MSP430F149IPMRG4 - 8MHz 16-Bit MCU with 60KB Flash | Texas Instruments
MPN: MSP430F149IPMRG4 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.3141 | $6.31 |
| 10 | $6.3141 | $63.14 |
| 100 | $6.3141 | $631.41 |
| 500 | $6.3141 | $3,157.05 |
| 1,000 | $6.3141 | $6,314.10 |
MSP430F149IPMRG4 Overview
What is a mixed-signal microcontroller? A mixed-signal MCU combines a digital processor with analog and communication peripherals on one integrated device. The MSP430F149 belongs to the MSP430 family of 16-bit RISC microcontrollers and sits within the broader hierarchy of embedded processors, microcontrollers, and semiconductor devices. Its mixed-signal architecture lets embedded products measure analog inputs, process control logic, and communicate with external peripherals without requiring several discrete components.
Key features include an 8 MHz MSP430 CPU, 60 KB Flash plus 256 bytes of additional Flash storage as shown in the distributor data, 2 KB SRAM, 22 I/O ports, a 12-bit ADC, two USARTs, SPI, and a hardware multiplier. According to Texas Instruments, the MSP430F14x devices include two built-in 16-bit timers and 48 I/O pins at the device-family level, while the specific ordering information identifies the MSP430F149IPMRG4 as a 64-LQFP industrial-temperature part.
The 16-bit RISC architecture, constant generators, and hardware multiplier improve code efficiency and arithmetic throughput for control applications. The 12-bit ADC supports embedded measurement systems, while the two USARTs provide serial connectivity for sensors, displays, data acquisition equipment, and industrial peripherals. The device also supports low-power modes for battery-operated and energy-conscious products.
Typical applications include industrial instrumentation, sensor acquisition, motor and process control, embedded data loggers, communications equipment, low-power measurement systems, and compact control platforms. Its combination of local memory, analog conversion, timers, and serial interfaces makes it suitable for designs that need standalone mixed-signal control rather than a larger application processor.
When designing a PCB around the MSP430F149IPMRG4, preserve the exposed-package thermal and electrical requirements, follow the manufacturer's recommended decoupling and layout guidance, and verify signal compatibility for every peripheral connection. Use the datasheet for the complete 64-pin pinout, electrical limits, clock configuration, and programming details.
Drop-in alternatives for MSP430F149IPMRG4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MSP430F149IPMRG4 (same form factor and footprint) — differing in Package, Hardware Multiplier, Supply Voltage Range, ADC Resolution, Flash Memory.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesMSP430F149IPMRG4 Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit ultra-low-power mixed-signal microcontroller |
| CPU Architecture | 16-bit RISC |
| Maximum Clock Speed | 8 MHz |
| Flash Memory | 60 KB |
| Additional Flash Storage | 256 bytes |
| SRAM | 2 KB |
| ADC Resolution | 12-bit |
| USART Count | 2 |
| Serial Interface | SPI |
| Hardware Multiplier | Yes |
| I/O Ports | 22 |
| Device-Family I/O Pins | 48 |
| Timer Count | 2 built-in 16-bit timers |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Package | 64-LQFP (10 x 10 mm) |
| Mounting Type | Surface mount |
| Operating Temperature Range | -40 C to +85 C |
| Low-Power Modes | 5 low-power modes |
MSP430F149IPMRG4 64-lqfp (10 x 10 mm) Pin Configuration Guide
Pin configuration for MSP430F149IPMRG4 (64-lqfp (10 x 10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MSP430F149IPMRG4.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430F149IPMRG4 is suitable for 6 applications: Industrial Sensor Acquisition, Low-Power Data Logger, Process and Motor Control, Communications Equipment, Portable Measurement Instrument, Battery-Powered Sensor Node.
Industrial Sensor Acquisition
MSP430F149IPMRG4 fits industrial sensor acquisition because its 12-bit ADC can digitize analog measurements while the 8 MHz 16-bit CPU handles filtering, scaling, and control state. The two USARTs allow connection to a local transceiver or service port, and SPI can support a sensor or storage peripheral. In a 64-LQFP, 1.8 V to 3.6 V design, engineers should define input scaling and protection before routing sensor voltages to the ADC pins.
Recommended
Low-Power Data Logger
The ultra-low-power MSP430F149IPMRG4 is appropriate for a periodic data logger that wakes to sample sensors, stores measurements, and returns to a low-power state. Its five low-power modes, 2 KB SRAM, 60 KB Flash, and two USARTs support local buffering and serialized transfer. Firmware must define sleep entry, peripheral shutdown, wake sources, and retention requirements; battery life should be calculated from the actual sampling interval and current measurement rather than a nominal device label.
Recommended
Process and Motor Control
MSP430F149IPMRG4 can serve as the local controller in a process-control or actuator-monitoring platform because it combines two built-in 16-bit timers, a hardware multiplier, 22 I/O ports, and a 12-bit ADC. Timers can establish sampling and output timing, while the ADC can monitor feedback from a sensor. The 8 MHz CPU is suitable for deterministic control loops, but motor-drive isolation, gate-driver timing, surge protection, and thermal margins require separate design verification.
Recommended
Communications Equipment
For a compact communications endpoint, MSP430F149IPMRG4 provides two USARTs plus SPI in a low-power 16-bit architecture. One serial channel can serve a local host while another handles a sensor, radio, or field interface, with SPI available for higher-speed peripheral connections. The 60 KB Flash and 2 KB SRAM support protocol and buffering firmware, but baud-rate tolerance, interrupt latency, line-driver electrical levels, and EMI layout must be verified in the system design.
Recommended
Portable Measurement Instrument
MSP430F149IPMRG4 supports portable measurement equipment that needs analog acquisition, local computation, and low standby consumption. Its 12-bit ADC handles sensor conditioning results, while the 16-bit CPU can calculate compensated readings before transmission through a USART. The 1.8 V to 3.6 V supply range helps integrate with low-voltage sensors and portable power systems, although calibration, reference stability, battery regulation, and analog grounding remain board-level responsibilities.
Recommended
Battery-Powered Sensor Node
The MSP430F149IPMRG4 is suitable for a battery-powered sensor node that periodically reads an analog value and reports it through a serial interface. Its low-power architecture, five power-saving modes, 8 MHz processing capability, and 2 KB SRAM allow computation without a separate processor. Use the low-power modes intentionally, disable unused peripherals, and validate wake-up timing and current draw with the final sensor load; software defaults alone do not guarantee a battery-life target.
Recommended
Recommended Products Summary
Engineering reference data for MSP430F149IPMRG4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430F149IPMR | MSP430F148IPM | MSP430F1491IPMR | MSP430F249TPMR |
|---|---|---|---|---|---|
| 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) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Key Differentiators
- Verified 60 KB Flash and 2 KB SRAM configuration (vs MSP430F249TPMR)
- Two USARTs plus SPI in a mixed-signal MCU (vs MSP430F148IPM)
- 8 MHz processing with hardware multiplier (vs MSP430F1491IPMR)
Design Notes
The verified operating range is 1.8 V to 3.6 V. Validate the supply source, startup behavior, decoupling, and voltage tolerance against the current TI datasheet before connecting peripherals. Keep analog and digital return currents controlled, especially when the ADC is active. If the design includes a switching regulator, separate its noise path from the MCU and ADC references, and verify the rail during wake-up transitions.
Use the manufacturer's 64-LQFP land pattern and pin numbering as the PCB authority. Place required decoupling capacitors close to the device power pins and provide short, low-loop-area connections for the ADC, oscillator, reset, and programming interface. Confirm whether the exact package requires an exposed pad and thermal-via treatment; the supplied search results identify the package but do not provide the complete package drawing.
Do not assume that every MSP430 family member is a drop-in replacement. The cross-reference results mention MSP430F149IPMR, MSP430F148IPM, MSP430F1491IPMR, and MSP430F249TPMR, but the supplied data does not verify every pin, memory, timer, ADC, and software-model difference. Compare the exact suffix, package drawing, electrical characteristics, and firmware assumptions before releasing a substitution.
Compliance Information
Compliance fields are unknown because the verified web data does not provide authoritative statements for this exact ordering code. The industrial temperature range is identified in the distributor data, but temperature range alone does not establish AEC-Q100 qualification.
