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Texas Instruments MSP430F149IPAG
- Part No.:
- MSP430F149IPAG
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-TQFP
- Datasheet:
-
MSP430F149IPAG.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,175
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Product details
Overview
MSP430F149IPAG 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 - designed for battery-powered sensor systems and portable instrumentation requiring sub-µA standby current and <6 µs wake-up.
For engineers reviewing the MSP430F149IPAG datasheet, MSP430F149IPAG pinout, MSP430F149IPAG application, or MSP430F149IPAG equivalent, this page delivers verified technical context, package-specific pin mapping, real-world use cases, and validated alternative options for industrial metering, low-power sensing, and embedded control design.
Technical Context
The MSP430F149IPAG implements a 16-bit CPU with constant generators and hardware multiplier, supporting five low-power modes optimized for extended battery life. Its DCO-based clock system enables sub-6 µs wake-up from LPM3, while integrated peripherals include two independent USARTs (UART/SPI), 12-bit ADC with internal reference and autoscan, and dual 16-bit timers with shadow registers.
It features 48 general-purpose I/O pins across six ports (P1–P6), with analog inputs A0–A7 mapped to P6.0–P6.7 and dedicated peripheral functions including TBOUTH (pin 51) for PWM output disable, ADC12CLK (pin 26), and dual crystal oscillator support (XT1 on pins 8/9, XT2 on pins 52/53).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and hardware multiplier |
| Memory | 60KB + 256B flash / 2KB RAM - sufficient for complex sensor firmware with bootloader and calibration data |
| ADC | 12-bit, 8-channel, <10 µs conversion time with internal reference - supports precision analog front-end in handheld meters |
| Power Consumption | Active: 280 µA @ 1 MHz, 2.2 V; Standby: 1.6 µA; Off mode (RAM retention): 0.1 µA |
| Timers | Timer_A3 (3 capture/compare registers), Timer_B7 (7 capture/compare registers with shadow registers) |
| Communication | Two USARTs supporting UART and SPI modes - enables dual-interface connectivity (e.g., RS-232 + SPI sensor bus) |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, alkaline, or coin-cell power sources |
Pinout & Package
TQFP-64 (10 mm × 10 mm) package with exposed thermal pad (not electrically connected); 48 I/O pins, 4 power/ground terminals (DVCC/DVSS/AVCC/AVSS), and dedicated JTAG test interface (TCK/TMS/TDI/TDO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | External clock source for Timer_A; also general-purpose I/O |
| P2.6/ADC12CLK | ADC conversion clock | Drives sampling timing for 12-bit ADC - critical for consistent conversion accuracy |
| P3.5/URXD0 | USART0 receive data | Primary UART RX for host communication or sensor telemetry |
| P5.7/TBOUTH | Timer_B output high-impedance control | Simultaneously disables all Timer_B PWM outputs - essential for safe motor/solenoid shutdown |
| RST/NMI | Reset and non-maskable interrupt | Hardware reset initiation and fault-triggered emergency interrupt |
| XIN/XOUT | LFXT1 crystal oscillator input/output | Supports 32.768 kHz watch crystal for real-time clock and low-power timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current preserves battery life in always-on sensor nodes |
| Dual USART interfaces | Enables concurrent UART diagnostics and SPI sensor data acquisition without software multiplexing |
| 12-bit ADC with autoscan | Automatically sequences conversions across 8 analog channels - ideal for multi-sensor monitoring |
| Timer_B7 with shadow registers | Prevents race conditions during PWM period updates - ensures glitch-free motor control waveforms |
| On-chip comparator | Provides fast threshold detection (e.g., battery voltage monitoring) without external components |
Applications
| Smart Energy Metering | Portable Gas Detector |
|---|---|
Use Scenario: Utility-grade electricity meter with real-time voltage/current measurement, tamper detection, and optical/IR communication. IC Role / Device Role / Timing Role: Primary MCU managing ADC sampling, energy calculation, LCD display, and IR UART protocol stack. Use Value: 12-bit ADC linearity (<±1 LSB INL) and stable internal reference enable ±0.5% metering accuracy per IEC 62053. | Use Scenario: Battery-powered handheld device detecting CO, H₂S, or methane using electrochemical sensors and alarm LEDs. IC Role / Device Role / Timing Role: Sensor signal conditioner, gas concentration calculator, and low-power alert controller with wake-on-event. Use Value: Sub-µA standby current extends 2-year battery life; <6 µs wake-up ensures rapid response to hazardous gas thresholds. |
| Industrial Temperature Logger | Wireless Sensor Node Controller |
Use Scenario: DIN-rail mounted logger recording ambient temperature every 10 seconds using thermistor or RTD inputs. IC Role / Device Role / Timing Role: Precision analog front-end manager, EEPROM data logger, and RS-485 interface controller. Use Value: Integrated 12-bit ADC with built-in VMID and temperature sensor enables self-calibration and drift compensation. | Use Scenario: Sub-GHz wireless node collecting vibration, humidity, and pressure data for predictive maintenance. IC Role / Device Role / Timing Role: Sensor hub coordinating ADC reads, SPI flash storage, and RF transceiver control via USART1. Use Value: Dual USARTs allow simultaneous sensor data streaming and RF command handling - eliminating UART software arbitration. |
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 (identical 10×10 mm footprint, different land pattern) | Same functionality and pinout; differs only in package type (LQFP vs TQFP) | Select based on PCB assembly process compatibility - TQFP preferred for fine-pitch reflow; LQFP for legacy tooling |
| MSP430F148IPAG | 48KB flash / 2KB RAM; otherwise identical peripheral set and pinout | Suitable where firmware size < 48KB; no change needed for existing MSP430F149IPAG hardware | Choose when application code fits in 48KB flash - reduces cost without sacrificing I/O or timer resources |
Compared with MSP430F149IPAG, the MSP430F149IPM offers identical electrical and functional behavior in LQFP packaging, while the MSP430F148IPAG provides 12KB less flash but full peripheral compatibility - both enable drop-in substitution in most designs where memory or package constraints permit.
Availability
MSP430F149IPAG is available at Aetrix Electronics and suitable for smart metering, portable instrumentation, industrial logging, and battery-powered sensor systems requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F149IPAG 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 power efficiency and reliability.
The MSP430F14x family targets ultra-low-power embedded applications - specifically engineered for battery-operated measurement systems where sub-microamp standby current and fast wake-up are mandatory design requirements.
FAQ
What is the maximum operating frequency of the MSP430F149IPAG?
The MSP430F149IPAG operates at up to 8 MHz using its digitally controlled oscillator (DCO). With external crystals, it supports LFXT1 (up to 100 kHz) and XT2 (up to 8 MHz). The DCO achieves stable operation across 1.8–3.6 V supply, enabling full-speed execution without external clock components in many applications. This makes the MSP430F149IPAG suitable for timing-critical sensor sampling and real-time control tasks.
Does the MSP430F149IPAG support in-system programming?
Yes, the MSP430F149IPAG supports serial onboard programming via its built-in bootloader (BSL) without requiring external programming voltage. Programming is performed through UART or SPI using standard TI protocols, and code protection is enforced by a security fuse. This capability allows field firmware updates and eliminates the need for dedicated programming hardware during production or maintenance - a key advantage for deployed MSP430F149IPAG-based devices.
How many analog input channels does the MSP430F149IPAG ADC support?
The MSP430F149IPAG integrates a 12-bit ADC with 8 selectable analog input channels (A0–A7), all mapped to port P6 pins (P6.0 through P6.7). It supports internal reference (2.5 V), external reference, and temperature sensor/VMID inputs. The autoscan feature enables automatic sequencing across all enabled channels - making the MSP430F149IPAG well-suited for multi-sensor data acquisition in compact instrumentation.
Is the MSP430F149IPAG pin-compatible with other MSP430F14x devices?
Yes, the MSP430F149IPAG is fully pin-compatible with other 64-pin MSP430F14x variants in TQFP (PAG) and LQFP (PM) packages, including MSP430F148IPAG and MSP430F147IPAG. All share identical pin numbering, peripheral mappings, and power/ground assignments. This allows direct hardware reuse across models - for example, upgrading from MSP430F148IPAG to MSP430F149IPAG requires only firmware update, not PCB redesign.
What are the key power-saving modes supported by the MSP430F149IPAG?
The MSP430F149IPAG supports five low-power modes (LPM0–LPM4), with LPM3 offering 1.6 µA standby current and LPM4 delivering 0.1 µA off-mode current with RAM retention. Wake-up from LPM3 occurs in under 6 µs via interrupts or RTC events. These modes are managed by the CPU and status register, enabling aggressive energy optimization in intermittent-sensing applications - a defining characteristic of the MSP430F149IPAG architecture.
MSP430F149IPAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-TQFP
- Series:
- MSP430x1xx
- Packaging:
- Tray
- 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:
MSP430F149IPAG FAQ
1.How can I place an order for MSP430F149IPAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F149IPAG 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 MSP430F149IPAG reliable?
The price and inventory of MSP430F149IPAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F149IPAG is usually 5 days.
3.What payment methods are accepted for MSP430F149IPAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F149IPAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F149IPAG?
MSP430F149IPAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F149IPAG 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 MSP430F149IPAG?
For technical support, including MSP430F149IPAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F149IPAG requirements.
6.How does Aetrix verify that MSP430F149IPAG is sourced from the original manufacturer or authorized distributors?
All MSP430F149IPAG 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 MSP430F149IPAG meets industry standards.
7.What is the process for return or replacement of MSP430F149IPAG?
All MSP430F149IPAG units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F149IPAG, 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 MSP430F149IPAG part is unused and in its original packaging.
Return procedure for MSP430F149IPAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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