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Texas Instruments MSP430F5501IRGZR
- Part No.:
- MSP430F5501IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5501IRGZR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,449
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Product details
Overview
MSP430F5501IRGZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, comparator (no ADC), 16 KB flash, 4 KB + 2 KB RAM, four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (UART/IrDA/SPI/I²C), and RTC. 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 MSP430F5501IRGZR datasheet, MSP430F5501IRGZR pinout, MSP430F5501IRGZR application, or MSP430F5501IRGZR equivalent, key selection criteria include its 48-pin VQFN (7 mm × 7 mm) package, comparator-based analog sensing capability, USB full-speed host/device support, and LPM4.5 shutdown current of 0.18 µA at 3 V - critical for long-life portable instrumentation.
Technical Context
The MSP430F5501IRGZR 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 programmable LDO core regulation, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5).
Peripherals are mapped via port mapping controller on P4; USB functionality uses dedicated DP/DM pins with integrated USB-PHY, USB-LDO, and USB-PLL. The device lacks ADC10_A but retains COMP_B with four channels, enabling window-comparator-based threshold detection without external components.
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 | 16 KB flash (in-system programmable) + 4 KB main RAM + 2 KB USB SRAM usable as general-purpose RAM when USB inactive |
| USB Interface | Full-speed USB 2.0 with integrated PHY, 3.3-V/1.8-V power system, PLL, and eight IN/OUT endpoints |
| Comparator | COMP_B with four input channels and window-comparator mode - replaces ADC for threshold-triggered wake-up and event detection |
| Low-Power Modes | LPM4.5 draws 0.18 µA at 3 V; LPM3 (RTC active) draws 1.9 µA at 2.2 V - enables multi-year battery life in sleep-dominated applications |
| Timers | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC) - supports PWM, capture, interval timing, and RTC calibration |
| USCI Modules | Two USCI peripherals: USCI_A0/A1 (UART/IrDA/SPI) and USCI_B0/B1 (I²C/SPI); functions routed via P4 port mapping controller |
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 | Configurable as low-frequency ACLK source or timer clock; supports crystal or internal reference |
| P1.1–P1.5 | Timer A0 capture/compare inputs | Five independent I/Os with CAP/COM capability for pulse-width measurement or PWM generation |
| P4.0–P4.5 | Port-mapped USCI signals (UCB1/ UCA1) | Functionally configurable SPI/I²C/UART pins - requires software port mapping control register setup |
| PU.0/DP, PU.1/DM | USB differential data pair | Dedicated full-speed USB transceiver pins - no external PHY required; internal termination enabled |
| PUR | USB pull-up resistor control | Active-high signal enabling internal 1.5-kΩ pull-up on DP for USB device enumeration |
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire I/O | Single-pin debug interface (SBW) compatible with MSP-FET; supports secure programming and real-time debugging |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low shutdown current | 0.18 µA in LPM4.5 mode enables >10-year coin-cell operation in maintenance-free sensor nodes |
| Integrated USB 2.0 PHY | Eliminates external transceiver; supports self-powered and bus-powered configurations with VBUS detection |
| Comparator with window mode | Four-channel COMP_B provides hardware-level voltage monitoring and wake-on-event without CPU intervention |
| Flexible clock system | FLL-stabilized DCO, dual crystal support (XT1/XT2), and low-power VLO enable precise timing across all power modes |
| Port mapping controller | Dynamic remapping of USCI functions to P4 pins allows custom peripheral routing without PCB redesign |
Applications
| Industrial Sensor Node | USB Data Logger |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor node transmitting alerts via USB when thresholds are exceeded. IC Role / Device Role / Timing Role: MSP430F5501IRGZR acts as system controller and analog monitor - COMP_B detects threshold crossings, wakes CPU, and initiates USB bulk transfer. Use Value: LPM4.5 current of 0.18 µA extends 200 mAh coin-cell life beyond 8 years; integrated USB eliminates level-shifter and PHY BOM cost. |
Use Scenario: Portable environmental logger recording sensor data to PC via USB cable during field deployment. IC Role / Device Role / Timing Role: MSP430F5501IRGZR serves as data aggregator and USB device - RTC timestamps samples, USCI handles UART sensor comms, USB transfers logs. Use Value: Dual USCI modules allow concurrent sensor UART and USB communication; 16 KB flash stores >10,000 timestamped records before upload. |
| Wireless Headset Dongle | Low-Power USB HID Device |
|
Use Scenario: USB dongle receiving audio control commands from Bluetooth headset and relaying them to PC as HID reports. IC Role / Device Role / Timing Role: MSP430F5501IRGZR functions as bridge MCU - processes incoming serial commands and formats USB HID reports using built-in descriptors. Use Value: Sub-5 µs wake-up from LPM3 ensures responsive button press latency; USB suspend/resume handling reduces host-side polling overhead. |
Use Scenario: Small-form-factor USB keyboard or presentation remote requiring minimal power and compact layout. IC Role / Device Role / Timing Role: MSP430F5501IRGZR operates as HID class device - scans matrix keys, debounces inputs, and sends report descriptors over USB. Use Value: 48-pin VQFN enables <100 mm² PCB area; comparator monitors battery voltage for graceful low-power shutdown before brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller-with-USB applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5504IRGZR | Includes 10-bit ADC10_A (6 external + 2 internal channels) instead of comparator; same 16 KB flash, 48-pin RGZ package | Preferred where analog sensor signal digitization is required alongside USB connectivity | Select MSP430F5504IRGZR if ADC sampling (e.g., thermistor, potentiometer) is needed; MSP430F5501IRGZR is optimal for comparator-only threshold detection |
| MSP430F5502IRGZR | 24 KB flash, same comparator set, identical peripheral count and pinout - differs only in program memory size | Suitable for firmware with larger code footprint (e.g., USB CDC ACM stack + sensor fusion algorithms) | Choose MSP430F5502IRGZR when additional flash is required for feature-rich USB device firmware; pin-compatible drop-in replacement |
Compared with MSP430F5504IRGZR and MSP430F5502IRGZR, the MSP430F5501IRGZR offers the smallest flash option (16 KB) with comparator-only analog front-end - ideal for cost-sensitive, event-driven USB peripherals where ADC is unnecessary.
Availability
MSP430F5501IRGZR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB data loggers, wireless headset dongles, and low-power HID devices requiring stable component supply and long-term manufacturability.
Supply support for MSP430F5501IRGZR 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, with leadership in low-power microcontrollers and precision analog technology.
The MSP430F5501IRGZR belongs to TI's MSP430F5xx ultra-low-power MCU family, designed specifically for battery-operated measurement and USB-connected instrumentation where nanowatt-scale sleep current and integrated analog/USB peripherals reduce system complexity.
FAQ
What is the maximum system clock frequency supported by the MSP430F5501IRGZR?
The MSP430F5501IRGZR supports up to 25 MHz system clock frequency via its digitally controlled oscillator (DCO) stabilized by the FLL loop, or up to 32 MHz using the external high-frequency crystal oscillator (XT2). This enables high-throughput USB packet handling and fast sensor data processing while maintaining deterministic timing.
Does the MSP430F5501IRGZR include an analog-to-digital converter (ADC)?
No, the MSP430F5501IRGZR does not include ADC10_A. Per TI's device comparison table, it substitutes the 10-bit ADC found in variants like MSP430F5504 with COMP_B - a four-channel analog comparator supporting window-comparator mode for voltage threshold detection and wake-on-event functionality.
What USB speed and device classes does the MSP430F5501IRGZR support?
The MSP430F5501IRGZR supports full-speed USB 2.0 (12 Mbps) and implements standard USB device classes including HID, CDC ACM, and MSC via firmware. Its integrated USB-PHY, USB-PLL, and endpoint buffers eliminate external transceivers and simplify compliance testing for USB-IF certification.
How many I/O pins does the MSP430F5501IRGZR provide in its RGZ package?
The MSP430F5501IRGZR in the 48-pin VQFN (RGZ) package provides 31 general-purpose I/O pins, distributed across ports P1–P6 and PJ. These include dedicated USB (DP/DM/PUR), crystal (XIN/XOUT), and debug (SBWTDIO/TCK) pins - leaving 27 GPIOs available for application use after system functions are assigned.
What is the wake-up time from LPM3 standby mode for the MSP430F5501IRGZR?
The MSP430F5501IRGZR wakes from LPM3 (standby with RTC active) in less than 5 µs, as confirmed in the device overview section of the SLAS645L datasheet. This rapid wake-up enables precise event timing and minimizes active-mode energy consumption during intermittent sensor sampling or USB interrupt servicing.
MSP430F5501IRGZR 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:
- 16KB (16K 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:
MSP430F5501IRGZR FAQ
1.How can I place an order for MSP430F5501IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5501IRGZR 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 MSP430F5501IRGZR reliable?
The price and inventory of MSP430F5501IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5501IRGZR is usually 5 days.
3.What payment methods are accepted for MSP430F5501IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5501IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5501IRGZR?
MSP430F5501IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5501IRGZR 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 MSP430F5501IRGZR?
For technical support, including MSP430F5501IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5501IRGZR requirements.
6.How does Aetrix verify that MSP430F5501IRGZR is sourced from the original manufacturer or authorized distributors?
All MSP430F5501IRGZR 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 MSP430F5501IRGZR meets industry standards.
7.What is the process for return or replacement of MSP430F5501IRGZR?
All MSP430F5501IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5501IRGZR, 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 MSP430F5501IRGZR part is unused and in its original packaging.
Return procedure for MSP430F5501IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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