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Texas Instruments MSP430F5254IRGCT
- Part No.:
- MSP430F5254IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5254IRGCT.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:483
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Product details
Overview
MSP430F5254IRGCT from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller designed as an "always-on" system controller for portable and battery-powered applications. It features 128 KB flash, 32 KB RAM, dual-supply operation (DVCC: 1.8–3.6 V; DVIO: 1.62–1.98 V), four USCI_A (UART/IrDA/SPI) and four USCI_B (I²C/SPI) modules, and operates at up to 25 MHz. It serves in sensor hub and power-management roles where fast wake-up (3.5 µs) and sub-µA standby current (1.6 µA in LPM3) are critical.
For engineers reviewing the MSP430F5254IRGCT datasheet, MSP430F5254IRGCT pinout, MSP430F5254IRGCT application, or MSP430F5254IRGCT equivalent, key selection considerations include its split-rail I/O architecture, 35 total GPIOs (18 DVCC + 17 DVIO), RTC-integrated basic timer, hardware multiplier, and 10-bit ADC with internal reference - all optimized for low-duty-cycle monitoring tasks without external level shifters.
Technical Context
The MSP430F5254IRGCT implements a unified clock system with FLL stabilization, dual crystal support (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and three internal sources (VLO, REFO, DCO). Its power management includes an integrated LDO with programmable core voltage and supply supervision with brownout detection.
It integrates four 16-bit timers (TA0/TA1/TA2/TB0), a 10-bit ADC10_A with 12 channels (10 external + 2 internal), comparator_B with 8 channels, and 3-channel DMA. All USCI modules support simultaneous full-duplex communication - enabling concurrent I²C sensor reads and UART telemetry transmission in sensor fusion systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with extended memory addressing |
| Flash / RAM | 128 KB flash for firmware storage; 32 KB RAM for real-time sensor buffering and algorithm execution |
| Supply Rails | Dual-supply: DVCC = 1.8–3.6 V (core/peripherals); DVIO = 1.62–1.98 V (I/O interface to 1.8-V logic) |
| Active Current | 290 µA/MHz @ 8 MHz, 3.0 V (flash execution); enables efficient high-throughput polling without thermal throttling |
| Standby Current | 1.6 µA @ 3.0 V in LPM3 (RTC + watchdog + full RAM retention); supports multi-week battery life in sleep-dominated duty cycles |
| Wake-up Time | 3.5 µs from LPM3 to active mode; ensures responsive event handling for touch, motion, or fault interrupts |
| ADC Resolution | 10-bit SAR ADC with internal reference and sample-and-hold; supports direct analog sensor interfacing without external reference ICs |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm, thermally enhanced with exposed thermal pad. Pin 1 marked via top-side dot; pins 15 (DVCC), 16 (DVSS), 17 (VCORE), 39 (DVSS), and 40 (DVIO) define the dual-supply domain partitioning.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | DVIO-domain GPIO / TA0CLK / ACLK | 1.8-V tolerant I/O with interrupt/wakeup capability; ACLK input enables independent RTC timing |
| P2.0–P2.7 | DVIO-domain GPIO / USCI_B3 / RTCCLK | Supports I²C/SPI peripheral control and RTC clock injection; all pins have Schmitt-trigger inputs |
| P3.0–P3.4 | DVIO-domain GPIO / USCI_B0 / USCI_A0 | Dedicated I²C master/slave and UART interfaces; enables isolated sensor bus communication |
| P4.0–P4.7 | DVIO-domain GPIO / USCI_B1 / USCI_A1 | Second set of hardware serial interfaces; allows concurrent connection to display driver and environmental sensor |
| P5.0–P5.5 | DVCC-domain GPIO / ADC inputs / XIN | Analog-capable pins for external sensors; XIN/XOUT support 32-kHz crystal for precision RTC operation |
| P6.0–P6.7 | DVCC-domain GPIO / TA2 / Comparator_B | Timer capture/compare and analog comparator inputs; supports motor control feedback or voltage monitoring |
| P7.0–P7.5 | DVIO-domain GPIO / USCI_A3 | Additional UART/SPI channel; provides redundant telemetry path or bootloader interface |
| RST/NMI | Reset / Non-maskable interrupt | Asynchronous reset with brownout detection; NMI supports critical fault signaling without CPU intervention |
Key Features
| Feature | Design Value |
|---|---|
| Split-rail I/O architecture | Enables direct 1.8-V interface to application processors and sensors without external level translators |
| Four USCI_A + four USCI_B modules | Supports eight concurrent hardware serial interfaces - e.g., four I²C sensors + four SPI peripherals - eliminating software bit-banging overhead |
| 32 KB RAM capacity | Allows storage of extended sensor fusion buffers, keyboard scan matrices, or encrypted BSL firmware images |
| Hardware multiplier (MPY32) | Executes 32-bit multiply-accumulate operations in one cycle; accelerates digital filtering and PID control loops |
| RTC_A module with alarm | Provides calendar-based wake-up events and time-stamped data logging without CPU involvement |
Applications
| Wearable Sensor Hub | Smart Home Power Monitor |
|---|---|
Use Scenario: Aggregating accelerometer, gyroscope, and ambient light data in a fitness tracker while main SoC remains powered down. IC Role / Device Role / Timing Role: Always-on system controller managing sensor polling, preprocessing, and wake-up arbitration using RTC_A alarms and GPIO interrupts. Use Value: Achieves 1.6 µA LPM3 current and 3.5 µs wake-up to respond to motion triggers - extending coin-cell battery life to >6 months. | Use Scenario: Monitoring AC line voltage, current, and temperature in a smart plug to detect overloads or overheating conditions. IC Role / Device Role / Timing Role: Real-time power management hub executing ADC sampling, threshold comparison, and relay control via comparator_B outputs. Use Value: Uses 10-bit ADC10_A with internal reference and DVIO-domain GPIOs to interface directly with 1.8-V isolation amplifiers and triac drivers. |
| Bluetooth® Peripheral Controller | Industrial Data Logger |
Use Scenario: Acting as BLE beacon controller that broadcasts sensor IDs and handles connectionless advertising packets. IC Role / Device Role / Timing Role: Low-latency UART host for BLE module (e.g., CC2541), managing AT command flow and power-state coordination. Use Value: Leverages USCI_A0/A1 for simultaneous BLE UART and debug UART, while DVIO rail matches BLE module I/O voltage. | Use Scenario: Recording temperature, humidity, and vibration data from industrial equipment at fixed intervals for predictive maintenance. IC Role / Device Role / Timing Role: Autonomous data acquisition node using RTC_A alarms to trigger periodic ADC conversions and store results in RAM before flash write. Use Value: 128 KB flash stores >100,000 timestamped samples; 32 KB RAM enables burst capture during transient events without data loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5255IRGCT | Same flash/RAM/timers/USCI count; includes ADC10_A (10 ext + 2 int channels); differs only in BSL type (I²C vs UART) | Required when analog sensing (e.g., battery voltage, thermistor) is needed alongside digital sensor aggregation | Select MSP430F5255IRGCT if on-chip ADC functionality is mandatory; otherwise MSP430F5254IRGCT reduces BOM cost and simplifies layout by omitting unused ADC routing |
| MSP430F5224IRGCT | Lower RAM (8 KB), no TB0 timer, only two USCI_A/B modules, 16 KB flash; same 64-pin RGC package and DVIO/DVCC architecture | Suitable for simpler sensor hubs with fewer concurrent peripherals and no RTC alarm requirements | Choose MSP430F5224IRGCT for cost-sensitive designs with reduced memory and interface needs; MSP430F5254IRGCT adds scalability for future feature expansion |
Compared with MSP430F5255IRGCT, MSP430F5254IRGCT removes ADC circuitry to lower static current and die cost while retaining identical timer, USCI, and power architecture - making it optimal for digital-only sensor aggregation. Against MSP430F5224IRGCT, it doubles RAM and serial interface count, enabling richer firmware and multi-bus sensor networks without changing PCB footprint.
Availability
MSP430F5254IRGCT is available at Aetrix Electronics and suitable for wearable sensor hubs, smart home power monitors, and Bluetooth® peripheral controllers requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for MSP430F5254IRGCT 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 signal chain technologies.
The MSP430F525x product line was engineered specifically for "always-on" system controller applications - emphasizing ultra-low standby current, split-rail I/O compatibility, and hardware-accelerated sensor interface capabilities in portable electronics.
FAQ
What is the maximum operating frequency of the MSP430F5254IRGCT?
The MSP430F5254IRGCT supports a maximum system clock frequency of 25 MHz, achieved via the FLL-controlled DCO or external HF crystal (XT2) up to 32 MHz. This allows high-speed instruction execution while maintaining ultra-low active-mode current (290 µA/MHz @ 8 MHz), making it suitable for real-time sensor preprocessing without compromising battery life. The MSP430F5254IRGCT's clock system dynamically scales performance to workload demands.
Does the MSP430F5254IRGCT support hardware UART auto-baud detection?
Yes, the MSP430F5254IRGCT's USCI_A modules (A0–A3) support enhanced UART with automatic baud-rate detection, enabling robust communication with variable-speed hosts such as BLE modules or legacy peripherals. This feature eliminates the need for pre-negotiated baud rates and simplifies firmware initialization. Each USCI_A instance in the MSP430F5254IRGCT can operate independently with this capability.
How many I/O pins on the MSP430F5254IRGCT operate at the DVIO voltage rail?
The MSP430F5254IRGCT provides 35 general-purpose I/O pins, of which 17 are assigned to the DVIO rail (1.62–1.98 V): P1.x (8), P2.x (8), P3.x (5), P4.x (8), P7.x (6), and PJ.x (4) - with overlap due to multiplexing. These pins are Schmitt-triggered and support external interrupts and wake-up. The DVIO domain ensures seamless interfacing with 1.8-V logic without level shifters, a key design advantage of the MSP430F5254IRGCT.
Can the MSP430F5254IRGCT operate without an external crystal?
Yes, the MSP430F5254IRGCT can operate without external crystals using its internal oscillators: VLO (10 kHz, ±10%), REFO (32.768 kHz, ±1%), and DCO (calibrated up to 25 MHz). For RTC functionality, however, a 32-kHz crystal on XIN/XOUT (P5.4/P5.5) is required to meet timekeeping accuracy specifications. The MSP430F5254IRGCT's flexible clock system allows crystal-free operation in non-RTC applications like simple sensor polling or UART bridging.
What debug interface does the MSP430F5254IRGCT support?
The MSP430F5254IRGCT supports both JTAG and Spy-Bi-Wire (SBW) debug interfaces via dedicated pins (TCK/TMS/TDI/TDO or SBWTCK/SBWTDIO). All JTAG/SBW signals are powered from the DVCC rail, ensuring compatibility with standard debug probes. The MSP430F5254IRGCT also includes ROM-based BSL accessible via UART on USCI_A0, enabling field firmware updates without dedicated debug hardware.
MSP430F5254IRGCT 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:
- 53
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K 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:
MSP430F5254IRGCT FAQ
1.How can I place an order for MSP430F5254IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5254IRGCT 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 MSP430F5254IRGCT reliable?
The price and inventory of MSP430F5254IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5254IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5254IRGCT?
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MSP430F5254IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5254IRGCT 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 MSP430F5254IRGCT?
For technical support, including MSP430F5254IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5254IRGCT requirements.
6.How does Aetrix verify that MSP430F5254IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5254IRGCT 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 MSP430F5254IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5254IRGCT?
All MSP430F5254IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5254IRGCT, 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 MSP430F5254IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5254IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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