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Texas Instruments MSP430F2234IDA
- Part No.:
- MSP430F2234IDA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430F2234IDA.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,127
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Product details
Overview
MSP430F2234IDA from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 8KB + 256B flash memory, 512B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, two configurable operational amplifiers, and dual 16-bit timers (Timer_A and Timer_B). It operates across 1.8 V–3.6 V and targets battery-powered sensor acquisition systems requiring analog signal conditioning, digitization, and local processing.
For engineers reviewing the MSP430F2234IDA datasheet, MSP430F2234IDA pinout, MSP430F2234IDA application, or MSP430F2234IDA equivalent, key selection criteria include its DA-package TSSOP-38 footprint, integrated op-amps for sensor front-end amplification, ultra-low standby current (0.7 µA), Spy-Bi-Wire debug interface, and LIN-capable USCI_A0 UART with auto-baudrate detection.
Technical Context
The MSP430F2234IDA implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock system supports internal DCO (calibrated to ±1% at 1 MHz, 8 MHz, 12 MHz, 16 MHz), 32-kHz crystal (ACLK), and external HF crystal up to 16 MHz - all configurable via software-controlled clock modules.
It integrates two independent operational amplifiers (OA0 and OA1) with multiple input/output configurations per pin (e.g., P2.0/OA0I0, P4.3/OA0O), supporting programmable gain stages and rail-to-rail operation. The ADC10 uses a data transfer controller (DTC) for autonomous sampling across up to 12 analog inputs without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle time - enables deterministic real-time control and efficient C-code execution. |
| Flash / RAM | 8KB + 256B flash memory with security fuse; 512B RAM - sufficient for compact firmware with sensor algorithms and communication stacks. |
| ADC Performance | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and DTC - supports continuous multi-channel acquisition without CPU polling. |
| 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. |
| Operating Voltage | 1.8 V to 3.6 V supply range - compatible with single-cell Li-ion, LiFePO₄, or dual-AA alkaline power sources. |
| Peripherals | Two 16-bit timers (Timer_A3, Timer_B3), USCI_A0 (UART/LIN/IrDA/SPI), USCI_B0 (SPI/I²C), two op-amps, brownout detector - enables full-system integration without external support ICs. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with embedded emulation module - allows in-circuit debugging and programming using MSP-FET430UIF or MSP-FET430U38. |
Pinout & Package
Package: 38-pin Thin Shrink Small-Outline Package (TSSOP-DA), 9.7 mm × 4.4 mm, 0.65 mm pitch, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Enables synchronous triggering of ADC conversions using Timer_A output or external source. |
| P2.0/ACLK/A0/OA0I0 | ACLK output / ADC channel A0 / OA0 non-inverting input | Shared pin supports low-frequency timing, analog sensing, and op-amp signal conditioning in one I/O. |
| P2.3/TA1/A3/VREF−/VeREF−/OA1I1/OA1O | Timer_A compare / ADC A3 / ADC negative reference / OA1 input or output | Configurable as op-amp output for driving ADC reference or as input for differential sensor interfacing. |
| P3.4/UCA0TXD/UCA0SIMO | USCI_A0 UART TX / SPI master-out | Single-pin bidirectional serial interface supports LIN bus communication or SPI peripheral control. |
| P4.3/TB0/A12/OA0O | Timer_B capture/compare / ADC A12 / OA0 output | Direct connection between timer output, analog input, and op-amp output enables closed-loop analog control loops. |
| RST/NMI/SBWTDIO | Reset / NMI input / Spy-Bi-Wire data I/O | Multi-function pin provides reset assertion, non-maskable interrupt, and debug communication over single wire. |
| TEST/SBWTCK | Spy-Bi-Wire test clock input | Dedicated 2-wire debug clock pin enables programming and debugging without full JTAG header. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Op-Amps | Two rail-to-rail operational amplifiers (OA0, OA1) with programmable input routing (e.g., P3.6/OA0I2, P4.4/OA1O) - eliminates need for external signal-conditioning ICs in sensor nodes. |
| Ultra-Low-Power Modes | Five software-selectable low-power modes (LPM0–LPM4); wake-up from LPM3/LPM4 in <1 µs - ideal for duty-cycled wireless sensor endpoints. |
| Autonomous ADC Operation | ADC10 with Data Transfer Controller (DTC) performs sequenced conversions and memory writes without CPU involvement - reduces active time and power. |
| LIN-Compatible UART | USCI_A0 supports LIN 2.0 auto-baudrate detection and break detection - enables direct integration into automotive body electronics networks. |
| On-Chip Emulation | Embedded Emulation Module (EEM) with two hardware breakpoints - supports real-time debugging and flash programming in production environments. |
| Calibrated Internal Oscillator | Digital Controlled Oscillator (DCO) factory-calibrated at four frequencies (1/8/12/16 MHz) to ±1% - removes need for external crystal in cost-sensitive designs. |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Primary MCU handling analog sensor signal acquisition (via ADC10 + OA0), digital processing, and LIN/UART communication. Use Value: Ultra-low standby current (0.7 µA) and fast wake-up (<1 µs) enable multi-year battery life with periodic measurement bursts. |
Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and computing SpO₂. IC Role / Device Role / Timing Role: Signal conditioner (OA0/OA1), ADC controller (ADC10 with DTC), and data processor executing real-time algorithm. Use Value: Integrated op-amps provide programmable gain and filtering; 10-bit ADC resolution supports clinical-grade signal fidelity. |
| Smart Meter Front-End | Automotive Body Control Module |
Use Scenario: Electricity meter measuring voltage/current via shunt/resistive dividers and reporting via RS-485. IC Role / Device Role / Timing Role: Analog front-end controller with precision ADC reference (VREF+/VREF−), timer-triggered sampling, and UART interface. Use Value: Internal reference and autoscan allow stable multi-channel measurements; brownout detector prevents corruption during line dips. |
Use Scenario: Door module monitoring switches, controlling LEDs, and communicating over LIN bus. IC Role / Device Role / Timing Role: LIN node MCU with USCI_A0 UART, GPIO for switch debouncing, and PWM-capable timers for LED dimming. Use Value: LIN auto-baudrate simplifies ECU integration; low-power modes reduce parasitic drain when vehicle is off. |
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 |
|---|---|---|---|
| MSP430F2254IDA | 16KB + 256B flash, same peripherals and pinout - higher code capacity for complex protocols or OTA updates. | Preferred where firmware size exceeds 8KB, e.g., BLE stack integration or advanced diagnostics. | Select when future firmware expansion is anticipated; identical DA package and migration path. |
| MSP430F2274IDA | 32KB + 256B flash, 1KB RAM - larger memory and enhanced timer resources (e.g., more capture/compare registers). | Suitable for applications requiring extended data logging buffers or multi-protocol support (e.g., UART + I²C + SPI simultaneously). | Choose for scalability beyond 16KB; retains same pinout and op-amp/ADC architecture. |
Compared with MSP430F2254IDA and MSP430F2274IDA, the MSP430F2234IDA delivers optimal balance of ultra-low power, integrated analog front-end, and compact code footprint - making it ideal for cost-constrained, battery-operated sensor endpoints where 8KB flash suffices.
Availability
MSP430F2234IDA is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart meter front-ends, and automotive body control modules requiring stable component supply and long-term manufacturability.
Supply support for MSP430F2234IDA 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 company specializing in analog, embedded processing, and connectivity technologies, with leadership in low-power design and industrial-grade reliability.
The MSP430F2234IDA belongs to the MSP430F22x4 family - designed specifically for ultra-low-power mixed-signal applications where analog sensing, signal conditioning, and energy-efficient processing coexist on a single chip.
FAQ
What is the maximum operating frequency of the MSP430F2234IDA?
The MSP430F2234IDA supports a maximum system clock (MCLK) of 16 MHz, achievable via its internal digitally controlled oscillator (DCO) calibrated to ±1% at 16 MHz or through an external HF crystal up to 16 MHz. This enables high-speed instruction execution while maintaining ultra-low power consumption in active mode.
Does the MSP430F2234IDA include hardware debug capability?
Yes, the MSP430F2234IDA integrates an Embedded Emulation Module (EEM) supporting Spy-Bi-Wire (2-wire JTAG) debugging. It works with TI's MSP-FET430UIF and MSP-FET430U38 programmers, enabling full-speed debugging, flash programming, and real-time variable inspection without halting system operation.
How many analog input channels does the ADC10 support on the MSP430F2234IDA?
The ADC10 in the MSP430F2234IDA supports up to 12 analog input channels (A0–A7, A12–A15), with dedicated pins including P2.0/A0, P2.1/A1, P2.2/A2, P2.3/A3, P2.4/A4, P3.0/A5, P3.6/A6, P3.7/A7, P4.3/A12, P4.4/A13, P4.5/A14, and P4.6/A15 - enabling flexible multi-sensor acquisition.
Can the operational amplifiers in the MSP430F2234IDA drive external loads directly?
Yes, the two integrated op-amps (OA0 and OA1) in the MSP430F2234IDA support rail-to-rail output swing and can drive moderate capacitive loads (≤100 pF) and resistive loads (≥10 kΩ). They are intended for sensor signal conditioning, reference buffering, and driving ADC inputs - not for high-current output stages.
Is the MSP430F2234IDA pin-compatible with other devices in the MSP430F22x4 family?
Yes, the MSP430F2234IDA shares identical pinout and package (TSSOP-DA) with all MSP430F22x4 variants including MSP430F2254IDA and MSP430F2274IDA. This enables drop-in replacement and scalable firmware development across memory variants without PCB redesign.
MSP430F2234IDA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tube
- 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:
MSP430F2234IDA FAQ
1.How can I place an order for MSP430F2234IDA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2234IDA 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 MSP430F2234IDA reliable?
The price and inventory of MSP430F2234IDA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2234IDA is usually 5 days.
3.What payment methods are accepted for MSP430F2234IDA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2234IDA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2234IDA?
MSP430F2234IDA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2234IDA 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 MSP430F2234IDA?
For technical support, including MSP430F2234IDA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2234IDA requirements.
6.How does Aetrix verify that MSP430F2234IDA is sourced from the original manufacturer or authorized distributors?
All MSP430F2234IDA 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 MSP430F2234IDA meets industry standards.
7.What is the process for return or replacement of MSP430F2234IDA?
All MSP430F2234IDA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2234IDA, 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 MSP430F2234IDA part is unused and in its original packaging.
Return procedure for MSP430F2234IDA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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