MSP430F5509IPT Overview
The MSP430F5509IPT is a low-power, 16-bit microcontroller designed for mixed-signal applications that need an integrated USB interface and compact onboard peripherals. It combines a 16-bit RISC core with on-chip flash and SRAM, multiple timers, a 12-bit ADC and a full-speed USB peripheral to reduce board count and speed time-to-market. The device targets battery-powered and USB-connected designs where power efficiency, peripheral integration and deterministic real-time control matter. For purchasing and distribution information visit IC Manufacturer.
MSP430F5509IPT Technical Specifications
| Parameter | Value |
|---|---|
| CPU | 16-bit RISC MSP430 core |
| Maximum system clock | 25 MHz |
| Flash memory | 128 KB (on-chip) |
| SRAM | 8 KB |
| Operating voltage | 1.8 V to 3.6 V |
| USB | Full-speed USB 2.0 (12 Mbps) |
| ADC | 12-bit successive-approximation ADC |
| Timers | Multiple 16-bit timers (capture/compare) |
| DMA | Peripheral DMA controller (on-chip) |
| Temperature range | -40 ??C to +85 ??C |
| Package | IPT package variant (consult datasheet for pin count) |
MSP430F5509IPT Key Features
- 16-bit MSP430 core ?? delivers compact code size and efficient integer math for tighter memory budgets compared with many 8-bit alternatives.
- Integrated USB 2.0 full-speed ?? enables direct USB connectivity without an external transceiver or host controller, reducing component count and BOM cost.
- On-chip flash and SRAM ?? 128 KB flash with 8 KB RAM supports larger firmware and runtime buffers, lowering the need for external memory.
- 12-bit ADC and timers ?? provide precise analog measurements and deterministic timing for sensor interfaces and control loops.
- Low-voltage operation ?? 1.8?C3.6 V range supports battery-operated systems and robust interfacing with common digital logic levels.
- Peripheral DMA ?? offloads data movement from the CPU for better throughput and lower active power in data-heavy tasks.
- Multiple serial interfaces ?? integrated peripherals simplify connectivity to sensors and external ICs, improving system integration.
- Industrial temperature rating ?? -40 ??C to +85 ??C supports harsher environments compared with consumer-only devices.
Typical Applications
- Battery-powered sensor nodes where low active and standby currents extend run-time and integrated USB enables firmware updates and host connectivity.
- USB peripheral devices such as data loggers or human interface devices that require a compact MCU plus full-speed USB without extra chipset.
- Portable instrumentation that needs 12-bit ADC accuracy, multiple timers and deterministic control in a small form factor with low power draw.
- Industrial control modules that require robust operating temperature, reliable on-chip memory and integrated DMA for efficient data handling.
MSP430F5509IPT Advantages vs Typical Alternatives
The device combines a 16-bit MSP430 core with integrated USB and mixed-signal peripherals, offering a smaller BOM and lower power consumption than many 32-bit MCUs in USB-enabled designs. With up to 128 KB of flash and 8 KB of SRAM on-chip, it demands fewer external components than controllers that need external memory. Its 1.8?C3.6 V tolerance and industrial temperature range make it more flexible than consumer-only parts. For designs valuing low active power and tight integration, it provides a clearer path to compact, cost-effective systems.
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MSP430F5509IPT Brand Info
The MSP430 family is produced by Texas Instruments, a global semiconductor supplier known for analog and embedded processing. This part fits the MSP430 ecosystem with vendor tools, development kits and software libraries that accelerate prototyping and production. Texas Instruments supports long-term availability and technical documentation for this product line.
FAQ
What core architecture is used?
The device uses the 16-bit MSP430 RISC core. This architecture prioritizes low-power operation, compact code density and straightforward peripheral control for embedded real-time tasks.
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Does it include USB support?
Yes, it integrates a full-speed USB 2.0 peripheral (12 Mbps). The on-chip USB module lets designs connect as USB devices or implement USB functions without external USB controller ICs.
What voltage range is supported?
Operating voltage is 1.8 V to 3.6 V. This range supports common lithium-cell battery operation and standard 3.3 V logic domains used in many industrial and portable designs.
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Is it suitable for harsh environments?
Yes, the specified temperature range is from -40 ??C to +85 ??C, making it suitable for many industrial and outdoor applications that need reliable operation across temperature extremes.
Where to find package and pin details?
Refer to the official device datasheet for exact package type, pinout and mechanical dimensions. The IPT suffix denotes a specific package variant??check the datasheet and ordering guide for precise ordering codes and mounting information.



