MSP430F149IRTDR - 8MHz 60KB Flash 16-Bit MCU | Texas Instruments
Référence : MSP430F149IRTDR ✓ ActifMSP430F149IRTDR Présentation
An ultra-low-power microcontroller is an embedded controller that minimizes energy consumption during active operation, standby, and retention states. In the broader device hierarchy, the MSP430F149 is a microcontroller, a mixed-signal microcontroller, and an embedded processing IC. Its combination of Flash program memory, RAM, analog conversion capability, serial interfaces, and low-power modes supports both compact control systems and portable battery-powered instrumentation.
The 60 KB Flash capacity provides room for application code, configuration data, and firmware updates. Its 2 KB SRAM supports working data, stack operations, and interrupt servicing. The 12-bit ADC enables analog measurement without requiring a separate converter, while the comparator supports threshold detection and simple signal conditioning. Two serial interfaces identified in the verified data are SPI and UART, allowing connection to sensors, displays, transceivers, and external data-acquisition equipment.
The device operates from a 1.8 V to 3.6 V supply, making it suitable for low-voltage industrial and embedded systems. The verified operating range is industrial, and the MCU provides five power-saving modes according to the supplied product data. These characteristics are particularly valuable in instruments that spend substantial time idle, such as portable meters, environmental monitors, and industrial sensing nodes.
The 64-pin VQFNP package provides access to the MCU's larger pin count and expanded peripheral set. Board-level implementation should preserve the datasheet's supply and decoupling requirements and account for exposed-pad thermal behavior where applicable. Because the supplied web results do not publish the complete RTD pin map, the pinout is conservatively reported as unavailable rather than reconstructed from memory.
This page consolidates verified manufacturer and distributor information, package details, application guidance, and procurement considerations. It also distinguishes confirmed technical facts from parameters that require the full manufacturer datasheet, helping engineers evaluate the MSP430F149IRTDR without relying on unverified generic MCU assumptions.
Alternatives de remplacement direct pour MSP430F149IRTDR — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec MSP430F149IRTDR (même facteur de forme et même empreinte) — différant par Package, Comparator, Hardware Multiplier, I/O Ports, Power-Saving Modes.
MSP430F149IRTDT
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Voir la fiche technique →MSP430F149IRTDRG4
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Voir la fiche technique →MSP430F149IRTDR Valeurs maximales et caractéristiques électriques
| Microcontroller Type | 16-bit ultra-low-power mixed-signal MCU |
| Maximum CPU Clock Speed | 8 MHz |
| Architecture | 16-bit RISC |
| Flash Memory | 60 KB |
| Additional Flash | 256 bytes |
| SRAM | 2 KB |
| ADC Resolution | 12 bits |
| Comparator | Present |
| Serial Interfaces | SPI/UART |
| Supply Voltage Range | 1.8 V to 3.6 V |
| I/O Ports | 22 |
| Boîtier | 64-pin VQFNP (RTD), 9 x 9 mm |
| Type de montage | Surface mount |
| Operating Range | Industrial |
| Power-Saving Modes | 5 |
| Statut du cycle de vie | Active |
| Number of UARTs | 2 |
| Hardware Multiplier | Present |
| Active-Mode Clock Condition | 1 MHz |
Guide de configuration des broches du MSP430F149IRTDR 64-pin vqfnp (rtd), 9 x 9 mm
Configuration des broches du MSP430F149IRTDR (boîtier 64-pin vqfnp (rtd), 9 x 9 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour MSP430F149IRTDR.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MSP430F149IRTDR convient pour 6 applications: Portable Environmental Monitoring, Industrial Sensor Acquisition, Portable Test and Measurement Instruments, Serial Communication Controller, Audio Signal Conditioning and Control, Smart Sensor Node.
Portable Environmental Monitoring
The MSP430F149IRTDR fits battery-powered environmental nodes because its 1.8 V to 3.6 V supply range, 2 KB SRAM, 12-bit ADC, and five power-saving modes support low-duty-cycle acquisition. The MCU can alternate between active sampling and low-power retention rather than running its 8 MHz RISC core continuously. Its SPI/UART interfaces support external sensors and radio modules, while the comparator can provide a direct threshold or wake-detection path. Firmware should sample the ADC through its multiplexing resources, buffer results in the 2 KB SRAM, and use a serial interface to forward measurements during brief radio-active intervals.
Recommandé
Industrial Sensor Acquisition
The MSP430F149IRTDR is appropriate for industrial sensor-conditioning systems that need a 12-bit ADC, comparator, SPI, and UART without adding a separate analog processor. Its 60 KB Flash provides room for calibration tables, filtering code, diagnostics, and protocol handling, while the 8 MHz 16-bit RISC core supports real-time digital filtering. The 22 reported I/O ports also help consolidate discrete control and serial interface functions. A practical design should condition sensor inputs against the selected 1.8 V to 3.6 V supply range and use the comparator for fast threshold events that must be handled before a full ADC conversion completes.
Recommandé
Portable Test and Measurement Instruments
The MSP430F149IRTDR suits handheld meters and field-test equipment where low standby power, local data acquisition, and compact firmware are priorities. The 12-bit ADC can acquire process or sensor signals, the comparator can implement threshold detection, and SPI or UART can connect to a display, external memory, or host computer. Its five power-saving modes allow the instrument to preserve state and avoid continuous operation. System partitioning should allocate the 60 KB Flash to application code and calibration data while treating the 2 KB SRAM as a constrained working buffer.
Recommandé
Serial Communication Controller
The MSP430F149IRTDR can serve as the central controller in a compact serial bridge or embedded communications node because the verified feature set includes SPI, UART, two UARTs, a hardware multiplier, and 22 I/O ports. Its 8 MHz CPU provides enough throughput for framing, buffering, and protocol conversion while low-power modes control consumption when the link is idle. Designers should verify the exact peripheral instance mapping and alternate-function pins for the RTD package before assigning interfaces, since the supplied web excerpts do not reproduce the complete pin table.
Recommandé
Audio Signal Conditioning and Control
The MSP430F149IRTDR can provide supervisory control around an audio signal chain because it combines a comparator, ADC, SPI, UART, and low-power modes in one MCU. The comparator can monitor a control or bias signal, while the ADC can supervise analog operating points and the serial interfaces can connect to a codec or external control device. Its low-power capability is valuable in powered speakers, amplifiers, and test equipment that spend time idle. Firmware should keep continuous audio-path processing outside the MCU and use this device for measurement, configuration, and supervisory functions.
Recommandé
Smart Sensor Node
The MSP430F149IRTDR works as a smart sensor-node controller when local analog conditioning, event detection, and low-power control are required. The 12-bit ADC supports measured inputs, the comparator can initiate an interrupt on a threshold crossing, and SPI/UART provides links to sensor and communications modules. Its five power-saving modes help separate sampling activity from idle periods, reducing energy use in distributed networks. A practical implementation should define wake sources and retention behavior early, because the 2 KB SRAM limits how much state can remain resident while the MCU is in a low-power mode.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour MSP430F149IRTDR — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | 64-pin VQFNP (RTD), 9 x 9 mm |
| Brand | Texas Instruments |
| CPU Clock Speed | 8 MHz |
| Flash Memory | 60 KB plus 256 bytes |
| SRAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC Resolution | 12 bits |
| Serial Interfaces | SPI/UART; two UARTs |
| I/O Ports | 22 |
| Power-Saving Modes | 5 |
Principaux différenciateurs
- Integrated analog and serial resources reduce external component count (vs A generic 16-bit MCU without integrated ADC and comparator)
- Substantial Flash for a 16-bit low-power MCU (vs A generic low-power MCU with substantially less program memory)
- Five low-power operating modes support duty-cycled designs (vs A continuously operating microcontroller)
- Wide low-voltage supply range (vs A device limited to a narrower 3.3 V-only operating range)
Notes de conception
Design the supply around the verified 1.8 V to 3.6 V operating range and use a regulator that supports the required peripheral current and voltage-dependent timing. Place the MCU's required bypass capacitors directly beside its supply pins, with separate local decoupling for analog and digital loads where the datasheet separates those rails. Because the supplied excerpts do not include active or standby current values, obtain those figures from the manufacturer datasheet before sizing a battery or estimating duty-cycle life.
The 64-pin VQFNP (RTD) footprint requires careful escape routing because its fine pitch limits access to inner connections. Use the manufacturer land pattern and exposed-pad recommendations verbatim, verify the PCB thermal design under reflow and worst-case ambient conditions, and route analog inputs away from high-current switching nodes. The supplied data does not expose the complete pin map, so do not infer signal assignments from an image or generic 64-pin layout; confirm every net against the official RTD pin-configuration table.
Do not treat MSP430F149IPAGR as a drop-in substitute for MSP430F149IRTDR: the verified ordering information shows a different package family. Likewise, avoid assuming that another 16-bit MCU with similar clock speed is interchangeable, because peripheral multiplexing, ADC channels, interrupt vectors, and software startup code are device-specific. When evaluating any replacement, compare the RTD land pattern, pin functions, memory map, clock configuration, analog front end, and low-power behavior rather than comparing CPU frequency alone.
The 2 KB SRAM is a significant constraint for logging, display buffering, and protocol stacks. Firmware should use the 60 KB Flash for constants and application code, apply bounded queues instead of unbounded data accumulation, and avoid copying large packet buffers between interrupts and the main loop. Use the SPI/UART hardware with interrupts or DMA-like buffering techniques where supported, and confirm peripheral capabilities in the datasheet because the supplied search excerpts provide only a high-level interface summary.
Informations de conformité
The supplied verified excerpts identify the part as active and industrial-grade but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred. The ETEI comparison page mentions RoHS and REACH, but its result is a comparison of other MSP430 devices and does not supply an explicit declaration for MSP430F149IRTDR.
