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Texas Instruments MSP430F2274IRHAR
- Part No.:
- MSP430F2274IRHAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2274IRHAR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,829
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Product details
Overview
MSP430F2274IRHAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, dual operational amplifiers, 10-bit 200-ksps ADC with internal reference and DTC, two 16-bit timers (Timer_A3 and Timer_B3), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and 32 I/O pins - deployed in sensor signal acquisition, battery-powered measurement, and RF front-end control systems.
For engineers reviewing the MSP430F2274IRHAR datasheet, MSP430F2274IRHAR pinout, MSP430F2274IRHAR application, or MSP430F2274IRHAR equivalent, this page delivers verified specifications, QFN-40 package terminal mapping, functional alternatives, and design-critical low-power mode behavior for embedded firmware and hardware integration.
Technical Context
The MSP430F2274IRHAR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (±1%), plus support for 32-kHz crystal, HF crystal up to 16 MHz, resonator, or external digital clock source.
It features two independent 16-bit timers - Timer_A3 with three capture/compare registers and Timer_B3 with three capture/compare registers plus shadow registers - alongside dual programmable op amps (OA0 and OA1) supporting configurable gain, input routing, and output multiplexing across multiple pins including P2.0–P4.6.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle at 16 MHz |
| Flash Memory | 32KB + 256B of on-chip flash with programmable code protection via security fuse |
| RAM | 1KB of SRAM with retention in LPM3/LPM4 low-power modes |
| ADC | 10-bit, 200-ksps SAR ADC with 12-channel analog input, internal reference, sample-and-hold, autoscan, and data transfer controller (DTC) |
| Power Consumption | 270 µA active @ 1 MHz/2.2 V; 0.7 µA standby; 0.1 µA off-mode (RAM retention) |
| Operating Voltage | 1.8 V to 3.6 V supply range - enables direct Li-ion/Li-poly battery operation without regulation |
| Wake-up Time | <1 µs from standby to active mode - critical for event-driven sensing and duty-cycled operation |
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 single-wire JTAG-like programming and debugging; no external programmer voltage required |
| 6 / RST/NMI/SBWTDIO | Reset/nonmaskable interrupt/test data I/O | Active-low reset with NMI capability; bidirectional for Spy-Bi-Wire communication during programming |
| P2.0/ACLK/A0/OA0I0 | ACLK output / ADC channel A0 / OA0 inverting input | Shared pin supports low-frequency clock distribution, analog sensing, and op-amp signal conditioning |
| P2.1/TAINCLK/SMCLK/A1/OA0O | Timer_A input clock / SMCLK output / ADC A1 / OA0 output | Enables synchronized timer operation, system clock visibility, and buffered analog output routing |
| P4.3/TB0/A12/OA0O | Timer_B capture/compare 0 / ADC A12 / OA0 output | Allows simultaneous PWM generation, high-channel ADC sampling, and op-amp output multiplexing |
| P4.4/TB1/A13/OA1O | Timer_B capture/compare 1 / ADC A13 / OA1 output | Supports dual-op-amp feedback loops with independent timing and analog readback |
| DVSS / AVSS / QFN Pad | Digital/analog ground / thermal pad | Separate ground planes minimize noise coupling; exposed pad improves thermal dissipation and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-µA standby and off-mode currents enable multi-year battery life in wireless sensors |
| Dual configurable op amps | Two rail-to-rail op amps with selectable inputs/outputs across 12 pins - eliminates need for external signal-conditioning ICs |
| Integrated USCI modules | USCI_A0 supports LIN auto-baud detection and IrDA encoding; USCI_B0 provides hardware I²C master/slave and SPI - no bit-banging required |
| On-chip emulation module (EEM) | Full hardware debug support via MSP-FET430UIF or MSP-FET430U38 - enables real-time breakpoints and register inspection |
| Bootstrap loader (BSL) | UART-based field firmware update without external programmer - secured by password and BSL key disable |
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, op-amp signal conditioning for thermistor bridge, UART-LIN interface to RF IC, and ultra-low-power sleep/wake scheduling. Use Value: 0.1 µA off-mode current extends CR2032 battery life beyond 5 years; integrated op amps reduce BOM count by two components. |
Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and driving LED drivers. IC Role / Device Role / Timing Role: Simultaneous dual-op-amp front end (transimpedance + gain stage), 200-ksps ADC oversampling, and precise PWM timing for LED modulation. Use Value: On-die op amps with matched input offsets improve SNR; DTC automates ADC-to-RAM transfers without CPU intervention. |
| Industrial Process Transmitter | Smart Meter Analog Front End |
Use Scenario: 4–20 mA loop-powered transmitter measuring pressure via strain-gauge bridge. IC Role / Device Role / Timing Role: Precision ratiometric ADC measurement, op-amp excitation and signal amplification, HART modem interface via USCI_A0 UART. Use Value: Internal 1.5-V reference and VREF+/VREF− inputs enable stable ratiometric conversion; LIN-capable UART simplifies HART physical layer compliance. |
Use Scenario: Electricity meter monitoring voltage/current waveforms using shunt and CT sensors. IC Role / Device Role / Timing Role: High-speed ADC sampling (200 ksps) across 12 channels, Timer_B PWM generation for anti-tamper LED indicators, and SPI interface to metrology ASIC. Use Value: Autoscan + DTC handles continuous waveform capture into circular buffer; dual timers allow independent metering and UI timing. |
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 | 16KB+256B flash, 512B RAM, no op amps - identical pinout and peripheral set otherwise | Suitable for cost-sensitive designs where analog signal chain is external or simplified | Select when flash/RAM headroom and integrated op amps are not required; reduces BoM cost by ~15% |
| MSP430F249TRHAR | 60KB flash, 2KB RAM, no op amps, enhanced USCI (dual UART/I²C), but higher active current (350 µA @ 1 MHz) | Better for firmware-rich applications needing larger code space and dual serial interfaces | Choose when extended flash and dual USCI modules outweigh added power consumption and missing op amps |
Compared with MSP430F2272IRHAR, the MSP430F2274IRHAR adds 16KB flash, 512B RAM, and two op amps - enabling self-contained analog front ends without external components. Against MSP430F249TRHAR, it trades flash size and serial flexibility for lower power and integrated signal conditioning - ideal for compact, battery-constrained sensor nodes.
Availability
MSP430F2274IRHAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial process transmitters, and smart meter analog front ends requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430F2274IRHAR 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 MSP430F2274IRHAR belongs to the MSP430F2xx ultra-low-power microcontroller family, designed specifically for battery-operated measurement and sensing applications demanding nanowatt-level power management and integrated analog peripherals.
FAQ
What is the maximum operating frequency of the MSP430F2274IRHAR?
The MSP430F2274IRHAR supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the internal DCO calibrated to ±1% or an external HF crystal up to 16 MHz. Its 16-bit RISC architecture delivers 62.5-ns instruction cycle time at this speed, enabling responsive real-time control while maintaining ultra-low power consumption in active mode.
Does the MSP430F2274IRHAR include hardware debug support?
Yes, the MSP430F2274IRHAR integrates an Embedded Emulation Module (EEM) supporting full hardware debugging via Spy-Bi-Wire interface. It works with TI's MSP-FET430UIF (USB) and MSP-FET430U38 (QFN-targeted) programmers, enabling breakpoints, register inspection, and real-time execution control without requiring additional debug circuitry on the target board.
How many analog input channels does the ADC10 module support on the MSP430F2274IRHAR?
The ADC10 module on the MSP430F2274IRHAR supports 12 analog input channels: A0 through A7 (P2.0–P3.7), plus A12 through A15 (P4.3–P4.6). All channels are accessible via the same 10-bit SAR converter with internal reference, sample-and-hold, autoscan, and data transfer controller - enabling efficient multi-channel sensor acquisition without CPU overhead.
Can the MSP430F2274IRHAR operate from a single 2.0-V supply?
Yes, the MSP430F2274IRHAR operates across a supply voltage range of 1.8 V to 3.6 V. At 2.0 V, it maintains full functionality including 16-MHz DCO operation (with reduced margin), ADC conversions, op-amp operation, and all low-power modes - making it compatible with unregulated single-cell lithium or alkaline battery sources without external regulators.
What development tools are recommended for the MSP430F2274IRHAR?
Texas Instruments recommends the MSP-FET430UIF (USB-based) or MSP-FET430PIF (parallel port) for programming and debugging, and the MSP-FET430U38 evaluation board for rapid prototyping with the RHA package. The device also supports UART-based BSL updates using standard terminal software, enabling field firmware upgrades without dedicated hardware tools.
MSP430F2274IRHAR 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:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
MSP430F2274IRHAR FAQ
1.How can I place an order for MSP430F2274IRHAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2274IRHAR 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 MSP430F2274IRHAR reliable?
The price and inventory of MSP430F2274IRHAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2274IRHAR is usually 5 days.
3.What payment methods are accepted for MSP430F2274IRHAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2274IRHAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2274IRHAR?
MSP430F2274IRHAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2274IRHAR 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 MSP430F2274IRHAR?
For technical support, including MSP430F2274IRHAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2274IRHAR requirements.
6.How does Aetrix verify that MSP430F2274IRHAR is sourced from the original manufacturer or authorized distributors?
All MSP430F2274IRHAR 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 MSP430F2274IRHAR meets industry standards.
7.What is the process for return or replacement of MSP430F2274IRHAR?
All MSP430F2274IRHAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2274IRHAR, 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 MSP430F2274IRHAR part is unused and in its original packaging.
Return procedure for MSP430F2274IRHAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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