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Texas Instruments MSP430F5503IRGZT
- Part No.:
- MSP430F5503IRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5503IRGZT.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:730
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Product details
Overview
MSP430F5503IRGZT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated full-speed USB 2.0 PHY, three 16-bit timers (TA0/TA1/TA2 and TB0), one USCI module supporting UART/IrDA/SPI/I²C, comparator (no ADC), 32 KB flash, 4 KB + 2 KB RAM, and 31 I/O pins in a 48-pin VQFN package. It operates from 1.8 V to 3.6 V and targets battery-powered sensor interfaces and USB-connected data loggers.
For engineers reviewing the MSP430F5503IRGZT datasheet, MSP430F5503IRGZT pinout, MSP430F5503IRGZT application, or MSP430F5503IRGZT equivalent, key selection criteria include USB PHY integration, comparator-only analog front-end, 48-pin RGZ package compatibility, LPM4.5 shutdown current (0.18 µA), and absence of 10-bit ADC - distinguishing it from ADC-equipped F550x variants.
Technical Context
The MSP430F5503IRGZT implements a 16-bit RISC CPU with constant generators and unified clock system featuring FLL, VLO, REFO, XT1 (32 kHz), and XT2 (up to 32 MHz). Its power management includes an integrated LDO with programmable core voltage, supply supervision, and brownout detection.
It supports USB device mode only (no host capability), with eight endpoints, integrated 3.3-V/1.8-V USB power system, and USB-PLL. The single USCI module is configurable via port mapping controller on P4 for either UART/IrDA/SPI (USCI_A) or I²C/SPI (USCI_B), but not both simultaneously in the 48-pin RGZ package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16-bit registers and hardware multiplier supporting 32-bit operations |
| Flash / RAM | 32 KB flash memory + 4 KB + 2 KB SRAM (USB SRAM usable as general-purpose when USB inactive) |
| USB Interface | Full-speed USB 2.0 device-only with integrated PHY, 3.3-V/1.8-V power system, and USB-PLL |
| Timers | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC shadow registers) |
| Analog Peripherals | Comparator_B (4-channel input), no ADC - distinguishes it from MSP430F5504–F5510 |
| Low-Power Modes | LPM4.5 shutdown draws 0.18 µA at 3 V; wake-up from LPM3 in <5 µs with RTC active |
| I/O Pins | 31 programmable I/O pins with Schmitt-trigger inputs, full/reduced drive strength, and port mapping control |
Pinout & Package
VQFN (RGZ) package, 48-pin, 7 mm × 7 mm body size, exposed thermal pad (recommended connection to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 6–7, 9–10, 12–13, 15–21, 22–26, 29–36, 38–40, 42–44, 45–48 | General-purpose I/O (P1–P6, PJ, PU) | Configurable digital I/O with interrupt capability; P4 pins support USCI signal remapping |
| 5, 8, 11, 14, 27–28, 37, 41 | Power/ground (AVCC1, AVSS1, DVCC1, DVSS1, VCORE, DVSS2, DVCC2, VSSU, VBUS, VUSB, V18, AVSS2) | Dual-domain supply: AVCC/AVSS for analog, DVCC/DVSS for digital, VUSB/V18 for USB PHY, VCORE for regulated core |
| 38 (PU.0), 40 (PU.1), 39 (PUR) | USB differential pair + pull-up resistor | DP/DM signals for full-speed USB device interface; PUR enables USB enumeration via internal 1.5-kΩ pull-up |
| 47 (TEST/SBWTCK), 64 (RST/NMI/SBWTDIO), 60–63 (PJ.0–PJ.3) | JTAG/Spy-Bi-Wire debug interface | Supports programming and debugging via 4-wire JTAG or 2-wire SBW; PJ pins serve as TDO/TDI/TMS/TCK |
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 PHY | Eliminates external transceiver and reduces BOM cost/PCB area for USB-connected peripherals |
| Port mapping controller | Allows dynamic assignment of USCI functions to P4 pins, increasing design flexibility without hardware change |
| RTC with alarm | Real-time clock runs in LPM3 with crystal oscillator, enabling time-stamped data logging during sleep |
| Three-channel DMA | Enables autonomous peripheral-to-memory transfers, reducing CPU load and power consumption during data acquisition |
Applications
| USB Sensor Node | Industrial Data Logger |
|---|---|
Use Scenario: Compact environmental sensor (temperature/humidity/pressure) connected directly to PC or industrial gateway via USB cable. IC Role / Device Role / Timing Role: Main MCU handling sensor readout, signal conditioning via comparator, USB packetization, and low-power scheduling. Use Value: Integrated USB PHY and 0.18 µA shutdown eliminate external transceiver and extend battery life beyond 5 years in intermittent-read applications. | Use Scenario: Standalone battery-powered logger recording voltage/current waveforms from machinery over weeks. IC Role / Device Role / Timing Role: Timekeeping MCU with RTC alarm triggering periodic sampling, comparator-based threshold detection, and USB mass-storage-class data dump. Use Value: LPM3 RTC operation (1.9 µA) and fast wake-up (<5 µs) minimize energy per sample, while 32 KB flash stores >100k timestamped events. |
| USB HID Peripheral | Low-Power Test Fixture |
Use Scenario: Programmable USB keyboard/mouse/joystick emulator for factory test automation. IC Role / Device Role / Timing Role: USB HID device controller interfacing mechanical switches and LEDs via GPIO, with real-time response. Use Value: Full-speed USB device stack support and 31 GPIOs enable direct switch matrix scanning and LED feedback without external logic. | Use Scenario: Portable calibration tool verifying analog sensor outputs using reference voltages and comparator windows. IC Role / Device Role / Timing Role: Precision comparator frontend with VeREF+/- inputs, USB configuration interface, and low-power standby between tests. Use Value: Dedicated comparator_B with external reference inputs (P5.0/P5.1) provides ±0.5% threshold accuracy, while LPM4.5 ensures <1 µA quiescent draw during storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-USB applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5504IRGZT | Includes 10-bit ADC (6 external + 2 internal channels); same USB, timers, package, and memory | Required when analog signal digitization (e.g., thermistor, potentiometer) is needed alongside USB connectivity | Select MSP430F5504IRGZT if ADC functionality is mandatory; MSP430F5503IRGZT saves cost and simplifies layout where only comparator-based thresholding suffices. |
| MSP430F5529IPN | 64-pin LQFP, 128 KB flash, 8 KB RAM, dual USCI modules, 10-bit ADC, and 47 I/Os - significantly larger footprint and feature set | Suitable for complex USB hosts or systems requiring multiple serial interfaces and high memory capacity | Choose MSP430F5529IPN only when scaling beyond 31 I/Os or needing dual USCI; MSP430F5503IRGZT offers optimal fit for space-constrained USB-peripheral designs. |
Compared with MSP430F5504IRGZT, the MSP430F5503IRGZT removes the ADC to reduce cost and power while retaining identical USB, timer, and comparator capabilities - making it ideal for threshold-detection USB devices. Against MSP430F5529IPN, it trades scalability for minimal size and lower system-level BOM cost.
Availability
MSP430F5503IRGZT is available at Aetrix Electronics and suitable for USB-connected sensor nodes, industrial data loggers, HID peripherals, and low-power test fixtures requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5503IRGZT 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The MSP430F5503IRGZT belongs to the MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated measurement and USB-peripheral applications demanding sub-µA shutdown and integrated connectivity.
FAQ
Does the MSP430F5503IRGZT include an analog-to-digital converter (ADC)?
No, the MSP430F5503IRGZT does not include an ADC. It features a 4-channel comparator (COMP_B) instead - a deliberate differentiation from ADC-equipped variants like MSP430F5504IRGZT. This makes the MSP430F5503IRGZT appropriate for applications requiring threshold detection (e.g., overvoltage alerts, windowed sensor monitoring) without digitizing full analog waveforms.
What USB capabilities does the MSP430F5503IRGZT support?
The MSP430F5503IRGZT supports full-speed USB 2.0 device-mode operation only, with integrated PHY, eight endpoints, USB-PLL, and dedicated 3.3-V/1.8-V power system. It does not support USB host mode or OTG. The MSP430F5503IRGZT requires no external transceiver and enumerates as a standard USB device upon connection when PUR is enabled.
Which package and pin count does the MSP430F5503IRGZT use?
The MSP430F5503IRGZT uses a 48-pin VQFN package (RGZ variant), measuring 7 mm × 7 mm with an exposed thermal pad. This package provides 31 general-purpose I/O pins and is pin-compatible with other 48-pin MSP430F550x devices in the RGZ footprint, enabling shared PCB design across family members.
How many universal serial communication interfaces (USCI) does the MSP430F5503IRGZT have?
The MSP430F5503IRGZT includes one USCI module, configurable via port mapping on P4 to support either UART/IrDA/SPI (USCI_A) or I²C/SPI (USCI_B). Unlike higher-tier F5510/F5529 devices, it does not support simultaneous dual-USCI operation - a trade-off for reduced complexity and cost in the MSP430F5503IRGZT.
What is the lowest power-consumption mode supported by the MSP430F5503IRGZT?
The MSP430F5503IRGZT supports LPM4.5 (shutdown mode) with 0.18 µA typical current draw at 3 V, retaining full RAM retention and enabling wake-up via RST/NMI or selected I/O interrupts. This is the deepest low-power state and is critical for multi-year battery operation in intermittently active USB peripherals.
MSP430F5503IRGZT 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5503IRGZT FAQ
1.How can I place an order for MSP430F5503IRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5503IRGZT 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 MSP430F5503IRGZT reliable?
The price and inventory of MSP430F5503IRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5503IRGZT is usually 5 days.
3.What payment methods are accepted for MSP430F5503IRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5503IRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5503IRGZT?
MSP430F5503IRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5503IRGZT 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 MSP430F5503IRGZT?
For technical support, including MSP430F5503IRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5503IRGZT requirements.
6.How does Aetrix verify that MSP430F5503IRGZT is sourced from the original manufacturer or authorized distributors?
All MSP430F5503IRGZT 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 MSP430F5503IRGZT meets industry standards.
7.What is the process for return or replacement of MSP430F5503IRGZT?
All MSP430F5503IRGZT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5503IRGZT, 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 MSP430F5503IRGZT part is unused and in its original packaging.
Return procedure for MSP430F5503IRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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