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Texas Instruments MSP430F5509IRGZT
- Part No.:
- MSP430F5509IRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5509IRGZT.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:191
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Product details
Overview
MSP430F5509IRGZT 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 MSP430F5509IRGZT datasheet, MSP430F5509IRGZT pinout, MSP430F5509IRGZT application, or MSP430F5509IRGZT equivalent, key selection criteria include USB PHY integration, 48-pin VQFN package compatibility, LPM4.5 shutdown current (0.18 µA), real-time clock with alarm, and dual USCI support for simultaneous UART + I²C or SPI interfaces.
Technical Context
The MSP430F5509IRGZT implements a unified clock system with FLL stabilization, programmable LDO core regulation, and flexible port mapping via P4 controller-enabling dynamic reassignment of USCI_A1/USCI_B1 functions to pins P4.0–P4.5. Its USB subsystem includes integrated 3.3-V/1.8-V power rails, USB-PLL, and eight bidirectional endpoints.
It supports up to 25-MHz system clock operation, features three-channel DMA for peripheral-to-memory transfers, and delivers sub-5-µs wake-up from LPM3 standby mode using RTC or comparator events-critical for duty-cycled sensing applications requiring deterministic low-latency response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators and 25-MHz max system clock - enables efficient C-coded firmware and deterministic real-time execution. |
| Flash / RAM | 24 KB flash + 4 KB + 2 KB RAM - sufficient for USB device stack, sensor drivers, and local data buffering without external memory. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V regulators, and USB-PLL - eliminates need for external transceiver or voltage translators. |
| ADC | 10-bit SAR ADC at 200 ksps with 6 external + 2 internal input channels and window comparator - supports analog sensor acquisition and threshold-triggered wake-up. |
| Low-Power Modes | LPM4.5 draws 0.18 µA at 3 V; LPM3 draws 1.9 µA at 2.2 V with RTC active - extends battery life in multi-year deployments. |
| Timers & Peripherals | Four 16-bit timers (TA0/TA1/TA2/TB0), RTC_A with alarm, two USCI modules (A1/B1), hardware MPY32, and 3-channel DMA - enables complex timing, communication, and signal processing tasks concurrently. |
| I/O Count | 31 GPIO pins in 48-pin VQFN (RGZ) package - provides sufficient routing for USB D+/D−, crystal, sensors, and control signals in compact designs. |
Pinout & Package
VQFN-48 (RGZ) package, 7 mm × 7 mm, 0.5-mm pitch, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Timer A0 clock input / Auxiliary clock output | Provides low-frequency timing source for RTC or asynchronous peripherals; configurable as ACLK output for system synchronization. |
| P4.0–P4.5 | Port-mapped USCI signals (UCB1STE/UCA1CLK through UCA1RXD) | Dynamic remapping enables flexible interface routing - e.g., assign I²C to P4.1/P4.2 and UART to P4.4/P4.5 without PCB change. |
| PU.0/DP, PU.1/DM | USB differential data pair | Direct full-speed USB 2.0 connectivity; requires 27-Ω series resistors and proper 90-Ω differential impedance layout. |
| PUR | USB pull-up resistor control | Internal 1.5-kΩ pull-up to VBUS enables USB enumeration; controlled via USBCTL register - no external resistor needed. |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin debug interface reduces footprint vs JTAG; supports programming and real-time debugging over two wires. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB PHY + power system | Eliminates external transceiver, level shifters, and dual LDOs - reduces BOM count by ≥5 components and board area by >15 mm². |
| Port mapping controller (P4) | Enables runtime reconfiguration of USCI functions across P4.0–P4.5 - allows single firmware binary to support multiple hardware variants. |
| LPM4.5 shutdown mode | 0.18 µA consumption with full RAM retention - enables rapid wake-up (<5 µs) while preserving context during extended sleep intervals. |
| RTC with alarm and calibration | Accurate timekeeping with ±2 ppm drift compensation and interrupt-on-match - supports scheduled sensor sampling and USB suspend/resume coordination. |
| Three-channel DMA | Offloads CPU during ADC conversions, USB packet transfers, and timer captures - improves throughput and lowers active-mode current. |
Applications
| USB-Powered Sensor Node | Data Logger with RTC Wake-Up |
|---|---|
Use Scenario: Compact environmental monitor powered directly from USB bus, measuring temperature/humidity and streaming data to host PC. IC Role / Device Role / Timing Role: Primary MCU managing sensor I²C reads, ADC sampling, USB HID-class data transmission, and VBUS detection. Use Value: Integrated USB PHY and 3.3-V regulator enable direct bus power use; LPM3 with RTC allows 10-second periodic wake-up for measurement without external timer. | Use Scenario: Battery-operated field logger recording analog sensor data every 5 minutes, storing locally, and uploading via USB when connected. IC Role / Device Role / Timing Role: System controller executing timed ADC acquisitions, writing to flash, maintaining timestamped logs, and handling USB mass-storage enumeration. Use Value: 24 KB flash stores >10,000 samples; LPM4.5 mode extends CR2032 battery life beyond 2 years; RTC alarm triggers precise interval sampling. |
| Wireless Headset Bridge | Industrial USB Configuration Tool |
Use Scenario: Adapter translating proprietary wireless headset audio/control protocol to USB Audio Class (UAC) for PC compatibility. IC Role / Device Role / Timing Role: Protocol translator bridging RF SoC UART to USB audio endpoints, handling sample rate conversion and HID volume controls. Use Value: Dual USCI modules allow concurrent UART (to headset) and I²C (to codec); hardware multiplier accelerates audio scaling operations. | Use Scenario: Handheld tool for configuring industrial sensors via USB, displaying settings on OLED, and saving profiles to internal flash. IC Role / Device Role / Timing Role: Human-interface MCU driving display, reading buttons, communicating with target sensors via UART/SPI, and exposing configuration interface over USB CDC ACM. Use Value: 31 GPIO support OLED SPI interface, keypad matrix, and sensor comms; USB-PLL ensures stable 48-MHz clock for reliable CDC operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5510IRGZT | 32 KB flash (vs 24 KB), same 48-pin RGZ package, identical peripherals including USB, ADC, timers, and USCI modules. | Supports larger firmware images (e.g., USB CDC + HID composite devices) without changing PCB layout or power design. | Select when firmware size exceeds 24 KB or future-proofing for feature expansion is required. |
| MSP430F5529IPN | 64-pin LQFP package, 64 KB flash, 8 KB RAM, same USB/ADC/timer architecture but adds extra I/O (47 pins) and second ADC module. | Suitable for designs needing more GPIO, dual ADC inputs, or space for external crystal load caps and USB ESD protection. | Choose when board layout accommodates larger package and higher I/O count is needed for multi-sensor aggregation. |
Compared with MSP430F5510IRGZT, the MSP430F5509IRGZT trades 8 KB flash for identical USB functionality and pin compatibility - ideal for cost-optimized, space-constrained USB sensor nodes. Versus MSP430F5529IPN, it offers smaller footprint and lower component count at the expense of I/O and memory scalability.
Availability
MSP430F5509IRGZT is available at Aetrix Electronics and suitable for USB-connected sensor nodes, battery-powered data loggers, and industrial configuration tools requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5509IRGZT 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.
The MSP430F55xx product line targets ultra-low-power USB-enabled applications - combining mixed-signal precision, real-time responsiveness, and seamless host connectivity for portable and remote measurement systems.
FAQ
What USB speed and device classes does the MSP430F5509IRGZT support?
The MSP430F5509IRGZT supports full-speed USB 2.0 (12 Mbps) with integrated PHY and supports standard USB device classes including HID, CDC ACM, and MSC via TI's USB stack. It implements eight bidirectional endpoints and handles descriptor requests, enumeration, and suspend/resume autonomously - enabling plug-and-play operation with Windows, macOS, and Linux hosts without custom drivers.
Does the MSP430F5509IRGZT require external crystals for USB operation?
No - the MSP430F5509IRGZT uses its internal USB-PLL locked to the high-frequency XT2 oscillator (up to 32 MHz) for USB timing; an external 4–24 MHz crystal on P5.2/P5.3 is required for PLL reference, but no separate USB-specific crystal is needed. The integrated USB-PLL meets USB full-speed jitter requirements per USB 2.0 specification.
How many ADC channels are accessible on the MSP430F5509IRGZT in the 48-pin RGZ package?
The MSP430F5509IRGZT provides six external analog input channels (A0–A5 on P6.0–P6.5) and two internal sources (VeREF+ and VeREF− on P5.0/P5.1), totaling eight usable ADC inputs. All six external channels are routed to dedicated pins in the 48-pin RGZ package - no multiplexing or sharing with digital I/O is required for basic ADC use.
Can the MSP430F5509IRGZT operate from a single 3.3-V supply without external regulators?
Yes - the MSP430F5509IRGZT integrates a programmable LDO that regulates core voltage (VCORE) from a single 3.3-V DVCC supply. AVCC and VUSB rails are also internally generated from DVCC, eliminating need for external 1.8-V or 3.3-V regulators. Only DVCC, AVCC, DVSS, AVSS, and VBUS (for USB detection) require external connections.
What debug interface does the MSP430F5509IRGZT use, and what hardware is required?
The MSP430F5509IRGZT uses Spy-Bi-Wire (SBW), a two-wire debug interface accessed via RST/NMI/SBWTDIO and TEST/SBWTCK pins. No external debugger chip is needed - TI's MSP-FET or compatible tools connect directly using SBW protocol. This reduces debug footprint versus 4-wire JTAG and supports in-system programming and real-time variable inspection.
MSP430F5509IRGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-VFQFN Exposed Pad
- Series:
- MSP430F5xx
- Packaging:
- Tape & Reel (TR)
- 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:
MSP430F5509IRGZT FAQ
1.How can I place an order for MSP430F5509IRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5509IRGZT 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 MSP430F5509IRGZT reliable?
The price and inventory of MSP430F5509IRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5509IRGZT is usually 5 days.
3.What payment methods are accepted for MSP430F5509IRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5509IRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5509IRGZT?
MSP430F5509IRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5509IRGZT 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 MSP430F5509IRGZT?
For technical support, including MSP430F5509IRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5509IRGZT requirements.
6.How does Aetrix verify that MSP430F5509IRGZT is sourced from the original manufacturer or authorized distributors?
All MSP430F5509IRGZT 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 MSP430F5509IRGZT meets industry standards.
7.What is the process for return or replacement of MSP430F5509IRGZT?
All MSP430F5509IRGZT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5509IRGZT, 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 MSP430F5509IRGZT part is unused and in its original packaging.
Return procedure for MSP430F5509IRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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