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Texas Instruments MSP430F5326IRGCT
- Part No.:
- MSP430F5326IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5326IRGCT.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,459
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Product details
Overview
MSP430F5326IRGCT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 96 KB flash, 8 KB+2 KB RAM, integrated 3.3-V LDO, 12-bit ADC (10 external + 2 internal channels), four 16-bit timers (TA0/TA1/TA2/TB0), two USCIs (UART/IrDA/SPI/I²C), and RTC-designed for battery-powered sensor nodes and data loggers requiring sub-2 µA standby current and 3.5 µs wake-up.
For engineers reviewing the MSP430F5326IRGCT datasheet, MSP430F5326IRGCT pinout, MSP430F5326IRGCT application, or MSP430F5326IRGCT equivalent, key selection criteria include its 47 I/O count in VQFN-64 package, LPM3 current of 1.9 µA at 2.2 V, 12-bit ADC autoscan capability, and dual-USCI support for concurrent wired communication interfaces in space-constrained embedded systems.
Technical Context
The MSP430F5326IRGCT implements a unified clock system with FLL stabilization, programmable LDO core regulation, and multiple low-power oscillators (VLO, REFO, XT1, XT2) enabling dynamic voltage/frequency scaling across six operating modes. Its CPUXV2 core executes instructions in single-cycle or two-cycle latency with constant generators for optimized code density.
Peripherals are memory-mapped and interrupt-driven, with DMA supporting autonomous transfers between ADC, USCI, and RAM. The RTC_A module provides calendar mode with alarm, while COMP_B offers eight-channel analog comparison with selectable references and hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with 16-bit registers and constant generators for high code efficiency |
| Flash / RAM | 96 KB flash program memory + 8 KB main RAM + 2 KB USB RAM for firmware storage and real-time buffering |
| ADC Resolution | 12-bit SAR ADC with 10 external + 2 internal input channels, autoscan, and sample-and-hold |
| Low-Power Mode LPM3 | 1.9 µA at 2.2 V with RTC, watchdog, and full RAM retention-enables multi-year battery life in sleep-dominated operation |
| Wake-up Time | 3.5 µs typical from LPM3 to active mode-critical for responsive event-driven sensing |
| USCI Interfaces | Two independent USCIs: USCI_Ax supports UART/IrDA/SPI; USCI_Bx supports I²C/SPI-enables dual-protocol sensor hub design |
| I/O Count | 47 general-purpose I/O pins with configurable drive strength, Schmitt-trigger inputs, and port mapping control |
Pinout & Package
VQFN-64 (RGC) package with 9 mm × 9 mm body size and exposed thermal pad (to be connected to VSS per TI recommendation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Port 1 bit 0 / Timer A0 clock input / Auxiliary clock source | Configurable as GPIO or dedicated clock input for timer or system timing; supports low-frequency crystal or internal oscillator |
| P2.6/RTCCLK/DMAE0 | Port 2 bit 6 / RTC clock input / DMA enable 0 | Primary input for 32-kHz RTC crystal; also serves as DMA trigger source for time-synchronized data acquisition |
| P3.0/UCB0SIMO/UCB0SDA | Port 3 bit 0 / SPI master-out-slave-in / I²C serial data | Shared function pin enabling either SPI slave interface or I²C bidirectional data line-requires software configuration |
| P5.4/XIN & P5.5/XOUT | Crystal oscillator input/output | Supports 32-kHz watch crystal (XT1) for RTC or high-frequency crystal up to 32 MHz (XT2) for system clock generation |
| RST/NMI/SBWTDIO | Reset / non-maskable interrupt / Spy-Bi-Wire test I/O | Multi-function pin for power-on reset, emergency interrupt, and debug programming-no external pull-up required for SBW |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated 3.3-V LDO | Programmable core voltage regulation eliminates need for external regulator, reducing BOM count and PCB area |
| Three-channel DMA | Enables background data movement between ADC, USCI, and RAM without CPU intervention-lowers active-mode duty cycle |
| Hardware multiplier (MPY32) | 32-bit integer multiply-accumulate in ≤3 cycles-accelerates sensor fusion, filtering, and cryptographic operations |
| Real-time clock with alarm | Calendar mode with date/time tracking and configurable alarms-supports scheduled wake-up and time-stamped logging |
| Supply voltage supervisor (SVM/SVS) | Dual-threshold monitoring with programmable hysteresis prevents erratic behavior during brownout or battery sag |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and light at 10-minute intervals with BLE transmission every hour. IC Role / Device Role / Timing Role: Central controller managing sensor polling, ADC conversion, RTC-based scheduling, and USCI_B0 I²C/SPI peripheral interfacing. Use Value: Sub-2 µA LPM3 current extends CR2032 battery life beyond 3 years; 3.5 µs wake-up ensures rapid response to motion-triggered events. | Use Scenario: Handheld industrial logger capturing vibration, pressure, and voltage waveforms during equipment maintenance checks. IC Role / Device Role / Timing Role: Real-time data acquisition engine using ADC autoscan, DMA transfer to RAM, and USCI_A0 UART for PC upload via USB-to-serial adapter. Use Value: 12-bit ADC with internal reference enables stable measurements without external precision voltage source; 47 I/O pins support mixed analog/digital sensor expansion. |
| Smart Utility Meter Interface | Low-Power Industrial Controller |
Use Scenario: Tamper-resistant meter add-on board reading pulse outputs from water/gas meters and transmitting via RS-485. IC Role / Device Role / Timing Role: Isolated communication bridge with USCI_A0 UART (RS-485 transceiver control) and USCI_B0 I²C (EEPROM configuration storage). Use Value: Dual-USCI concurrency allows simultaneous EEPROM access and serial transmission-eliminates bus arbitration delays in time-critical billing cycles. | Use Scenario: DIN-rail mounted PLC I/O module monitoring 16 digital inputs and controlling 8 relay outputs in HVAC subsystems. IC Role / Device Role / Timing Role: Deterministic state machine executor using TA2 for precise 100-ms scan timing and COMP_B for analog threshold detection on current-sense inputs. Use Value: Programmable LDO and SVS ensure reliable operation across 2.2–3.6 V supply range common in industrial 24-V DC systems with ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5328IRGC | Same 96 KB flash, 8 KB+2 KB RAM, 47 I/O, and VQFN-64 package; differs only in flash content and minor errata revisions | Identical peripheral set and electrical specs-functionally interchangeable in new designs | Select MSP430F5328IRGC if latest silicon revision is required for known erratum fixes not present in MSP430F5326IRGCT |
| MSP430F5324IRGC | 64 KB flash, 6 KB+2 KB RAM, same 47 I/O count and VQFN-64 package; reduced memory and no RTC_A calendar mode | Suitable for simpler control tasks without time-stamped logging or calendar-aware scheduling | Choose MSP430F5324IRGC when firmware footprint is under 60 KB and RTC calendar functionality is unnecessary |
Compared with MSP430F5326IRGCT, MSP430F5328IRGC offers identical performance with updated silicon, while MSP430F5324IRGC trades memory and RTC capability for lower cost in resource-constrained control-only roles.
Availability
MSP430F5326IRGCT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, and smart utility meter interfaces requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F5326IRGCT 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 for industrial, automotive, and consumer markets.
The MSP430F5326IRGCT belongs to TI's ultra-low-power MCU product line, engineered specifically for extended-battery-life applications in measurement, sensing, and portable instrumentation where energy efficiency and peripheral integration are critical.
FAQ
What is the maximum system clock frequency supported by the MSP430F5326IRGCT?
The MSP430F5326IRGCT supports a maximum system clock frequency of 25 MHz, achieved via the FLL-controlled DCO or external high-frequency crystal (XT2) up to 32 MHz. This allows real-time signal processing and high-speed peripheral operation while maintaining ultra-low-power architecture benefits. The device's CPUXV2 core executes instructions efficiently at this rate, and all peripherals-including ADC, timers, and USCI-are fully functional at 25 MHz.
Does the MSP430F5326IRGCT include an integrated real-time clock (RTC) module?
Yes, the MSP430F5326IRGCT includes the RTC_A module with calendar mode, supporting year/month/day/hour/minute/second tracking and programmable alarms. It operates from the 32-kHz XT1 crystal or VLO in LPM3, consuming only 1.9 µA at 2.2 V. This enables time-stamped data logging and scheduled wake-up without external RTC ICs-reducing system cost and complexity in the MSP430F5326IRGCT-based design.
How many analog input channels does the 12-bit ADC in the MSP430F5326IRGCT support?
The MSP430F5326IRGCT features a 12-bit ADC12_A module with 10 external analog input channels and 2 internal channels (temperature sensor and VREF+/VeREF+). It supports autoscan mode for sequential conversion across selected channels without CPU intervention, and includes sample-and-hold for accurate high-impedance signal acquisition-key for reliable sensor interfacing in the MSP430F5326IRGCT application.
What debug interface does the MSP430F5326IRGCT use, and is external hardware required?
The MSP430F5326IRGCT uses the Spy-Bi-Wire (SBW) interface for debugging and programming, accessible via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. No external voltage generator is needed-SBW operates from the target supply (1.8–3.6 V). TI's MSP-FET or compatible debuggers support this 2-wire interface, enabling full JTAG-equivalent functionality with minimal PCB footprint for the MSP430F5326IRGCT development workflow.
Can the MSP430F5326IRGCT operate from a single 2.0-V supply, and what low-power modes are available?
Yes, the MSP430F5326IRGCT operates across 1.8–3.6 V, including 2.0 V. It supports five low-power modes: LPM0–LPM3 (with increasing peripheral disablement) and LPM4.5 (shutdown). At 2.0 V, LPM3 draws ~2.0 µA with RTC active; LPM4 draws ~1.1 µA. The integrated LDO maintains regulated VCORE, ensuring stable core operation even as battery voltage declines-essential for long-duration MSP430F5326IRGCT deployments.
MSP430F5326IRGCT 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
- 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:
MSP430F5326IRGCT FAQ
1.How can I place an order for MSP430F5326IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5326IRGCT 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 MSP430F5326IRGCT reliable?
The price and inventory of MSP430F5326IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5326IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5326IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5326IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5326IRGCT?
MSP430F5326IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5326IRGCT 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 MSP430F5326IRGCT?
For technical support, including MSP430F5326IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5326IRGCT requirements.
6.How does Aetrix verify that MSP430F5326IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5326IRGCT 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 MSP430F5326IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5326IRGCT?
All MSP430F5326IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5326IRGCT, 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 MSP430F5326IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5326IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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