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Texas Instruments MSP430F2234IRHAT
- Part No.:
- MSP430F2234IRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2234IRHAT.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,745
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Product details
Overview
MSP430F2234IRHAT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB Flash + 256B info memory, 512B RAM, dual operational amplifiers, 10-bit 200-ksps ADC with internal reference and data transfer controller, two 16-bit timers (Timer_A3 and Timer_B3), and USCI modules supporting UART/LIN, IrDA, SPI, and I²C - deployed in battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2234IRHAT datasheet, MSP430F2234IRHAT pinout, MSP430F2234IRHAT application, or MSP430F2234IRHAT equivalent, key selection criteria include its 40-pin QFN (RHA) package, -40°C to 85°C industrial temperature grade, dual op-amp support, 1.8–3.6 V supply range, and integrated brownout detector with sub-1 µs wake-up from standby mode.
Technical Context
The MSP430F2234IRHAT 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), calibrated internal frequencies up to 16 MHz, and support for 32-kHz crystal, HF crystal (≤16 MHz), resonator, or external digital clock source.
It features two configurable operational amplifiers (OA0 and OA1), each with multiple input/output configurations mapped across P2/P3/P4 pins; a 10-bit ADC with 12 analog inputs (A0–A7, A12–A15), internal reference, sample-and-hold, autoscan, and DTC; and USCI_A0/USCI_B0 modules enabling simultaneous UART/IrDA/SPI and SPI/I²C communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle time at 16 MHz |
| Memory | 8KB + 256B Flash, 512B RAM - supports in-system programming and security fuse protection |
| ADC | 10-bit, 200-ksps SAR ADC with 12-channel input mux, internal reference, autoscan, and DTC for zero-CPU data movement |
| Timers | Timer_A3 (3 capture/compare registers) and Timer_B3 (3 capture/compare registers with shadow registers) |
| Op Amps | Two rail-to-rail operational amplifiers (OA0, OA1) with programmable gain and multiple input/output pin mappings |
| Supply Range | 1.8 V to 3.6 V - enables direct operation from single Li-ion or two alkaline cells |
| Ultra-Low Power | 270 µA active @ 1 MHz/2.2 V; 0.7 µA standby; 0.1 µA off-mode with RAM retention |
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/debug via 2-wire interface; no JTAG header required |
| 6 / RST/NMI/SBWTDIO | Reset/nonmaskable interrupt/test data I/O | Single-pin reset, NMI, and bidirectional Spy-Bi-Wire data path |
| 7–10, 14–19, 29–36, 38 / P1.x–P4.x | Configurable GPIO with peripheral multiplexing | 32 total I/O pins with interrupt capability, pull-up/down resistors, and timer/ADC/USCI function overlay |
| 22 / AVSS | Analog ground reference | Separate analog return path minimizes noise coupling into ADC and op amps |
| 23 / AVCC | Analog supply voltage | Dedicated 1.8–3.6 V analog rail decoupled from digital DVCC for precision analog performance |
| 30 / P2.4/TA2/A4/VREF+/VeREF+/OA1I0 | Multi-function analog terminal | Simultaneously serves as ADC channel A4, positive reference input, and OA1 non-inverting input |
Key Features
| Feature | Design Value |
|---|---|
| Dual Operational Amplifiers | OA0 and OA1 support programmable gain, multiple input configurations (e.g., P2.0/OA0I0, P3.6/OA0I2), and output routing (e.g., P2.1/OA0O, P4.3/OA0O) |
| Integrated Data Transfer Controller (DTC) | Automatically moves ADC conversion results to memory without CPU intervention - reduces active time and power by >30% in sensor sampling loops |
| Ultra-Fast Wake-Up | Sub-1 µs transition from LPM4 (0.1 µA) to active mode enables burst-sensing architectures with high duty-cycle efficiency |
| Calibrated Internal Oscillator | Four factory-trimmed DCO frequencies (±1% accuracy) eliminate need for external crystal in cost-sensitive applications |
| Bootstrap Loader (BSL) | UART-based firmware update over existing serial interface - no external programmer needed in field deployments |
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, op-amp signal conditioning of analog sensors, low-power timer scheduling, and UART framing. Use Value: Dual op amps condition weak sensor outputs; DTC offloads ADC data movement; sub-1 µs wake-up ensures <10 µs active window per reading - extending coin-cell life to >5 years. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, performing real-time SpO₂ calculation, and displaying results on LCD. IC Role / Device Role / Timing Role: Mixed-signal controller executing analog front-end amplification, synchronized dual-channel ADC acquisition, and real-time digital filtering. Use Value: Dedicated OA0/OA1 configure transimpedance and differential amplifiers; 10-bit ADC with internal reference eliminates external voltage references; 512B RAM holds filter coefficients and waveform buffers. |
| Industrial Process Transmitter | Smart Meter Sensor Interface |
Use Scenario: 4–20 mA loop-powered transmitter measuring flow rate using differential pressure sensor, with HART modulation capability. IC Role / Device Role / Timing Role: Low-power signal processor handling analog input conditioning, linearization, and HART FSK modulation via USCI_A0 UART. Use Value: Op amps provide precision instrumentation amplification; USCI_A0 supports auto-baud LIN/HART timing; brownout detector prevents erratic behavior during loop voltage dips. |
Use Scenario: Electricity meter auxiliary sensor board monitoring neutral current, temperature, and tamper detection with isolated UART to main MCU. IC Role / Device Role / Timing Role: Isolated sensor interface MCU acquiring analog inputs, detecting threshold violations, and reporting via opto-coupled UART. Use Value: 12-channel ADC monitors multiple analog points; LPM3 mode (0.3 µA) maintains real-time clock and interrupt readiness while drawing negligible standby current. |
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 |
|---|---|---|---|
| MSP430F2254IRHAT | 16KB Flash + 256B info memory, same peripherals and pinout | Supports larger firmware images and complex sensor fusion algorithms | Select when firmware size exceeds 8KB or future scalability is required |
| MSP430F2274IRHAT | 32KB Flash + 256B info memory, 1KB RAM, identical peripheral set | Enables full-featured protocol stacks (e.g., Modbus RTU) and extended data logging | Choose for applications requiring >16KB code space or >512B RAM buffer depth |
Compared with MSP430F2254IRHAT and MSP430F2274IRHAT, the MSP430F2234IRHAT delivers optimal cost-performance balance for fixed-function sensor nodes where 8KB Flash and dual op amps meet all requirements - avoiding over-provisioned memory and associated BOM cost.
Availability
MSP430F2234IRHAT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial process transmitters, and smart meter sensor interfaces requiring stable component supply, long-term industrial temperature support (-40°C to 85°C), and verified ultra-low-power operation.
Supply support for MSP430F2234IRHAT 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 MSP430F2234IRHAT belongs to the MSP430F2xx ultra-low-power microcontroller family, designed specifically for battery-operated and energy-constrained measurement applications requiring precision analog integration, rapid wake-up, and minimal active power.
FAQ
What is the operating temperature range for the MSP430F2234IRHAT?
The MSP430F2234IRHAT is rated for industrial operation from -40°C to +85°C. This range is validated across all specifications including Flash programming endurance, ADC linearity, op-amp offset drift, and brownout detector thresholds - making it suitable for outdoor sensor enclosures and factory-floor equipment without additional thermal management.
Does the MSP430F2234IRHAT support in-system programming without external voltage?
Yes, the MSP430F2234IRHAT supports serial onboard programming with no external programming voltage required. It uses the integrated Spy-Bi-Wire interface (via pins 1 and 6) and built-in bootstrap loader (BSL) accessible over UART, enabling firmware updates directly in the end product using only VCC, GND, and two signal lines.
How many analog input channels does the ADC support on the MSP430F2234IRHAT?
The MSP430F2234IRHAT's 10-bit ADC supports 12 analog input channels: A0 through A7 (mapped to P2.0–P2.3, P3.6–P3.7), plus A12 through A15 (mapped to P4.3–P4.6). All channels share the same VREF+/VREF− inputs and can be scanned automatically using the data transfer controller (DTC) without CPU involvement.
Are the two operational amplifiers on the MSP430F2234IRHAT independently configurable?
Yes, OA0 and OA1 are fully independent: each has dedicated non-inverting/inverting inputs and output pins (e.g., OA0I0/OA0I1/OA0O on P2.0/P2.2/P2.1; OA1I0/OA1I1/OA1O on P2.4/P2.3/P4.4), programmable gain settings via software-controlled resistor ladders, and selectable output routing - allowing simultaneous use in separate signal chains such as sensor pre-amplification and reference buffering.
What debug interface does the MSP430F2234IRHAT use, and is external hardware required?
The MSP430F2234IRHAT uses the 2-wire Spy-Bi-Wire (SBW) interface on pins TEST/SBWTCK (pin 1) and RST/NMI/SBWTDIO (pin 6). No external debugger hardware is mandatory: TI's MSP-FET430UIF or open-source SBW interfaces enable full flash programming, real-time debugging, and breakpoint execution - all without JTAG header footprint or additional pins.
MSP430F2234IRHAT 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:
MSP430F2234IRHAT FAQ
1.How can I place an order for MSP430F2234IRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2234IRHAT 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 MSP430F2234IRHAT reliable?
The price and inventory of MSP430F2234IRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2234IRHAT is usually 5 days.
3.What payment methods are accepted for MSP430F2234IRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2234IRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2234IRHAT?
MSP430F2234IRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2234IRHAT 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 MSP430F2234IRHAT?
For technical support, including MSP430F2234IRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2234IRHAT requirements.
6.How does Aetrix verify that MSP430F2234IRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430F2234IRHAT 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 MSP430F2234IRHAT meets industry standards.
7.What is the process for return or replacement of MSP430F2234IRHAT?
All MSP430F2234IRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2234IRHAT, 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 MSP430F2234IRHAT part is unused and in its original packaging.
Return procedure for MSP430F2234IRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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