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Texas Instruments MSP430F5328IRGCT
- Part No.:
- MSP430F5328IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F5328IRGCT.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:322
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Product details
Overview
MSP430F5328IRGCT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 128 KB flash, 10 KB RAM, integrated 3.3-V LDO, 12-bit ADC (10 external + 2 internal channels), three 16-bit timers (TA0/TA1/TA2 and TB0), two USCI modules (UART/IrDA/SPI/I²C), RTC, and hardware multiplier - designed for battery-powered sensor systems and data loggers operating from 1.8 V to 3.6 V.
For engineers reviewing the MSP430F5328IRGCT datasheet, MSP430F5328IRGCT pinout, MSP430F5328IRGCT application, or MSP430F5328IRGCT equivalent, key selection criteria include standby current (1.9 µA in LPM3), wake-up time (3.5 µs), 47 GPIO count, VQFN-64 package footprint, and compatibility with TI's MSP430F5xx toolchain and bootloader.
Technical Context
The MSP430F5328IRGCT implements a unified clock system with FLL-based frequency stabilization, dual crystal support (XT1 for 32-kHz RTC, XT2 up to 32 MHz), and low-power internal sources (VLO, REFO). Its power management includes programmable core voltage regulation via integrated LDO and brownout detection with hysteresis.
Peripherals are memory-mapped and interrupt-driven: ADC12_A supports autoscan across 12 channels with internal reference; USCI_A0/A1 handle UART/IrDA/SPI; USCI_B0/B1 support I²C and SPI; Timer_B0 provides seven capture/compare registers with shadowing for glitch-free PWM; RTC_A includes alarm and calendar functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators and 25-MHz max system clock - enables high code efficiency and deterministic real-time execution. |
| Memory | 128 KB flash + 10 KB RAM (8 KB main + 2 KB backup) - supports firmware updates in-field and retains critical data during LPM4.5 shutdown (0.18 µA). |
| ADC | 12-bit SAR ADC with 200 ksps, 10 external + 2 internal input channels, autoscan, and internal reference - eliminates need for external voltage reference in sensor signal conditioning. |
| Low-Power Modes | LPM3: 1.9 µA @ 3 V (RTC + watchdog + full RAM retention); LPM4: 1.1 µA; LPM4.5: 0.18 µA - extends coin-cell battery life to multi-year operation in data loggers. |
| Timers | TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 CC with shadow registers) - enables simultaneous PWM generation, input capture, and interval timing without CPU intervention. |
| Communication | Two USCI modules: USCI_Ax (UART/IrDA/SPI), USCI_Bx (I²C/SPI) - supports dual-interface sensor fusion (e.g., I²C temperature + UART telemetry) with independent clock domains. |
| I/O Count | 47 programmable GPIO pins with Schmitt-trigger inputs, configurable drive strength, and port mapping control - matches compact VQFN-64 layouts while supporting mixed analog/digital routing. |
Pinout & Package
VQFN-64 (RGC) package, 9 mm × 9 mm body, 0.5-mm pitch, exposed thermal pad (to be connected to VSS per TI recommendation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / JTAG debug I/O | Single-pin multifunction interface for safe reset assertion, NMI-triggered fault handling, and 2-wire Spy-Bi-Wire programming - reduces debug footprint vs. full JTAG. |
| P1.0/TA0CLK/ACLK | Port 1.0 / Timer_A0 clock input / Auxiliary clock output | Configurable as GPIO, timer clock source, or 32-kHz ACLK output - enables flexible clock tree distribution without external buffers. |
| P5.4/XIN & P5.5/XOUT | XT1 crystal oscillator input/output | Dedicated low-frequency crystal terminals for RTC accuracy - supports 32.768-kHz watch crystals with internal load capacitance tuning. |
| P2.6/RTCCLK/DMAE0 | RTC clock input / DMA trigger enable | Direct RTC clock feed to timer or DMA event generator - allows autonomous timestamping of sensor reads without CPU wake-up. |
| P3.0–P3.1/UCB0SIMO/SOMI | I²C data lines (SDA/SCL) | Hardware-accelerated I²C master/slave interface with automatic START/STOP generation - simplifies communication with digital sensors (e.g., BME280, TMP117). |
| VCORE | Core voltage supply (LDO output) | Internally regulated 1.8–2.2 V core rail - decouples CPU/peripheral performance from input voltage fluctuations and enables stable operation down to 1.8 V VCC. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated LDO | Programmable core voltage (1.8–2.2 V) with dynamic adjustment - maintains optimal power/performance trade-off across operating modes and supply conditions. |
| Ultra-fast wake-up | 3.5 µs from LPM3 to active mode - captures transient events (e.g., motion triggers, voltage sags) before they expire, reducing missed samples. |
| Hardware multiplier | 32-bit MAC operations in single cycle - accelerates FIR filtering, FFT preprocessing, and cryptographic primitives in sensor edge processing. |
| Three-channel DMA | Autonomous data movement between ADC, USCI, and RAM - eliminates CPU overhead during burst sampling or continuous streaming. |
| Real-time clock with alarm | Calendar-mode RTC with configurable alarms and battery-backed operation - enables scheduled wake-ups for periodic sensing without external real-time clocks. |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
|
Use Scenario: Battery-powered environmental monitor transmitting temperature/humidity via sub-GHz RF link. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition (ADC), protocol stack (USCI_A0 UART), low-power scheduling (RTC alarm), and sleep/wake coordination. Use Value: 1.9 µA LPM3 current and 3.5 µs wake-up ensure >5-year CR2032 life while capturing rapid transients; integrated LDO stabilizes RF IC supply. |
Use Scenario: Handheld device recording vibration, pressure, and ambient light at 100 Hz for industrial predictive maintenance. IC Role / Device Role / Timing Role: Data aggregator with timestamped storage (RTC + DMA → flash), analog front-end (ADC + comparator), and USB/UART host interface. Use Value: 12-bit ADC autoscan across 10 channels enables synchronized multi-sensor sampling; 128 KB flash stores >1M samples without external memory. |
| Smart Meter Interface | Low-Power Industrial Controller |
|
Use Scenario: Utility meter add-on module monitoring tamper events, voltage sags, and pulse outputs from mechanical counters. IC Role / Device Role / Timing Role: Event detector using comparator B inputs, time-stamping unit (RTC), and secure UART interface to main meter MCU. Use Value: Comparator B with 8 channels and fast response detects zero-crossing anomalies; LPM4.5 (0.18 µA) preserves state during long idle periods. |
Use Scenario: DIN-rail mounted PLC I/O expander acquiring analog inputs and driving isolated digital outputs via optocouplers. IC Role / Device Role / Timing Role: Peripheral manager handling analog input scaling (ADC + REF), digital I/O control (P1–P6), and fieldbus communication (USCI_B0 I²C to local bus). Use Value: 47 GPIO support mixed signal routing; internal 2.5-V reference ensures ±0.2% ADC accuracy across temperature without trimming. |
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 |
|---|---|---|---|
| MSP430F5326IRGCT | Identical architecture and peripherals, but 96 KB flash and 8 KB RAM - 32 KB less program memory and 2 KB less RAM than MSP430F5328IRGCT. | Suitable for simpler firmware with smaller code footprint; not recommended if bootloader, RTOS, or future feature expansion is required. | Select when cost sensitivity outweighs memory headroom needs and application fits within 96 KB flash constraint. |
| MSP430F5324IRGCT | Same 47-pin VQFN package and peripheral set, but 64 KB flash and 6 KB RAM - 64 KB less flash and 4 KB less RAM than MSP430F5328IRGCT. | Targeted at minimal-feature implementations (e.g., single-sensor readout only); lacks margin for complex algorithms or dual-interface stacks. | Choose only for fixed-function, memory-constrained designs where MSP430F5328IRGCT's extra resources are unused. |
Compared with MSP430F5326IRGCT and MSP430F5324IRGCT, the MSP430F5328IRGCT delivers maximum on-chip memory headroom in the 64-pin VQFN family - enabling robust bootloader implementation, field-upgradable firmware, and concurrent multi-peripheral operation without external memory.
Availability
MSP430F5328IRGCT is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, and smart meter interfaces requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430F5328IRGCT 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 leadership in ultra-low-power microcontrollers.
The MSP430F5328IRGCT belongs to the MSP430F5xx ultra-low-power MCU family, engineered specifically for extended-battery-life applications in sensor systems, metering, and portable instrumentation where energy efficiency and peripheral integration are critical.
FAQ
What is the maximum operating frequency of the MSP430F5328IRGCT?
The MSP430F5328IRGCT supports a maximum system clock frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is validated across the full 1.8 V to 3.6 V supply range and –40°C to 85°C temperature range per TI's SLAS678G specification table.
Does the MSP430F5328IRGCT support hardware UART auto-baud rate detection?
Yes, the MSP430F5328IRGCT's USCI_A modules (USCI_A0 and USCI_A1) include enhanced UART functionality with automatic baud-rate detection - allowing reliable communication initialization without prior knowledge of the remote device's transmission speed.
How many external analog input channels does the ADC12_A module support on the MSP430F5328IRGCT?
The ADC12_A module on the MSP430F5328IRGCT supports 10 external analog input channels (A0–A9), in addition to 2 internal channels (temperature sensor and VREF+), as confirmed in the Device Comparison table and functional block diagram for RGC-package variants.
What is the purpose of the VCORE pin on the MSP430F5328IRGCT?
The VCORE pin on the MSP430F5328IRGCT provides access to the output of the integrated low-dropout regulator (LDO), supplying the stabilized 1.8–2.2 V core voltage to the CPU and digital logic - it must be externally decoupled with a 1-µF capacitor per TI layout guidelines.
Can the MSP430F5328IRGCT operate from a 1.8-V supply?
Yes, the MSP430F5328IRGCT is fully specified for operation from 1.8 V to 3.6 V, including all peripherals and flash programming. At 1.8 V, it achieves 1.4 µA standby (LPM3 with VLO) and maintains 25-MHz DCO capability with appropriate configuration per Section 8.19 of the datasheet.
MSP430F5328IRGCT 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:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K 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:
MSP430F5328IRGCT FAQ
1.How can I place an order for MSP430F5328IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5328IRGCT 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 MSP430F5328IRGCT reliable?
The price and inventory of MSP430F5328IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5328IRGCT is usually 5 days.
3.What payment methods are accepted for MSP430F5328IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5328IRGCT transactions.
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4.How is shipping managed for MSP430F5328IRGCT?
MSP430F5328IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5328IRGCT 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 MSP430F5328IRGCT?
For technical support, including MSP430F5328IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5328IRGCT requirements.
6.How does Aetrix verify that MSP430F5328IRGCT is sourced from the original manufacturer or authorized distributors?
All MSP430F5328IRGCT 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 MSP430F5328IRGCT meets industry standards.
7.What is the process for return or replacement of MSP430F5328IRGCT?
All MSP430F5328IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5328IRGCT, 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 MSP430F5328IRGCT part is unused and in its original packaging.
Return procedure for MSP430F5328IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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