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Texas Instruments MSP430F149IPM
- Part No.:
- MSP430F149IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430F149IPM.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:345
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Product details
Overview
MSP430F149IPM from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 60KB flash, 2KB RAM, dual USARTs, a 12-bit ADC with 8 channels and internal reference, two 16-bit timers (Timer_A3 and Timer_B7), and hardware multiplier. It operates from 1.8 V to 3.6 V and supports five power-saving modes with sub-6 µs wake-up from standby - ideal for battery-powered sensor nodes and portable metering systems.
For engineers reviewing the MSP430F149IPM datasheet, MSP430F149IPM pinout, MSP430F149IPM application, or MSP430F149IPM equivalent, key selection considerations include its LQFP-64 package, dual UART/SPI capability, integrated ADC with autoscan, JTAG debug support, and compatibility with TI's MSP430x1xx toolchain and Code Composer Studio.
Technical Context
The MSP430F149IPM implements a 16-bit CPU with constant generators and 16-bit registers for optimized code efficiency in low-power embedded control. Its clock system includes DCO, ACLK, SMCLK, and two crystal oscillators (LFXT1 and XT2), enabling flexible timing across operating modes.
Peripherals are tightly coupled via the MAB/MDB bus architecture: the 12-bit ADC12 supports external or internal reference, sample-and-hold, and autoscan; Timer_B7 provides seven capture/compare registers with shadow registers for glitch-free PWM; and dual USARTs support simultaneous asynchronous UART and synchronous SPI operation on separate channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and constant generators for high code density |
| Flash / RAM | 60KB + 256B flash memory with 2KB RAM - sufficient for complex sensor fusion or protocol stack implementation |
| ADC | 12-bit ADC with 8 input channels, <10 µs conversion time, internal reference, and autoscan - enables multi-sensor acquisition without CPU intervention |
| Timers | Timer_A3 (3 CC registers) and Timer_B7 (7 CC registers with shadow registers) - supports precise PWM generation and input capture for motor control or timing-critical I/O |
| Communication | Dual USARTs (USART0 and USART1), each configurable as UART or SPI - allows concurrent serial communication with host MCU and peripheral sensors |
| Power Modes | Five low-power modes including LPM3 (1.6 µA standby) and LPM4 (0.1 µA RAM retention) - extends battery life in intermittent-sampling applications |
| Supply Range | 1.8 V to 3.6 V operation - compatible with single-cell Li-ion, Li-poly, or dual-cell alkaline battery systems |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage | Primary digital power rail; requires local 100 nF decoupling to DVSS |
| AVCC (Pin 64) | Analog supply voltage | Independent analog rail for ADC and comparator; must be filtered separately from DVCC |
| RST/NMI (Pin 58) | Reset and 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 | Full 4-wire JTAG for debugging, programming, and fuse configuration |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.7, P6.0–P6.7 | General-purpose I/O ports | 48 total GPIO pins with interrupt capability; P6.x dedicated as ADC analog inputs A0–A7 |
| ADC12CLK (Pin 26) | ADC conversion clock | Configurable clock source for ADC timing; critical for achieving <10 µs conversion |
| URXD0/UTXD0 (Pins 33/32) | USART0 UART interface | Asynchronous receive/transmit pair for primary serial communication link |
| URXD1/UTXD1 (Pins 35/34) | USART1 UART interface | Second independent UART channel - enables dual-host connectivity or modem-backchannel |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low active current | 280 µA at 1 MHz / 2.2 V - reduces average power in duty-cycled sensor firmware |
| Fast wake-up from LPM3 | <6 µs - enables rapid response to external interrupts while maintaining µA-level sleep current |
| Hardware multiplier | 16×16-bit signed/unsigned multiply in one cycle - accelerates filtering, FFT, or encryption routines |
| On-chip comparator | Comparator_A with programmable hysteresis - supports zero-crossing detection or threshold monitoring without ADC overhead |
| Programmable security fuse | Code protection via blown security fuse - prevents unauthorized read-out of flash contents in deployed devices |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meters performing periodic sampling, data logging, and RF transmission. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing real-time clock, driving LCD, and handling secure communication protocols. Use Value: 60KB flash stores firmware + calibration tables; dual USARTs interface with metrology ADC and sub-GHz transceiver; LPM3 enables >10-year battery life. | Use Scenario: Wireless temperature/humidity/pressure node in factory automation or predictive maintenance systems. IC Role / Device Role / Timing Role: Signal acquisition hub aggregating analog sensor outputs, performing local preprocessing, and scheduling BLE/Zigbee transmissions. Use Value: 12-bit ADC with autoscan acquires 8 sensors sequentially; hardware multiplier enables fast FIR filtering; 2KB RAM buffers burst samples before transmission. |
| Portable Handheld Tester | Low-Power Data Logger |
Use Scenario: Field-deployable multimeter or insulation tester requiring long runtime, button interface, and display control. IC Role / Device Role / Timing Role: System-on-chip managing analog front-end, keypad scanning, segment LCD driver, and USB/UART bridge. Use Value: Integrated comparator replaces external op-amp for continuity testing; dual USARTs support both PC comms and optional Bluetooth module; 48 GPIO drive buttons and LCD segments directly. | Use Scenario: Environmental monitoring logger placed in remote locations (e.g., agriculture, infrastructure) collecting temperature, light, and humidity over weeks. IC Role / Device Role / Timing Role: Autonomous data acquisition engine with RTC-triggered sampling, flash-based circular buffer, and wake-on-interrupt event handling. Use Value: 0.1 µA off-mode preserves battery during idle periods; internal DCO ensures accurate timing without external crystal; ADC internal reference eliminates need for precision external VREF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F148IPM | 48KB flash, same 2KB RAM, identical peripherals and pinout | Suitable where firmware size ≤48KB; no change in PCB or software porting effort | Select when application code fits within 48KB and cost optimization is prioritized |
| MSP430F1491IPM | Same 60KB flash/2KB RAM but uses VQFN-64 (9×9 mm); lacks XT2 oscillator circuitry | Better suited for space-constrained designs; incompatible with high-frequency crystal requirements (>1 MHz) | Choose for compact layouts where XT2 is unused and thermal pad soldering is feasible |
Compared with MSP430F148IPM, the MSP430F149IPM offers 12KB more flash for larger firmware or field-upgradable features; compared with MSP430F1491IPM, it retains full XT2 support for higher-precision clocking and wider frequency range in communication interfaces.
Availability
MSP430F149IPM is available at Aetrix Electronics and suitable for smart metering, industrial sensing, handheld instrumentation, and environmental data logging requiring stable component supply and long-term manufacturability.
Supply support for MSP430F149IPM 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 reliability.
The MSP430F149IPM belongs to the MSP430x1xx ultra-low-power MCU family, designed specifically for battery-operated measurement and control applications where extended runtime, precision analog integration, and robust debug capability are essential.
FAQ
What is the maximum operating frequency of the MSP430F149IPM?
The MSP430F149IPM does not have a fixed maximum clock frequency rating; instead, its DCO can be calibrated up to approximately 8 MHz under typical conditions. The device achieves a 125-ns instruction cycle time, supporting effective execution at up to 8 MIPS. Actual achievable frequency depends on supply voltage, temperature, and DCO calibration - refer to Section 5.18 of the SLAS272H datasheet for DCO frequency vs. VCC curves.
Does the MSP430F149IPM support in-system programming without external voltage?
Yes, the MSP430F149IPM supports serial onboard programming (SBP) via its built-in bootloader (BSL) using only the standard supply voltage (1.8–3.6 V). No external programming voltage is required. Programming is performed through UART or SPI using the BSL interface, and code protection is enforced by a one-time programmable security fuse that disables further BSL access after blowing.
How many analog input channels does the MSP430F149IPM ADC support?
The MSP430F149IPM integrates a 12-bit ADC12 module with eight selectable analog input channels (A0–A7), mapped exclusively to P6.0 through P6.7. These inputs support single-ended or differential acquisition, internal reference (1.5 V or 2.5 V), external reference, and autoscan mode - enabling continuous multi-channel sampling without CPU involvement.
Is the MSP430F149IPM pin-compatible with other MSP430F14x devices?
Yes, the MSP430F149IPM in the LQFP-64 (PM) package is fully pin-compatible with MSP430F147IPM and MSP430F148IPM in the same package variant. All share identical pin functions, electrical characteristics, and peripheral mappings - allowing direct substitution in existing designs when flash/RAM requirements align.
What debug interfaces are supported by the MSP430F149IPM?
The MSP430F149IPM supports full 4-wire JTAG (TCK, TMS, TDI, TDO) for emulation, flash programming, and real-time debugging via tools like MSP-FET or eZ430-RF2500. It also supports Spy-Bi-Wire (2-wire JTAG subset) for reduced pin count debugging. Both interfaces provide full visibility into CPU state, memory, and peripherals during development and validation.
MSP430F149IPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x1xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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:
MSP430F149IPM FAQ
1.How can I place an order for MSP430F149IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F149IPM 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 MSP430F149IPM reliable?
The price and inventory of MSP430F149IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F149IPM is usually 5 days.
3.What payment methods are accepted for MSP430F149IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F149IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F149IPM?
MSP430F149IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F149IPM 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 MSP430F149IPM?
For technical support, including MSP430F149IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F149IPM requirements.
6.How does Aetrix verify that MSP430F149IPM is sourced from the original manufacturer or authorized distributors?
All MSP430F149IPM 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 MSP430F149IPM meets industry standards.
7.What is the process for return or replacement of MSP430F149IPM?
All MSP430F149IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F149IPM, 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 MSP430F149IPM part is unused and in its original packaging.
Return procedure for MSP430F149IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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