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Texas Instruments MSP430F5253IRGCT
- Part No.:
- MSP430F5253IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5253IRGCT.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,549
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Product details
Overview
MSP430F5253IRGCT 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, 16 KB RAM, dual-supply operation (DVCC: 1.8–3.6 V; DVIO: 1.62–1.98 V), 35 general-purpose I/Os (18 on DVCC, 17 on DVIO), and four USCI_A modules supporting UART/IrDA/SPI for sensor hub and power-management roles.
For engineers reviewing the MSP430F5253IRGCT datasheet, MSP430F5253IRGCT pinout, MSP430F5253IRGCT application, or MSP430F5253IRGCT equivalent, key selection criteria include its split-rail I/O architecture enabling direct interface with 1.8-V application processors, sub-2-µA LPM3 standby current, 3.5-µs wake-up time, and UART-focused serial peripheral configuration.
Technical Context
The MSP430F5253IRGCT implements a unified clock system with FLL stabilization, VLO and REFO internal sources, and support for 32-kHz XT1 and up to 32-MHz XT2 crystals. Its power management includes a programmable LDO core regulator, supply voltage supervision (SVS/SVM), and brownout reset - all optimized for rapid transitions between active (290 µA/MHz) and ultra-low-power modes (1.3 µA in LPM4).
It integrates four 16-bit timers (TA0/TA1/TA2/TB0), a 10-bit ADC with 12-channel input (10 external, 2 internal), hardware multiplier, 3-channel DMA, RTC with alarm, and comparator_B - all operating under dual-voltage domain control where peripherals like USCI_A0–A3 are configured for UART/IrDA/SPI and require DVIO-supplied I/O pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with extended memory addressing, enabling efficient execution of real-time sensor fusion algorithms in RAM-constrained environments. |
| Flash / RAM | 128 KB flash program memory and 16 KB RAM - sufficient for embedded firmware with multi-sensor data buffering and state-machine logic without external memory. |
| Supply Rails | Dual-supply: DVCC = 1.8–3.6 V (core/peripherals); DVIO = 1.62–1.98 V (I/O ports P1–P4, P7, PJ) - eliminates level shifters when interfacing with 1.8-V SoCs or sensors. |
| Ultra-Low-Power Modes | LPM3: 2.3 µA at 3.0 V (RTC + full RAM retention); LPM4: 1.3 µA; LPM4.5: 0.18 µA - enables multi-year battery life in maintenance-free IoT endpoints. |
| Wake-up Time | 3.5 µs from LPM3 to active mode - ensures responsive event handling (e.g., touch interrupt or motion detection) without perceptible latency. |
| Serial Interfaces | Four USCI_A modules (UART/IrDA/SPI only) and four USCI_B modules (I²C/SPI only) - supports concurrent communication with UART-based BLE modules, I²C sensors, and SPI flash or displays. |
| Analog Peripherals | 10-bit ADC10_A with 12 inputs (10 external), internal reference, sample-and-hold; Comparator_B with 8 channels - enables analog signal monitoring (battery voltage, temperature) alongside digital control. |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm, thermally enhanced with exposed thermal pad. Pin mapping validated per TI SLAS903D Figure 7-1 and Table 7-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0–P1.7 | DVIO-domain GPIO / TA0CLK / ACLK | 1.8-V I/O bank with timer clock input and low-frequency oscillator support - used for wake-up-capable sensor interrupts and RTC synchronization. |
| P2.0–P2.7 | DVIO-domain GPIO / USCI_B3 / RTCCLK | 1.8-V I/O bank supporting I²C/SPI and real-time clock input - connects directly to 1.8-V accelerometers or environmental sensors. |
| P3.0–P3.4 | DVIO-domain GPIO / USCI_B0 / UCA0 | 1.8-V I/O bank with dedicated UART/I²C interfaces - enables simultaneous BLE UART and local I²C sensor bus without voltage translation. |
| P4.0–P4.7 | DVIO-domain GPIO / USCI_A1/A3 / PM functions | 1.8-V I/O bank with peripheral module routing - supports power-managed UART and SPI for display or storage peripherals. |
| P6.0–P6.7 | DVCC-domain GPIO / TA2 / CBx / A0–A7 | 3.0-V I/O bank with analog comparator inputs and Timer_A2 clock - used for higher-voltage analog monitoring or legacy 3.3-V peripheral interfaces. |
| DVIO / DVCC / DVSS / AVCC / AVSS | Power supply terminals | Dual-rail separation isolates noise-sensitive analog (AVCC/AVSS) and digital I/O (DVIO/DVCC) domains - critical for stable ADC and RTC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Split-rail I/O architecture | Enables native 1.8-V interface to application processors and sensors while maintaining higher core voltage for performance and noise immunity. |
| Four USCI_A modules (UART/IrDA/SPI) | Supports concurrent UART-based wireless communication (e.g., BLE, Zigbee) and SPI peripherals without software bit-banging or resource contention. |
| Hardware multiplier (MPY32) | Accelerates fixed-point math for sensor calibration, filtering, and encryption - reduces active-mode CPU time and total energy per computation. |
| RTC_A with alarm and calendar | Provides autonomous timekeeping and scheduled wake-up events (e.g., hourly data logging) without host CPU involvement, extending battery life. |
| 3-channel DMA controller | Offloads data movement (ADC → RAM, UART TX/RX buffers) from CPU - preserves low-power states during high-throughput sensor streaming. |
Applications
| Wearable Health Monitor | Smart Home Sensor Hub |
|---|---|
Use Scenario: Continuous acquisition of ECG, accelerometer, and temperature data from analog and digital sensors, with local preprocessing and BLE transmission. IC Role / Device Role / Timing Role: System controller managing sensor polling, data aggregation, RTC-timed uploads, and low-latency wake-up on motion or anomaly detection. Use Value: Dual-voltage I/O eliminates level shifters for 1.8-V MEMS sensors; sub-2-µA LPM3 extends coin-cell battery life beyond 12 months. | Use Scenario: Centralized coordination of Zigbee/Z-Wave radios, environmental sensors (humidity, CO₂), and local display via SPI. IC Role / Device Role / Timing Role: Always-on hub executing protocol translation, sensor fusion, and scheduled reporting using RTC alarm and DMA-accelerated UART/I²C transfers. Use Value: Four USCI_A modules enable dedicated UART for radio and SPI for display; 16 KB RAM accommodates multiple protocol stacks and buffer queues. |
| Industrial Battery Management Unit | Portable Data Logger |
Use Scenario: Monitoring cell voltage, temperature, and charge/discharge current in Li-ion packs, with fault logging and CAN/UART telemetry. IC Role / Device Role / Timing Role: Real-time supervisor performing ADC sampling, comparator-triggered protection, and time-stamped event logging to flash memory. Use Value: 10-bit ADC with internal reference ensures accurate voltage measurement across temperature; LPM4.5 (0.18 µA) enables multi-year storage mode. | Use Scenario: Autonomous collection of GPS position, ambient light, and barometric pressure over days/weeks in field-deployed equipment. IC Role / Device Role / Timing Role: Low-power logger using RTC alarm to trigger periodic sensor reads, process data, and store in flash with CRC integrity check. Use Value: Hardware CRC16 accelerator ensures data reliability; 128 KB flash stores months of timestamped logs without external memory. |
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 |
|---|---|---|---|
| MSP430F5252IRGCT | Same 128 KB flash, but only 16 KB RAM and no ADC10_A module - lacks analog sensing capability. | Suitable for pure digital control or UART-only sensor hubs without analog inputs. | Select when analog conversion is unnecessary and cost optimization is prioritized over sensor flexibility. |
| MSP430F5255IRGCT | Identical memory and peripherals, but USCI_A modules configured for UART/IrDA/SPI and BSL type is I²C instead of UART. | Better suited for systems requiring I²C-based bootloader updates or secondary I²C master functionality. | Choose when field firmware updates via I²C are required, or when I²C slave bootloading is part of the system architecture. |
Compared with MSP430F5252IRGCT, the MSP430F5253IRGCT adds a 10-bit ADC and comparator for analog monitoring, while differing from MSP430F5255IRGCT in BSL interface type and default USCI_A configuration - making it optimal for UART-centric, analog-inclusive always-on controllers.
Availability
MSP430F5253IRGCT is available at Aetrix Electronics and suitable for wearable health monitors, smart home sensor hubs, and industrial battery management units requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MSP430F5253IRGCT 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 specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in ultra-low-power design.
The MSP430F525x product line was engineered specifically for "always-on" system controller applications - delivering split-rail I/O, deep-sleep efficiency, and integrated peripherals to replace discrete power-management ICs and extend battery life in portable electronics.
FAQ
What is the maximum operating frequency of the MSP430F5253IRGCT?
The MSP430F5253IRGCT supports a system clock up to 25 MHz, enabled by its integrated FLL control loop and compatibility with HF crystals up to 32 MHz (XT2). This allows deterministic real-time execution of sensor fusion algorithms and high-speed UART communication at baud rates exceeding 1 Mbps, while maintaining ultra-low active-mode current consumption of 290 µA/MHz at 3.0 V.
Does the MSP430F5253IRGCT support hardware debugging interfaces?
Yes, the MSP430F5253IRGCT supports both JTAG and Spy-Bi-Wire (SBW) debug interfaces. All JTAG and SBW pins operate on the DVCC supply domain, ensuring compatibility with standard TI debug tools like MSP-FET and Code Composer Studio. The device also includes a factory-programmed ROM-based bootloader (BSL) accessible via UART, enabling in-system programming without external debug hardware.
How many I/O pins on the MSP430F5253IRGCT operate at the 1.8-V DVIO rail?
The MSP430F5253IRGCT provides 35 general-purpose I/O pins, of which 17 are assigned to the DVIO rail (P1.x, P2.x, P3.x, P4.x, P7.x, PJ.x) and operate at 1.62–1.98 V. These pins support Schmitt-trigger inputs, programmable drive strength, and interrupt/wakeup capability - enabling direct connection to 1.8-V sensors, RF modules, and application processors without external level-shifting circuitry.
What ADC resolution and channel count does the MSP430F5253IRGCT provide?
The MSP430F5253IRGCT integrates a 10-bit successive-approximation ADC (ADC10_A) with 12 input channels: 10 external analog inputs (A0–A9) and 2 internal references (VeREF+, VeREF−). It supports sample-and-hold, internal voltage reference (1.5 V or 2.5 V), and programmable conversion timing - delivering ±1 LSB INL/DNL accuracy and 200 ksps throughput for precision battery voltage monitoring and environmental sensing.
Is the MSP430F5253IRGCT pin-compatible with other devices in the MSP430F525x family?
Yes, the MSP430F5253IRGCT in the 64-pin VQFN (RGC) package shares identical pinout and footprint with all other RGC-packaged members of the MSP430F525x family, including MSP430F5252/5254/5255/5256/5257/5258/5259. This enables drop-in replacement during design iteration or qualification - though functional differences (e.g., ADC presence, RAM size, BSL type) must be verified in firmware and system-level validation.
MSP430F5253IRGCT 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:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 10x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5253IRGCT FAQ
1.How can I place an order for MSP430F5253IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5253IRGCT 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 MSP430F5253IRGCT reliable?
The price and inventory of MSP430F5253IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5253IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5253IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5253IRGCT transactions.
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4.How is shipping managed for MSP430F5253IRGCT?
MSP430F5253IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5253IRGCT 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 MSP430F5253IRGCT?
For technical support, including MSP430F5253IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5253IRGCT requirements.
6.How does Aetrix verify that MSP430F5253IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5253IRGCT 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 MSP430F5253IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5253IRGCT?
All MSP430F5253IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5253IRGCT, 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 MSP430F5253IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5253IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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