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Texas Instruments MSP430F2254IDAR
- Part No.:
- MSP430F2254IDAR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430F2254IDAR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,323
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Product details
Overview
MSP430F2254IDAR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 16KB+256B flash memory, 512B RAM, dual operational amplifiers, 10-bit 200-ksps ADC with integrated reference and data transfer controller, two 16-bit timers (Timer_A and Timer_B), and USCI modules supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring analog signal capture, processing, and wireless transmission.
For engineers reviewing the MSP430F2254IDAR datasheet, MSP430F2254IDAR pinout, MSP430F2254IDAR application, or MSP430F2254IDAR equivalent, key selection criteria include its 38-pin TSSOP (DA) package, dual op-amp support, 12-channel ADC with autoscan, Spy-Bi-Wire debug interface, and LPM4 standby current of 0.1 µA - all critical for low-energy embedded measurement designs.
Technical Context
The MSP430F2254IDAR integrates a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its clock system includes digitally controlled oscillator (DCO), internal VLO, and support for external crystals up to 16 MHz - with four factory-calibrated DCO frequencies accurate to ±1%.
It features two independent 16-bit timers: Timer_A with three capture/compare registers and Timer_B with three capture/compare registers plus shadow registers. The USCI_A0 module supports enhanced UART with auto-baudrate detection (LIN), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave operation.
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 |
| Flash / RAM | 16KB + 256B flash memory with security fuse; 512B RAM for data and stack storage |
| ADC | 10-bit, 200-ksps SAR ADC with 12 input channels, internal reference, sample-and-hold, autoscan, and DTC |
| Operational Amplifiers | Two rail-to-rail op-amps (OA0 and OA1) with configurable inputs/outputs and gain stages |
| Low-Power Modes | Five software-selectable low-power modes; LPM4 draws only 0.1 µA with RAM retention |
| Supply Voltage | 1.8 V to 3.6 V operation - enables direct use with single Li-ion or two alkaline cells |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) with on-chip emulation module for full-speed debugging and programming |
Pinout & Package
Package: 38-pin Thin Shrink Small-Outline Package (TSSOP), suffix DA, body size 9.7 mm × 4.4 mm, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Configurable clock source for Timer_A and ADC10 timing control |
| P2.0/ACLK/A0/OA0I0 | ACLK output / ADC channel A0 / OA0 inverting input | Shared pin enables simultaneous low-frequency clock generation and analog sensing |
| P2.3/TA1/A3/VREF−/VeREF−/OA1I1/OA1O | Timer_A compare / ADC A3 / negative reference / OA1 I/O | Multi-function pin supports precision reference biasing and op-amp feedback paths |
| P3.4/UCA0TXD/UCA0SIMO | USCI_A0 transmit / SPI master-out | Dual-role UART TX or SPI data output simplifies serial peripheral integration |
| P4.3/TB0/A12/OA0O | Timer_B capture / ADC A12 / OA0 output | Enables synchronized timer-triggered ADC sampling and analog output buffering |
| RST/NMI/SBWTDIO | Reset / non-maskable interrupt / debug I/O | Single pin serves as reset input, NMI source, and bidirectional Spy-Bi-Wire data line |
| TEST/SBWTCK | Debug clock input | Dedicated 2-wire debug clock pin reduces PCB routing complexity vs. full JTAG |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power consumption | Active mode: 270 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA |
| Dual configurable op-amps | OA0 and OA1 support programmable gain, filtering, and sensor signal conditioning without external components |
| Integrated analog subsystem | 12-channel ADC with internal reference, autoscan, and DTC eliminates need for external DMA controller |
| Flexible clock system | Four factory-trimmed DCO frequencies (±1%), internal VLO, and crystal support up to 16 MHz enable robust timing across temperature |
| Enhanced UART with LIN support | Auto-baudrate detection allows reliable communication over noisy automotive or industrial bus lines |
| On-chip emulation module | Full-speed debugging via Spy-Bi-Wire using only two pins - no external debugger hardware required |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data for periodic BLE or sub-GHz transmission. IC Role / Device Role / Timing Role: Central MCU managing analog front-end acquisition, digital signal preprocessing, low-power scheduling, and serial interface to radio IC. Use Value: Dual op-amps condition resistive sensor outputs; 12-channel ADC scans multiple sensors autonomously; LPM4 extends battery life to >5 years on coin cell. |
Use Scenario: Handheld pulse oximeter acquiring photodiode signals, computing SpO₂, and displaying results on OLED. IC Role / Device Role / Timing Role: Signal-processing MCU performing analog amplification, synchronous ADC sampling, FIR filtering, and real-time saturation calculation. Use Value: Integrated op-amps provide transimpedance gain and offset correction; DTC automates multi-channel ADC reads; 0.1 µA off-mode preserves settings during sleep. |
| Industrial Process Controller | Smart Meter Sensor Interface |
Use Scenario: DIN-rail mounted device monitoring current, voltage, and temperature in motor control cabinets with RS-485 backhaul. IC Role / Device Role / Timing Role: Isolated sensor interface MCU handling analog isolation amplifier outputs, fault detection, and protocol translation to Modbus RTU. Use Value: USCI_B0 implements robust I²C for isolated ADCs; USCI_A0 handles RS-485 UART with LIN auto-baud for field interoperability; brownout detector prevents erratic behavior during supply dips. |
Use Scenario: Electricity meter auxiliary board measuring neutral current, tamper detection, and temperature for firmware calibration updates. IC Role / Device Role / Timing Role: Secondary MCU dedicated to metrology auxiliary functions, independent of main meter SoC. Use Value: 10-bit ADC with internal reference ensures stable measurements across voltage range; dual op-amps enable differential current sensing; flash security fuse protects calibration algorithms. |
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 |
|---|---|---|---|
| MSP430F2274IDAR | 32KB+256B flash, 1KB RAM, same peripherals and pinout | Supports larger firmware (e.g., OTA updates, cryptographic stacks) | Select when firmware size exceeds 16KB or RAM usage requires >512B |
| MSP430F2252IDAR | 8KB+256B flash, 512B RAM, no op-amps, otherwise identical architecture | Lacks analog signal conditioning capability; lower cost for simpler sensing | Select when dual op-amps are unnecessary and flash footprint is ≤8KB |
Compared with MSP430F2254IDAR, the F2274IDAR provides headroom for complex firmware while maintaining identical analog/peripheral integration, whereas the F2252IDAR removes op-amps and halve flash to reduce BOM cost - making the MSP430F2254IDAR the optimal balance of analog capability, memory, and ultra-low-power performance for mid-complexity sensor nodes.
Availability
MSP430F2254IDAR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial process controllers, smart meter sensor interfaces, and battery-backed data loggers requiring stable component supply across extended production lifecycles.
Supply support for MSP430F2254IDAR 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and consumer markets.
The MSP430F2254IDAR belongs to TI's MSP430F2xx ultra-low-power microcontroller family, designed specifically for energy-constrained applications where extended battery life, integrated analog functionality, and robust debug capability are essential.
FAQ
What is the maximum operating frequency of the MSP430F2254IDAR?
The MSP430F2254IDAR supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) with factory-calibrated frequencies or an external HF crystal. Its 16-bit RISC core delivers 62.5-ns instruction cycle time at this speed, enabling real-time signal processing in ultra-low-power applications without external clock sources.
Does the MSP430F2254IDAR include hardware debug support?
Yes, the MSP430F2254IDAR includes an on-chip Embedded Emulation Module (EEM) accessible via the 2-wire Spy-Bi-Wire interface using pins RST/NMI/SBWTDIO and TEST/SBWTCK. This enables full-speed debugging, flash programming, and real-time trace without requiring a 4-wire JTAG header - reducing PCB space and test fixture complexity.
How many analog input channels does the MSP430F2254IDAR ADC support?
The MSP430F2254IDAR integrates a 10-bit successive approximation ADC (ADC10) with 12 selectable analog input channels (A0–A7, A12–A15). These include dedicated pins and multiplexed functions on Port 2 and Port 4, and the ADC supports autoscan mode to sequentially convert all enabled channels without CPU intervention - ideal for multi-sensor systems.
What are the key differences between MSP430F2254IDAR and MSP430F2252IDAR?
The MSP430F2254IDAR includes two operational amplifiers and 16KB+256B flash memory, while the MSP430F2252IDAR has no op-amps and only 8KB+256B flash. Both share identical 38-pin TSSOP packaging, 512B RAM, ADC, timers, and USCI peripherals. The op-amps in MSP430F2254IDAR enable on-chip sensor signal conditioning, eliminating external amplifiers in analog front-end designs.
Is the MSP430F2254IDAR compatible with the MSP-FET430U38 development tool?
Yes, the MSP430F2254IDAR is fully supported by the MSP-FET430U38 - a USB-based debugging and programming interface with a built-in target board designed specifically for 38-pin TSSOP-packaged MSP430 devices. This tool enables seamless firmware download, breakpoint debugging, and real-time register inspection without custom adapter hardware.
MSP430F2254IDAR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- 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:
MSP430F2254IDAR FAQ
1.How can I place an order for MSP430F2254IDAR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2254IDAR 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 MSP430F2254IDAR reliable?
The price and inventory of MSP430F2254IDAR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2254IDAR is usually 5 days.
3.What payment methods are accepted for MSP430F2254IDAR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2254IDAR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2254IDAR?
MSP430F2254IDAR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2254IDAR 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 MSP430F2254IDAR?
For technical support, including MSP430F2254IDAR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2254IDAR requirements.
6.How does Aetrix verify that MSP430F2254IDAR is sourced from the original manufacturer or authorized distributors?
All MSP430F2254IDAR 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 MSP430F2254IDAR meets industry standards.
7.What is the process for return or replacement of MSP430F2254IDAR?
All MSP430F2254IDAR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2254IDAR, 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 MSP430F2254IDAR part is unused and in its original packaging.
Return procedure for MSP430F2254IDAR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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