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Texas Instruments MSP430F5526IRGCR
- Part No.:
- MSP430F5526IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5526IRGCR.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
MSP430F5526IRGCR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, 64 KB flash, 8 KB + 2 KB RAM, 47 GPIO pins, and a 12-bit ADC with 12 input channels (10 external, 2 internal). It operates from 1.8 V to 3.6 V and supports real-time clock (RTC), four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), and hardware multiplier - deployed in battery-powered sensor nodes and USB-connected data loggers.
For engineers reviewing the MSP430F5526IRGCR datasheet, MSP430F5526IRGCR pinout, MSP430F5526IRGCR application, or MSP430F5526IRGCR equivalent, key selection criteria include its 47-pin VQFN package, USB-capable peripheral set, LPM3 standby current of 1.9 µA at 3.0 V, 12-bit ADC sampling rate up to 200 ksps, and compatibility with TI's MSP430Ware™ and Code Composer Studio™ development ecosystem.
Technical Context
The MSP430F5526IRGCR implements a 16-bit RISC CPU with constant generators and digitally controlled oscillator (DCO), enabling 3.5 µs wake-up from LPM3. Its unified clock system integrates FLL stabilization, REFO/ VLO internal sources, XT1 (32 kHz), and XT2 (up to 32 MHz) crystal support.
Power management includes a programmable LDO core regulator, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5). The USB subsystem features integrated PHY, 3.3-V/1.8-V power system, USB-PLL, and eight endpoints - all operating without external USB transceivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 32-bit hardware multiplier and constant generators for optimized code density |
| Flash / RAM | 64 KB flash memory with segment erase; 8 KB + 2 KB RAM supporting full retention in LPM3/LPM4 |
| USB Interface | Full-speed USB 2.0 compliant with integrated PHY, USB-PLL, and dual-voltage (3.3 V/1.8 V) power system |
| ADC Performance | 12-bit SAR ADC with 200 ksps max sample rate, autoscan, internal reference, and 12-channel input mux (10 external) |
| Low-Power Modes | LPM3 draws 1.9 µA at 3.0 V with RTC, watchdog, and full RAM retention; LPM4.5 draws 0.18 µA |
| Timer Resources | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC shadow registers) for PWM, capture, and interval timing |
| Communication Peripherals | Two USCI modules: USCI_A0/A1 (UART/IrDA/SPI), USCI_B0/B1 (I²C/SPI); no external level-shifting required |
Pinout & Package
VQFN-64 (RGCR) package: 9 mm × 9 mm, 0.5 mm pitch, thermally enhanced exposed pad. Pin mapping validated per TI SLAS590P Rev. P, Section 7.1 (64-pin RGC pin diagram).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / Spy-Bi-Wire debug I/O | Single-pin JTAG-compatible debug interface; internal pullup enables reset assertion on low pulse |
| DP / DM | USB differential data pair | Direct connection to USB host; integrated termination and biasing eliminate external resistors |
| PUR | USB pullup resistor control | Enables/disables internal 1.5-kΩ pullup on DP to signal USB device enumeration to host |
| AVCC / AVSS | Analog power supply / ground | Separate analog domain for ADC and comparator; requires local decoupling for <1 LSB noise performance |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768 kHz watch crystal for RTC; internal load caps configurable via UCSCTL6 register |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 1.9 µA LPM3 current enables multi-year battery life in sensor nodes with periodic RTC wakeups |
| Integrated USB 2.0 PHY | Eliminates need for external transceiver; reduces BOM count and PCB area in USB-peripheral designs |
| 12-bit ADC with autoscan | Hardware-triggered channel sequencing allows unattended multi-sensor acquisition without CPU intervention |
| Flexible clock system | FLL + REFO/VLO + XT1/XT2 support dynamic frequency scaling and fail-safe clock fallback in field-deployed systems |
| Three-channel DMA | Offloads data movement from CPU during ADC conversions, USB transfers, or timer captures - preserving low-power mode residency |
Applications
| Industrial Sensor Node | USB Data Logger |
|---|---|
Use Scenario: Remote temperature/humidity monitoring in HVAC ducts using battery-powered wireless edge node. IC Role / Device Role / Timing Role: MSP430F5526IRGCR acts as system controller, ADC manager, RTC scheduler, and USB device interface. Use Value: 1.9 µA LPM3 current extends battery life beyond 5 years; integrated USB enables direct PC-based firmware updates and data retrieval. | Use Scenario: Portable environmental logger capturing CO₂, pressure, and light intensity every 10 seconds for 30 days. IC Role / Device Role / Timing Role: MSP430F5526IRGCR executes timed ADC sampling, stores results in RAM/flash, and presents data via USB mass storage class. Use Value: Hardware autoscan and DMA reduce active-mode time per sample cycle; USB-PLL ensures stable 48-MHz clock for reliable enumeration. |
| Smart Meter Interface Module | USB-Capable Test Fixture |
Use Scenario: Add-on module for legacy utility meters to enable USB-based configuration and firmware upgrade in field service. IC Role / Device Role / Timing Role: MSP430F5526IRGCR bridges UART-based meter ICs to USB host, handling protocol translation and secure boot verification. Use Value: Integrated USB PHY and 64 KB flash accommodate bootloader + application; LPM4.5 (0.18 µA) minimizes parasitic drain when disconnected. | Use Scenario: Production test fixture verifying analog sensor outputs and digital communication integrity before board shipment. IC Role / Device Role / Timing Role: MSP430F5526IRGCR controls stimulus generation, acquires readings via ADC, and streams results over USB to host PC. Use Value: 200 ksps ADC sampling and 12-channel mux allow rapid multi-point calibration; USCI_B0 provides I²C master control of DUT peripherals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power USB MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5528IRGC | Same 64-pin VQFN package, identical peripheral set, but 96 KB flash and 6 KB + 2 KB RAM | Preferred where larger firmware image size or extended data buffering is required | Select MSP430F5528IRGC if >64 KB flash is needed; otherwise MSP430F5526IRGCR offers optimal cost/performance balance |
| MSP430F5524IRGC | Same 64-pin VQFN package, identical peripheral set, but 32 KB flash and 4 KB + 2 KB RAM | Suitable for simpler USB firmware with minimal feature set and lower memory footprint | Choose MSP430F5524IRGC only when application fits within 32 KB flash and does not require future expansion headroom |
Compared with MSP430F5528IRGC and MSP430F5524IRGC, the MSP430F5526IRGCR delivers the most balanced memory allocation (64 KB flash / 8 KB + 2 KB RAM) for mid-complexity USB sensor applications - avoiding over-provisioning while retaining sufficient space for bootloader, USB stack, and application logic.
Availability
MSP430F5526IRGCR is available at Aetrix Electronics and suitable for industrial sensor nodes, USB data loggers, and smart meter interface modules requiring stable component supply across multi-year production cycles.
Supply support for MSP430F5526IRGCR 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 with broad industrial and automotive design-in leadership.
The MSP430F55xx product line targets ultra-low-power USB-enabled sensing and control applications - emphasizing extended battery life, integrated analog front-ends, and seamless host connectivity without external transceivers.
FAQ
What is the maximum operating frequency of the MSP430F5526IRGCR?
The MSP430F5526IRGCR supports a maximum system clock frequency of 25 MHz, achieved via the integrated FLL loop using internal or external reference sources. This frequency applies to MCLK and SMCLK domains; ACLK is typically derived from low-frequency sources like XT1 (32.768 kHz) or VLO. All timing specifications in the datasheet - including ADC conversion time and USB frame timing - are validated at this maximum clock rate.
Does the MSP430F5526IRGCR include an integrated USB transceiver?
Yes, the MSP430F5526IRGCR includes a fully integrated USB 2.0 full-speed PHY with internal termination, biasing, and 3.3-V/1.8-V power regulation. No external USB transceiver or level-shifting components are required - DP and DM pins connect directly to the USB connector. The integrated USB-PLL generates the precise 48-MHz clock needed for USB compliance.
How many analog input channels does the ADC support on the MSP430F5526IRGCR?
The MSP430F5526IRGCR's 12-bit ADC (ADC12_A) supports 12 total input channels: 10 external analog inputs (A0–A9) and 2 internal sources (temperature sensor and VREF/2). Channel selection is managed by the ADC12MCTLx registers, and autoscan mode allows hardware-sequenced conversion across multiple channels without CPU intervention.
What low-power modes are available on the MSP430F5526IRGCR, and what is the lowest current draw?
The MSP430F5526IRGCR supports five low-power modes (LPM0–LPM4.5). The lowest active-retention mode is LPM4.5, drawing 0.18 µA at 3.0 V with full RAM retention and supply supervisor enabled. LPM3 draws 1.9 µA at 3.0 V with RTC, watchdog, and full RAM retention - commonly used for time-triggered wakeups in sensor applications.
Is the MSP430F5526IRGCR pin-compatible with other devices in the MSP430F55xx family?
Yes, the MSP430F5526IRGCR in the 64-pin VQFN (RGCR) package shares identical pinout and electrical characteristics with MSP430F5528IRGC, MSP430F5524IRGC, and MSP430F5522IRGC. This allows direct substitution within the same footprint when flash/RAM requirements align - verified per TI's Device Comparison table (SLAS590P Section 6) and pin diagrams (Section 7.1).
MSP430F5526IRGCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-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:
- 47
- Program Memory Size:
- 96KB (96K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5526IRGCR FAQ
1.How can I place an order for MSP430F5526IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5526IRGCR 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 MSP430F5526IRGCR reliable?
The price and inventory of MSP430F5526IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5526IRGCR is usually 5 days.
3.What payment methods are accepted for MSP430F5526IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5526IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5526IRGCR?
MSP430F5526IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5526IRGCR 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 MSP430F5526IRGCR?
For technical support, including MSP430F5526IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5526IRGCR requirements.
6.How does Aetrix verify that MSP430F5526IRGCR is sourced from the original manufacturer or authorized distributors?
All MSP430F5526IRGCR 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 MSP430F5526IRGCR meets industry standards.
7.What is the process for return or replacement of MSP430F5526IRGCR?
All MSP430F5526IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5526IRGCR, 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 MSP430F5526IRGCR part is unused and in its original packaging.
Return procedure for MSP430F5526IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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