MSP430F149IPMG4 - 8MHz 16-Bit Ultra-Low-Power MCU | TI
MPN： MSP430F149IPMG4 ✓ 啟用中MSP430F149IPMG4 概覽
A microcontroller is a programmable system-on-chip that integrates a CPU, memory, and peripherals to control a product. The MSP430F149 belongs to the MSP430 family of 16-bit RISC mixed-signal microcontrollers, combining digital processing with ADC and comparator functions. This device hierarchy places it between general-purpose embedded processors and simple peripheral controllers, making it suitable for instrumentation, sensing, communications, and low-power products.
Key features include 8 MHz maximum clock operation, 60 KB Flash, 2 KB SRAM, 12-bit ADC, comparator, SPI, UART, 22 I/O ports, and five power-saving modes. The verified power figures include 280 uA active current at 1 MHz and 2.2 V, 1.6 uA standby current, and 0.1 uA off current with RAM retention. These characteristics support designs that spend substantial time waiting for events while still handling periodic control and measurement tasks.
The MSP430 architecture uses a 16-bit RISC CPU with 16-bit registers and constant generators for code efficiency. Its mixed-signal peripherals allow an application to digitize analog inputs and compare signals without requiring a separate ADC or comparator. The 1.8 V to 3.6 V operating range also suits battery-powered and industrial embedded equipment, provided the design observes the device's electrical and timing limits.
Typical applications include low-power sensor nodes, industrial measurement systems, battery-operated instruments, UART-connected controllers, SPI-based data acquisition, and portable monitoring equipment. The 60 KB Flash capacity supports substantially more application code than basic controllers, while the 2 KB SRAM provides working memory for buffering and control state.
Designers should verify package pin assignments, clock setup, ADC reference configuration, and low-power transitions against the manufacturer datasheet before layout release. Keep decoupling close to the supply pins, provide a stable clock source, and confirm that the 64-LQFP footprint matches the PCB land pattern. The verified distributor data identifies the part as a 64-LQFP device, so footprint and pin-compatible replacement decisions must be based on the complete package drawing.
直接替換替代品，適用於 MSP430F149IPMG4 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： MSP430F149IPMG4 （相同外形與佔位） — 差異在於 Package, Supply Voltage Range, ADC Resolution, Flash Memory, Hardware Multiplier.
MSP430F149IPMR
✅ 直接替換聯絡詢價
查看資料表 →MSP430F149IPMRG4
✅ 直接替換聯絡詢價
查看資料表 →MSP430F1491IPMR
✅ 直接替換聯絡詢價
查看資料表 →MSP430FW425IPM
✅ 直接替換📋 參考替代品（不在目錄中）
MSP430F5329IPNR
✅ 直接替換📋 參考替代品（不在目錄中）
MSP430F149IPMG4 最大額定值與電氣特性
| Architecture | 16-bit RISC |
| 最大時脈頻率 | 8 MHz |
| Flash Memory | 60 KB |
| SRAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| ADC Resolution | 12 bit |
| Comparator | Yes |
| Serial Interfaces | SPI and UART |
| I/O Ports | 22 |
| Active Mode Current | 280 uA at 1 MHz and 2.2 V |
| Standby Mode Current | 1.6 uA |
| Off Mode Current with RAM Retention | 0.1 uA |
| Power-Saving Modes | 5 modes |
| 封裝 | 64-LQFP, 10 x 10 mm |
| 安裝類型 | Surface mount |
| Operating Range | Industrial |
| Product Type | 16-bit ultra-low-power mixed-signal microcontroller |
MSP430F149IPMG4 64-lqfp, 10 x 10 mm 腳位配置指南
MSP430F149IPMG4（64-lqfp, 10 x 10 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MSP430F149IPMG4.
請參閱 資料表 以查看完整腳位配置。
典型應用
MSP430F149IPMG4 適用於 6 應用s: Low-Power Sensor Node, Industrial Measurement Instrument, Battery-Powered Data Logger, UART-Connected Embedded Controller, SPI-Based Data Acquisition, Portable Monitoring Equipment.
Low-Power Sensor Node
The MSP430F149IPMG4 fits a low-power sensor node because it combines an 8 MHz 16-bit CPU, 60 KB Flash, 2 KB SRAM, and a 12-bit ADC in one device. Its verified 1.8 V to 3.6 V operating range supports low-voltage battery systems, while the cited 1.6 uA standby and 0.1 uA off-with-RAM-retention currents help reduce energy use between measurements. Place the MCU near the sensor input, use a stable low-noise regulator, and configure the ADC and digital I/O for the required sampling interval. Actual battery life still depends on sensor current, regulator efficiency, leakage, wake sources, and board-level peripherals.
推薦
Industrial Measurement Instrument
For industrial measurement equipment, MSP430F149IPMG4 provides a compact mixed-signal processing platform with an 8 MHz 16-bit RISC CPU, 12-bit ADC, comparator, UART, and SPI. The verified 64-LQFP 10 x 10 mm package can support dense instrument designs when its complete pinout is followed. Use the ADC for process-signal acquisition and the comparator for fast threshold or protection decisions, while UART or SPI connects to a host, display, or data logger. Keep analog inputs away from switching nodes, provide local supply bypassing, and verify input ranges, sampling time, grounding, and calibration requirements against the datasheet.
推薦
Battery-Powered Data Logger
MSP430F149IPMG4 is appropriate for a battery-powered data logger that periodically samples inputs and stores or transmits results. Its 60 KB Flash provides application-code space, 2 KB SRAM supports working buffers, and the five power-saving modes help separate long inactive periods from short active intervals. The verified active-current condition is 280 uA at 1 MHz and 2.2 V, while standby current is cited as 1.6 uA. Choose the flash write strategy carefully, protect data against power loss, and account for regulator quiescent current and sensor load. Serial logging through UART or SPI can be added when the selected interface and board-level protocol support the required data rate.
推薦
UART-Connected Embedded Controller
The MSP430F149IPMG4 can serve as an embedded controller between a host computer or service equipment and local sensors or actuators. Its verified product description includes UART support, an 8 MHz 16-bit CPU, and 2 KB SRAM, allowing protocol handling and control logic without a separate communications processor. Use the UART only within the voltage levels and timing supported by the MCU and transceiver, and define a robust reset and framing strategy for noisy industrial wiring. A transceiver such as a suitable RS-232 or RS-485 companion can extend the physical communication distance, while the MCU handles framing, status, and local decisions.
推薦
SPI-Based Data Acquisition
MSP430F149IPMG4 supports SPI-based data acquisition because the verified Texas Instruments product page identifies SPI alongside the 12-bit ADC and 16-bit MCU architecture. A sensor, ADC, display, or nonvolatile memory can share the serial bus when its electrical and timing requirements are compatible. Keep the SPI clock and data routing short, provide proper pull or termination strategies where required, and isolate high-current switching paths from sensitive analog inputs. The MCU's 60 KB Flash and 2 KB SRAM make it useful for configuration, calibration, buffering, and control code. Validate maximum SPI clock, input thresholds, chip-select behavior, and peripheral timing before production.
推薦
Portable Monitoring Equipment
The MSP430F149IPMG4 is well suited to portable monitoring equipment where low voltage, mixed-signal measurement, and compact embedded control are important. Its 12-bit ADC can digitize sensor signals, the comparator can support threshold decisions, and SPI/UART can connect to local storage or a host. The verified five power-saving modes and 1.8 V to 3.6 V supply range support duty-cycled operation. A product designer should still calculate the complete power budget, regulator losses, display load, sensor current, and enclosure thermal effects. Use a low-leakage analog front end and ensure the selected battery voltage remains within the MCU's operating range throughout discharge and load transients.
推薦
推薦產品摘要
工程參考資料，適用於 MSP430F149IPMG4 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MSP430F149IPMR | MSP430F149IPMRG4 | MSP430F1491IPMR | MSP430FW425IPM | MSP430F5329IPNR |
|---|---|---|---|---|---|---|
| Package | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) | 64-LQFP (10 x 10 mm) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
主要差異化特點
- Mixed-signal integration in one MSP430F149 device (對比MSP430F149IPMR)
- Documented low-power operating characteristics (對比MSP430F5329IPNR)
- Exact ordering identity for qualified procurement (對比MSP430F149IPMR)
- Compact 64-LQFP integration with 22 I/O ports (對比MSP430FW425IPM)
設計說明
The verified 1.8 V to 3.6 V supply range makes regulator headroom a primary design constraint. Place local bypass capacitors close to the supply and ground pins, keep the analog and digital return paths controlled, and verify startup, brownout, and load-transient behavior with the selected power-supply topology. The cited 280 uA active current at 1 MHz and 2.2 V, 1.6 uA standby current, and 0.1 uA off current with RAM retention are MCU conditions, not complete board-consumption figures. Include regulator quiescent current, sensors, pullups, LEDs, and communications hardware in the system power budget.
The device is identified as a 64-LQFP, 10 x 10 mm package. Before committing the PCB, verify the exact MSP430F149 package drawing, pin 1 orientation, pad dimensions, exposed thermal or center-pad details if applicable, and recommended land pattern. Route the ADC inputs away from digital switching edges and maintain a short return path to the device ground. Use a stable clock layout and place decoupling where the datasheet and reference layout recommend. Because the provided sources do not include a complete pin table, do not rely on the package description alone for footprint release.
Do not select a replacement solely because a distributor lists a similar clock, flash size, or LQFP package. MSP430F149IPMR, MSP430F149IPMRG4, MSP430F1491IPMR, MSP430FW425IPM, and MSP430F5329IPNR require comparison of the manufacturer ordering information, pin functions, memory map, peripheral set, timing, and electrical limits. Check reset behavior, alternate-function pins, UART and SPI routing, ADC channels, and firmware expectations. The provided cross-reference data does not establish full drop-in equivalence for every candidate, so production substitution requires datasheet review and validation testing.
For mixed-signal designs, separate the ADC and comparator paths from SPI, UART, and any switching supply nodes. Use short traces, a continuous or carefully controlled ground reference, and input filtering appropriate to the source impedance and measurement bandwidth. Place analog input protection and conditioning close to the connector or sensor while keeping digital control traces away from sensitive nodes. The 12-bit ADC is useful for embedded measurements, but practical accuracy depends on reference stability, source impedance, sampling time, layout, calibration, and noise—not only the nominal resolution.
合規資訊
The provided verified data identifies the manufacturer, operating specifications, package, and distributor availability, but does not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred.