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Texas Instruments MSP430F149IPAGR
- Part No.:
- MSP430F149IPAGR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-TQFP
- Datasheet:
-
MSP430F149IPAGR.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,549
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Product details
Overview
MSP430F149IPAGR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 60KB flash, 2KB RAM, 12-bit ADC (8-channel), dual USARTs, Timer_A3/Timer_B7, and on-chip comparator. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling sub-6 µs wake-up - ideal for battery-powered sensor nodes and portable metering systems.
For engineers reviewing the MSP430F149IPAGR datasheet, MSP430F149IPAGR pinout, MSP430F149IPAGR application, or MSP430F149IPAGR equivalent, key selection criteria include its 64-pin TQFP package, dual UART/SPI capability, integrated 12-bit ADC with internal reference, 48 GPIOs, and JTAG debug support for embedded control in resource-constrained environments.
Technical Context
The MSP430F149IPAGR implements a 16-bit CPU with constant generators and hardware multiplier, optimized for code efficiency in low-power embedded applications. Its clock system includes DCO, ACLK, SMCLK, and MCLK domains, with support for LFXT1 (watch crystal) and XT2 (high-frequency crystal) oscillators.
It integrates two independent serial interfaces (USART0 and USART1), each configurable as asynchronous UART or synchronous SPI, plus a 12-bit ADC with sample-and-hold, autoscan, and temperature sensor. The device uses a unified memory-mapped peripheral architecture accessible via standard load/store instructions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and hardware multiplier |
| Flash / RAM | 60KB + 256B flash memory, 2KB RAM - sufficient for complex sensor firmware with data logging |
| ADC | 12-bit, 8-channel, <10 µs conversion time with internal reference - enables high-resolution analog sensing without external components |
| Timers | Timer_A3 (3 capture/compare registers), Timer_B7 (7 capture/compare with shadow registers) - supports PWM generation and precise timing control |
| Serial Interfaces | Two USARTs (UART/SPI mode) - allows simultaneous host communication and peripheral bridging |
| Power Modes | Five low-power modes; standby current 1.6 µA, off-mode RAM retention 0.1 µA - extends battery life in intermittent-sensing applications |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, LiFePO₄, or dual-cell alkaline systems |
Pinout & Package
TQFP-64 (10 mm × 10 mm) package with exposed thermal pad (not electrically connected); RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage | Primary digital power rail (1.8–3.6 V); requires local decoupling near pin |
| AVCC (Pin 64) | Analog supply voltage | Separate analog domain supply; must be filtered independently from DVCC for ADC accuracy |
| RST/NMI (Pin 58) | Reset / non-maskable interrupt | Active-low reset input; also serves as NMI source and BSL entry trigger |
| TCK/TMS/TDI/TDO (Pins 57,56,55,54) | JTAG test interface | Standard 4-wire JTAG for programming, debugging, and fuse configuration |
| P1.0–P6.7 (48 pins) | General-purpose I/O | Configurable digital I/O with interrupt capability; P6.x doubles as ADC inputs A0–A7 |
| USART0/1 (P3.x, P5.x) | Serial communication | Dual full-duplex UART/SPI ports - enables concurrent sensor telemetry and local bus interfacing |
| XIN/XOUT (Pins 8–9) | LFXT1 oscillator | Connects to 32.768 kHz watch crystal for real-time clock and low-power ACLK generation |
| XT2IN/XT2OUT (Pins 53–52) | XT2 oscillator | Supports up to 8 MHz crystal for high-speed SMCLK/MCLK operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power active mode | 280 µA at 1 MHz, 2.2 V - minimizes energy per instruction in duty-cycled operation |
| Fast wake-up from LPM3 | <6 µs - enables rapid response to external events while maintaining µA-level sleep current |
| Integrated 12-bit ADC with autoscan | Automatically sequences across 8 channels without CPU intervention - reduces firmware overhead in multi-sensor systems |
| On-chip comparator with hysteresis | Provides threshold detection and window monitoring without external op-amps or comparators |
| Bootloader (BSL) with UART | Allows field firmware updates via USART0 without JTAG hardware - simplifies maintenance in deployed devices |
| Programmable code protection | Security fuse prevents unauthorized read-out of flash contents - protects IP in production units |
Applications
| Smart Utility Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meters collecting consumption data hourly and transmitting via NB-IoT or LoRaWAN. IC Role / Device Role / Timing Role: Main controller managing ADC sampling, real-time clock, secure data storage, and low-power radio interface timing. Use Value: 0.1 µA off-mode current preserves 10+ year battery life; dual USARTs enable simultaneous metrology sensor interface and modem control. | Use Scenario: Wireless vibration/temperature/pressure sensor node mounted on rotating machinery in factory automation. IC Role / Device Role / Timing Role: Signal acquisition hub performing synchronized multi-channel sampling, FFT preprocessing, and event-triggered transmission. Use Value: 12-bit ADC with autoscan captures 8 analog inputs per wake-up; Timer_B7 generates precise PWM for self-test excitation signals. |
| Portable Handheld Tester | Low-Power Environmental Monitor |
Use Scenario: Field technician tool measuring voltage, current, resistance, and continuity with LCD display and USB/Bluetooth connectivity. IC Role / Device Role / Timing Role: Central MCU handling analog front-end control, button interface, display driver, and serial protocol translation. Use Value: Integrated comparator and ADC eliminate discrete signal conditioning; 48 GPIOs support flexible peripheral expansion and keypad scanning. | Use Scenario: Solar-powered air quality station logging CO₂, PM2.5, humidity, and temperature every 5 minutes in remote locations. IC Role / Device Role / Timing Role: Power-aware data logger coordinating sensor polling, SD card writes, and RF transmission during solar charge cycles. Use Value: Five power modes allow dynamic adaptation - deep sleep between samples, fast wake for ADC conversion, and burst-mode radio transmit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F149IPM | LQFP-64 package (same footprint, different thermal pad design); identical electrical specs and pinout | No functional difference; selected when board layout requires LQFP mechanical compatibility | Drop-in replacement if PCB land pattern matches LQFP-64 mechanical dimensions and solder mask definition |
| MSP430F1491IRTD | VQFN-64 (9 mm × 9 mm), no exposed thermal pad; same core peripherals but different package thermal performance | Better suited for space-constrained designs where height and footprint are critical over thermal dissipation | Choose when board area is limited and thermal load remains below 150 mW; verify reflow profile for VQFN |
Compared with MSP430F149IPM and MSP430F1491IRTD, the MSP430F149IPAGR offers identical functionality in a TQFP package optimized for manual inspection and rework, with balanced thermal performance and industry-standard footprint compatibility - making it preferred for prototyping and medium-volume industrial deployments.
Availability
MSP430F149IPAGR is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, handheld testers, and environmental monitors requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F149IPAGR 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 MSP430F149IPAGR belongs to TI's MSP430F1xx ultra-low-power MCU family, designed specifically for battery-operated measurement and control applications where energy efficiency, integration, and reliability are critical.
FAQ
What is the maximum operating frequency of the MSP430F149IPAGR?
The MSP430F149IPAGR supports a maximum system clock (MCLK) frequency of 8 MHz when using the XT2 oscillator. Its DCO can be calibrated to run up to ~4.6 MHz in internal mode, and the CPU executes instructions at 125 ns per cycle - enabling deterministic real-time response in time-critical embedded tasks. The actual achievable frequency depends on supply voltage and temperature conditions specified in the datasheet's recommended operating conditions.
Does the MSP430F149IPAGR support in-system programming without external hardware?
Yes, the MSP430F149IPAGR includes a built-in bootloader (BSL) accessible via UART using USART0. This allows firmware updates directly through a serial interface without JTAG hardware, provided the BSL fuse remains unblown. The BSL supports commands for mass erase, memory read/write, and password-protected access - enabling field upgrades and manufacturing programming flexibility for the MSP430F149IPAGR.
How many ADC input channels does the MSP430F149IPAGR have, and what is their resolution?
The MSP430F149IPAGR features a 12-bit successive-approximation ADC with eight external input channels (A0–A7 mapped to P6.0–P6.7). It supports internal reference voltages (1.5 V or 2.5 V), external reference inputs (VeREF+, VREF−), and a built-in temperature sensor. Conversion time is under 10 µs, and the autoscan function enables automatic sequencing across all enabled channels without CPU intervention - a key capability of the MSP430F149IPAGR.
Can the MSP430F149IPAGR operate from a single 3.3 V supply?
Yes, the MSP430F149IPAGR operates across a supply range of 1.8 V to 3.6 V, making 3.3 V fully compliant. At 3.3 V, it delivers optimal noise margin and ADC performance while remaining within absolute maximum ratings. Both DVCC and AVCC must be supplied at the same nominal voltage, with separate filtering recommended to maintain analog accuracy - a standard practice for robust MSP430F149IPAGR deployment.
What debug interface does the MSP430F149IPAGR use, and is it compatible with common tools?
The MSP430F149IPAGR uses the standard 4-wire JTAG interface (TCK, TMS, TDI, TDO) for debugging and programming. It is fully compatible with TI's MSP-FET430UIF, MSP-FET, and third-party tools supporting IEEE 1149.1 JTAG. The interface supports full-speed execution control, register inspection, flash programming, and security fuse management - ensuring seamless development and validation workflows for the MSP430F149IPAGR.
MSP430F149IPAGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-TQFP
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 60KB (60K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F149IPAGR FAQ
1.How can I place an order for MSP430F149IPAGR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F149IPAGR 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 MSP430F149IPAGR reliable?
The price and inventory of MSP430F149IPAGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F149IPAGR is usually 5 days.
3.What payment methods are accepted for MSP430F149IPAGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F149IPAGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F149IPAGR?
MSP430F149IPAGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F149IPAGR 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 MSP430F149IPAGR?
For technical support, including MSP430F149IPAGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F149IPAGR requirements.
6.How does Aetrix verify that MSP430F149IPAGR is sourced from the original manufacturer or authorized distributors?
All MSP430F149IPAGR 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 MSP430F149IPAGR meets industry standards.
7.What is the process for return or replacement of MSP430F149IPAGR?
All MSP430F149IPAGR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F149IPAGR, 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 MSP430F149IPAGR part is unused and in its original packaging.
Return procedure for MSP430F149IPAGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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