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Texas Instruments MSP430F5526IRGCT
- Part No.:
- MSP430F5526IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5526IRGCT.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,020
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Product details
Overview
MSP430F5526IRGCT from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller with integrated USB 2.0 PHY, 64KB flash, 4KB+2KB RAM, 12-bit ADC (12-channel), four 16-bit timers, two USCI modules (UART/IrDA/SPI/I²C), RTC, and hardware multiplier-designed for battery-powered sensor nodes and USB-connected data loggers.
For engineers reviewing the MSP430F5526IRGCT datasheet, MSP430F5526IRGCT pinout, MSP430F5526IRGCT application, or MSP430F5526IRGCT equivalent, key selection criteria include its 47 I/O count, VQFN-64 package, USB-capable operation at 1.8–3.6 V, LPM3 standby current of 1.9 µA, and 3.5 µs wake-up time-critical for energy-constrained embedded systems requiring host connectivity.
Technical Context
The MSP430F5526IRGCT implements a 16-bit RISC CPU with constant generators and digitally controlled oscillator (DCO), enabling 25-MHz system clock operation and 3.5 µs active-mode wake-up from LPM3. Its unified clock system integrates FLL stabilization, VLO/REFO internal sources, XT1 (32-kHz crystal), and XT2 (up to 32-MHz crystal).
Power management includes a programmable LDO core regulator, supply voltage supervisor (SVS), brownout reset (BOR), and five low-power modes (LPM0–LPM4.5). The integrated USB subsystem features dedicated USB-PHY, USB-LDO, USB-PLL, eight endpoints, and full-speed (12 Mbps) support without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 25-MHz max system clock and 3.5 µs LPM3 wake-up-enables rapid response in event-driven sensing applications. |
| Memory | 64KB flash + 4KB+2KB RAM-supports firmware updates and real-time data buffering in standalone data loggers. |
| ADC | 12-bit, 200 ksps, 12-channel (10 external + 2 internal)-provides precision analog acquisition for multi-sensor monitoring. |
| USB Interface | Full-speed USB 2.0 with integrated PHY, PLL, and 3.3-V/1.8-V power system-eliminates external transceiver and simplifies host connection. |
| Low-Power Modes | LPM3: 1.9 µA @ 3.0 V with RTC/crystal active; LPM4.5: 0.18 µA-extends battery life in maintenance-free deployments. |
| I/O Count | 47 general-purpose I/O pins with configurable drive strength and Schmitt-trigger inputs-supports flexible peripheral interfacing in compact designs. |
| Timers & Peripherals | Four 16-bit timers (TA0/TA1/TA2/TB0), two USCI modules (A0/A1/B0/B1), hardware multiplier, DMA, and RTC_A-enables concurrent timing, communication, and computation tasks. |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm, 0.5-mm pitch, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Non-maskable interrupt input | Active-low reset with integrated pullup; supports both power-on reset and external emergency halt. |
| DP / DM | USB differential data pair | Direct connection to USB host; requires no external termination resistors due to integrated PHY. |
| PUR | USB pullup resistor control | Enables/disables internal 1.5-kΩ pullup on DP to signal USB device speed negotiation. |
| AVCC / AVSS | Analog power supply / ground | Separate analog domain for ADC and comparator-reduces digital noise coupling into sensitive measurements. |
| XIN / XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC accuracy and low-power timekeeping. |
| XT2IN / XT2OUT | High-frequency crystal oscillator terminals | Accepts up to 32-MHz crystal for precise system clock generation or USB PLL reference. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 PHY | Eliminates need for external transceiver IC and associated passive components-reducing BOM cost and PCB area by ~12 mm². |
| Programmable LDO core regulator | Adjusts VCORE between 1.35 V and 1.45 V to optimize active-mode current vs. performance trade-off across operating voltages. |
| 12-channel 12-bit ADC with autoscan | Automatically sequences conversions across 12 inputs without CPU intervention-enabling continuous sensor polling at <10 µA overhead. |
| Three-channel DMA controller | Offloads data movement from CPU during ADC sampling, USB transfers, or timer captures-preserving low-power mode residency. |
| Real-time clock with alarm | Operates in LPM3 using 32-kHz crystal for calendar timekeeping and scheduled wake-up events-essential for periodic data logging. |
Applications
| USB Sensor Node | Data Logger |
|---|---|
Use Scenario: Compact environmental monitor connecting directly to PC or industrial USB host for real-time temperature/humidity/pressure readings. IC Role / Device Role / Timing Role: Primary MCU managing sensor interface, ADC acquisition, USB packet formatting, and LPM3-based duty-cycled sampling. Use Value: Integrated USB PHY and 1.9 µA LPM3 current enable >1-year battery life on coin cell while maintaining host visibility and firmware update capability. | Use Scenario: Standalone field-deployed unit recording analog sensor data at fixed intervals onto internal flash memory. IC Role / Device Role / Timing Role: System controller executing RTC-triggered wake-up, multi-channel ADC capture, flash write, and return to LPM4.5 shutdown. Use Value: 0.18 µA LPM4.5 current and 64KB flash allow >6 months of unattended operation on two AA batteries with 1-minute sampling interval. |
| Smart Meter Interface | Portable Diagnostic Tool |
Use Scenario: Utility meter add-on module providing USB-based configuration, firmware upgrade, and diagnostic readout via technician laptop. IC Role / Device Role / Timing Role: Secure bridge between meter's isolated RS-485 bus and USB host, handling protocol translation and secure boot verification. Use Value: Hardware multiplier and 128KB flash option (family-wide) support AES-128 encryption for firmware integrity checks during USB updates. | Use Scenario: Handheld test instrument acquiring analog waveforms from medical or automotive sensors and streaming to PC via USB. IC Role / Device Role / Timing Role: Real-time waveform digitizer using ADC autoscan, DMA transfer to RAM, and USB bulk transfer at 12 Mbps. Use Value: 200 ksps ADC throughput and full-speed USB enable sustained 100 ksample/s streaming-exceeding typical oscilloscope requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power USB microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5528IRGC | Same VQFN-64 package, identical peripherals, but 96KB flash and 6KB+2KB RAM-no ADC channel count difference. | Preferred when larger firmware footprint or extended data buffering is required without changing layout or power profile. | Select MSP430F5528IRGC if future firmware expansion or larger RAM buffers are anticipated; pinout and USB/ADC behavior are identical. |
| MSP430F5524IRGC | Same VQFN-64 package and 47 I/O, but 32KB flash and 4KB+2KB RAM; retains full USB, ADC, and timer set. | Suitable for cost-sensitive designs where firmware size is constrained and minimal feature set suffices. | Choose MSP430F5524IRGC to reduce cost while retaining USB connectivity, 12-bit ADC, and ultra-low-power operation in space-limited layouts. |
Compared with MSP430F5528IRGC and MSP430F5524IRGC, the MSP430F5526IRGCT offers balanced memory (64KB flash), consistent 12-channel ADC, and identical USB/timer/peripheral integration-making it the optimal mid-tier choice for USB-enabled sensor systems requiring reliable firmware headroom without over-provisioning.
Availability
MSP430F5526IRGCT is available at Aetrix Electronics and suitable for USB-connected sensor nodes, battery-powered data loggers, and portable diagnostic tools requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430F5526IRGCT 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 headquartered in Dallas, Texas, delivering analog, embedded processing, and wireless connectivity solutions for industrial, automotive, and consumer markets.
The MSP430™ ultra-low-power MCU product line targets energy-constrained applications such as portable instrumentation, sensor networks, and battery-operated USB peripherals-emphasizing sub-µA sleep currents, fast wake-up, and integrated analog/mixed-signal functions.
FAQ
What is the maximum system clock frequency supported by the MSP430F5526IRGCT?
The MSP430F5526IRGCT supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization or high-frequency crystal (XT2) up to 32 MHz. This enables high-throughput USB 2.0 full-speed operation at 12 Mbps and real-time processing of multi-channel ADC data without bottlenecks. The 25-MHz CPU clock is fully validated across the 1.8–3.6 V supply range per TI SLAS590P specifications.
Does the MSP430F5526IRGCT include an integrated USB physical layer?
Yes, the MSP430F5526IRGCT integrates a full-speed USB 2.0 physical layer (PHY), USB-PLL, and dual-voltage USB power system (3.3 V and 1.8 V). This eliminates the need for external USB transceivers, termination resistors, or level shifters. The DP and DM pins connect directly to the USB connector, and the PUR pin controls the internal 1.5-kΩ pullup resistor for USB speed detection-all documented in Section 4.2 of the MSP430F5526IRGCT datasheet.
How many analog input channels does the 12-bit ADC in the MSP430F5526IRGCT support?
The MSP430F5526IRGCT features a 12-bit ADC (ADC12_A) with 12 total input channels: 10 external analog inputs (A0–A9) and 2 internal sources (temperature sensor and VREF generator). This matches the family specification for RGC/ZXH/ZQE-package variants and is confirmed in Figure 4-2 and Section 8.35 of the SLAS590P datasheet. Channel count differs from PN-package devices (16-channel), which have higher I/O count.
What low-power modes are available on the MSP430F5526IRGCT, and what is the lowest current consumption?
The MSP430F5526IRGCT 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, crystal oscillator, watchdog, and supervisor active-verified in Section 8.5 of the official datasheet. All values are typical and measured under specified conditions.
Is the MSP430F5526IRGCT pin-compatible with other devices in the MSP430F552x family?
Yes, the MSP430F5526IRGCT is pin-compatible with other VQFN-64 (RGC) variants in the same family: MSP430F5528IRGC, MSP430F5524IRGC, and MSP430F5522IRGC. All share identical pin count, mechanical footprint, and signal mapping per TI's Device Comparison table (Section 6) and Pin Diagrams (Section 7.1). Functional differences (flash/RAM size, ADC channels) do not affect pin assignment or electrical compatibility.
MSP430F5526IRGCT 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:
MSP430F5526IRGCT FAQ
1.How can I place an order for MSP430F5526IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5526IRGCT 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 MSP430F5526IRGCT reliable?
The price and inventory of MSP430F5526IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5526IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5526IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5526IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5526IRGCT?
MSP430F5526IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5526IRGCT 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 MSP430F5526IRGCT?
For technical support, including MSP430F5526IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5526IRGCT requirements.
6.How does Aetrix verify that MSP430F5526IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5526IRGCT 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 MSP430F5526IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5526IRGCT?
All MSP430F5526IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5526IRGCT, 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 MSP430F5526IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5526IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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