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Texas Instruments MSP430F5509IPT
- Part No.:
- MSP430F5509IPT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MSP430F5509IPT.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:280
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Product details
Overview
MSP430F5509IPT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller with integrated full-speed USB 2.0 PHY, 24 KB flash, 4 KB + 2 KB RAM, 10-bit ADC (6 external + 2 internal channels), two USCI modules (UART/IrDA/SPI/I²C), four 16-bit timers, RTC, hardware multiplier, and DMA - designed for battery-powered sensor systems and USB-connected data loggers.
For engineers reviewing the MSP430F5509IPT datasheet, MSP430F5509IPT pinout, MSP430F5509IPT application, or MSP430F5509IPT equivalent, key selection criteria include USB PHY integration, LPM4.5 shutdown current (0.18 µA), 48-pin LQFP package compatibility, and dual-USCI support for simultaneous UART + I²C or SPI interfaces in portable measurement systems.
Technical Context
The MSP430F5509IPT implements a unified clock system with FLL stabilization, programmable LDO core regulation, and flexible port mapping on P4 to configure USCI signal routing. Its CPUXV2 core executes instructions at up to 25 MHz with constant generators for optimized code density.
USB functionality is fully integrated with dedicated 3.3-V/1.8-V power rails, USB-PLL, and eight bidirectional endpoints - enabling host-class enumeration without external transceivers. The ADC10_A supports window comparator mode and 200 ksps sampling across eight channels with internal references (REFO, VREF+).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and 25-MHz max system clock |
| Flash / RAM | 24 KB flash program memory; 4 KB main + 2 KB USB SRAM (usable as general-purpose when USB inactive) |
| USB Interface | Full-speed (12 Mbps) USB 2.0 with integrated PHY, PLL, and dual power system (3.3 V & 1.8 V) |
| ADC | 10-bit ADC10_A with 200 ksps, 6 external + 2 internal input channels, window comparator |
| Low-Power Modes | LPM4.5 shutdown draws 0.18 µA at 3 V; wake-up from LPM3 in <5 µs |
| Timers & Peripherals | Four 16-bit timers (TA0/TA1/TA2/TB0), RTC_A, three-channel DMA, two USCI modules (A0/A1/B0/B1) |
| I/O Count | 31 GPIO pins with Schmitt-trigger inputs, configurable drive strength, and port mapping control on P4 |
Pinout & Package
LQFP-48 package (7 mm × 7 mm), thermally enhanced with exposed pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–7, 9–10, 12–13, 15–21, 22–26, 29–36, 37, 39, 41–44, 45–46, 48 | GPIO / Peripheral Multiplexed I/O | 31 programmable I/O pins supporting timer capture/compare, USCI signals, ADC inputs, and RTC functions via port mapping controller |
| 5, 8, 11, 14, 27–28, 38, 40, 47 | Power & Reference | DVCC/DVSS (digital supply), AVCC/AVSS (analog supply), VCORE (regulated core voltage), VBUS/VUSB/V18 (USB power rails), XIN/XOUT (32-kHz crystal) |
| 38 (PU.0), 40 (PU.1), 39 (PUR) | USB Physical Layer | Differential data pair (DP/DM) with integrated pull-up resistor (PUR) for USB device enumeration |
| 47 (TEST/SBWTCK), 48 (RST/NMI/SBWTDIO) | JTAG/Spy-Bi-Wire | Two-wire debug interface compatible with TI MSP-FET and standard SBW tools |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low shutdown current | 0.18 µA in LPM4.5 enables multi-year battery life in maintenance-free sensor nodes |
| Integrated USB 2.0 PHY | Eliminates external transceiver and level-shifting components, reducing BOM count and PCB area |
| Port mapping controller (P4) | Allows dynamic reassignment of USCI_A1/USCI_B1 signals to P4 pins, increasing design flexibility without layout changes |
| Hardware multiplier (MPY32) | Supports 32-bit arithmetic in single-cycle operations, accelerating FFT, filtering, and sensor fusion algorithms |
| RTC with alarm & calibration | Real-time clock operates in LPM3 with crystal or REFO source, supporting time-stamped data logging and wake-on-alarm |
Applications
| Analog Sensor Data Logger | USB-Capable Wearable Device |
|---|---|
Use Scenario: Battery-powered environmental monitor capturing temperature, humidity, and pressure at 10-second intervals. IC Role / Device Role / Timing Role: Central MCU managing ADC sampling, RTC timestamping, flash storage, and USB mass-storage-class uploads upon host connection. Use Value: LPM4.5 current (0.18 µA) extends CR2032 battery life beyond 3 years; integrated USB avoids external PHY cost and layout complexity. | Use Scenario: Compact wireless headset with analog microphone interface and USB configuration channel. IC Role / Device Role / Timing Role: Signal processor handling ADC digitization, audio preprocessing, and USB HID descriptor exchange for firmware updates. Use Value: Dual USCI modules enable concurrent UART (debug) and I²C (sensor) communication while USB handles host-side control - all within one 48-pin LQFP. |
| Industrial USB Field Instrument | Low-Power IoT Edge Node |
Use Scenario: Portable multimeter with analog front-end, LCD driver, and USB-CDC virtual COM port for PC-based calibration software. IC Role / Device Role / Timing Role: Mixed-signal controller executing precision ADC conversions, driving segment LCD via integrated peripherals, and emulating serial port over USB. Use Value: 10-bit ADC with internal reference and window comparator ensures stable measurement accuracy; USB-PLL guarantees precise 12-Mbps timing without external crystal. | Use Scenario: Smart building node aggregating occupancy, light, and CO₂ sensors before uploading via USB to gateway during scheduled maintenance windows. IC Role / Device Role / Timing Role: Low-duty-cycle aggregator entering LPM4 between 5-minute sensor reads, waking to process data, then enumerating as USB device only when host is detected. Use Value: Wake-up from LPM3 in <5 µs minimizes active time; USB enumeration completes in <100 ms, enabling rapid host handshaking and data burst transfer. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5510IPT | 32 KB flash (vs. 24 KB), same 48-pin LQFP package, identical peripheral set including USB, dual USCI, and ADC10_A | Higher flash capacity supports larger firmware images and bootloader + application separation | Select when firmware size exceeds 24 KB or future-proofing for feature expansion is required |
| MSP430F5508IPT | 16 KB flash (vs. 24 KB), otherwise identical package, pinout, and peripheral configuration | Suitable for cost-sensitive designs with smaller firmware footprints and no need for >16 KB code space | Choose for minimal viable product where flash headroom is not critical and BOM cost optimization is prioritized |
Compared with MSP430F5510IPT and MSP430F5508IPT, the MSP430F5509IPT delivers optimal balance of flash capacity (24 KB), USB integration, and 48-pin LQFP footprint - making it ideal for mid-complexity USB sensor nodes requiring reliable firmware update capability without over-provisioning memory.
Availability
MSP430F5509IPT is available at Aetrix Electronics and suitable for analog sensor data loggers, USB-connected wearables, and industrial field instruments requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F5509IPT 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 company specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and consumer applications.
The MSP430F5509IPT belongs to the MSP430F5xx ultra-low-power MCU family, engineered for precision sensing, extended battery life, and seamless USB connectivity in portable measurement systems.
FAQ
What is the maximum operating frequency of the MSP430F5509IPT?
The MSP430F5509IPT supports a maximum system clock frequency of 25 MHz, enabled by its digitally controlled oscillator (DCO) and FLL-based clock system. This allows high-speed execution of real-time tasks while maintaining ultra-low power consumption in active mode - delivering 195 µA/MHz at 8 MHz and 3 V during flash execution. The 25-MHz capability ensures sufficient headroom for USB packet processing, ADC sampling, and peripheral coordination.
Does the MSP430F5509IPT include an integrated USB transceiver?
Yes, the MSP430F5509IPT integrates a full-speed USB 2.0 physical layer (PHY), USB-PLL, and dual-voltage power system (3.3 V and 1.8 V). It requires no external USB transceiver - only passive termination (22-Ω series resistors on DP/DM) and proper VBUS detection. The integrated PUR (pull-up resistor) on the D+ line enables automatic USB device enumeration, simplifying hardware design and reducing bill-of-materials cost.
How many ADC input channels does the MSP430F5509IPT support?
The MSP430F5509IPT features the ADC10_A module with eight total input channels: six external analog inputs (A0–A5 on P6.x) and two internal sources (VeREF+ and VeREF− on P5.0/P5.1). It achieves 200 ksps sampling rate with built-in window comparator functionality, enabling threshold-triggered interrupts without CPU intervention - critical for low-power event-driven sensor monitoring.
What low-power modes are available on the MSP430F5509IPT?
The MSP430F5509IPT offers five low-power modes: LPM0–LPM4 plus LPM4.5. LPM4.5 provides the lowest power state at 0.18 µA (3 V), retaining full RAM content and enabling wake-up via RST/NMI or SBW. LPM3 draws 1.9 µA (2.2 V) with RTC, watchdog, and supervisor active. All modes support sub-5-µs wake-up latency, essential for duty-cycled sensor applications where responsiveness and energy efficiency must coexist.
Is the MSP430F5509IPT pin-compatible with other devices in the F55xx family?
Yes, the MSP430F5509IPT in the 48-pin LQFP (PT) package shares identical pinout and electrical characteristics with MSP430F5510IPT, MSP430F5508IPT, MSP430F5504IPT, and MSP430F5500IPT - all of which use the same PT package variant. This enables direct substitution within the same footprint for flash-size scaling (8–32 KB) without PCB redesign, provided peripheral usage aligns with each device's feature set (e.g., dual USCI vs. single USCI).
MSP430F5509IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- MSP430F5xx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPUXV2
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 31
- Program Memory Size:
- 24KB (24K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5509IPT FAQ
1.How can I place an order for MSP430F5509IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5509IPT 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 MSP430F5509IPT reliable?
The price and inventory of MSP430F5509IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5509IPT is usually 5 days.
3.What payment methods are accepted for MSP430F5509IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5509IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5509IPT?
MSP430F5509IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5509IPT 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 MSP430F5509IPT?
For technical support, including MSP430F5509IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5509IPT requirements.
6.How does Aetrix verify that MSP430F5509IPT is sourced from the original manufacturer or authorized distributors?
All MSP430F5509IPT 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 MSP430F5509IPT meets industry standards.
7.What is the process for return or replacement of MSP430F5509IPT?
All MSP430F5509IPT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5509IPT, 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 MSP430F5509IPT part is unused and in its original packaging.
Return procedure for MSP430F5509IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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