/A7, P4.3/A12, P4.4/A13, P4.5/A14, and P4.6/A15.
Is the MSP430F2252IRHAR pin-compatible with other devices in the MSP430F22x2 family?
Yes, the MSP430F2252IRHAR is fully pin-compatible with other RHA-package devices in the MSP430F22x2 family, including MSP430F2232IRHAR and MSP430F2272IRHAR. All share identical 40-pin QFN (RHA) footprints, pin functions, and electrical characteristics - enabling hardware reuse across different memory configurations within the same design platform.
MSP430F2252IRHAR 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:
- 16KB (16K 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:
MSP430F2252IRHAR FAQ
1.How can I place an order for MSP430F2252IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2252IRHAR 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 MSP430F2252IRHAR reliable?
The price and inventory of MSP430F2252IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2252IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430F2252IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2252IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2252IRHAR?
MSP430F2252IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2252IRHAR 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 MSP430F2252IRHAR?
For technical support, including MSP430F2252IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2252IRHAR requirements.
6.How does Aetrix verify that MSP430F2252IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430F2252IRHAR 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 MSP430F2252IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430F2252IRHAR?
All MSP430F2252IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2252IRHAR, 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 MSP430F2252IRHAR part is unused and in its original packaging.
Return procedure for MSP430F2252IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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