Texas Instruments MSP430F5328IZQE
- Part No.:
- MSP430F5328IZQE
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-VFBGA
- Datasheet:
-
MSP430F5328IZQE.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80BGA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MSP430F5328IZQE from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 128 KB flash, 10 KB RAM, 47 GPIO, 12-bit ADC (10 external + 2 internal channels), dual USCI modules (UART/IrDA/SPI/I²C), and integrated LDO. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable data loggers requiring sub-2 µA standby current and 3.5 µs wake-up.
For engineers reviewing the MSP430F5328IZQE datasheet, MSP430F5328IZQE pinout, MSP430F5328IZQE application, or MSP430F5328IZQE equivalent, key selection criteria include its MicroStar Junior™ BGA-80 package, 47 I/O count, RTC-enabled low-power modes (LPM3: 1.9 µA @ 3 V), and peripheral set optimized for analog-digital mixed-signal edge sensing.
Technical Context
The MSP430F5328IZQE implements a unified clock system with FLL stabilization, dual crystal support (XT1: 32 kHz, XT2: up to 32 MHz), and three internal sources (VLO, REFO, DCO). Its power management includes programmable core voltage regulation via integrated LDO and brownout detection with hysteresis.
It integrates three 16-bit timers (TA0 with 5 capture/compare registers, TA1/TA2 with 3 each, TB0 with 7), hardware multiplier for 32-bit operations, 3-channel DMA, and comparator B with 8 input channels - all synchronized to the same clock domain and accessible in LPM3 with RTC active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators; enables high code density and deterministic 3.5 µs wake-up from LPM3. |
| Flash / RAM | 128 KB flash + 10 KB RAM (8 KB main + 2 KB auxiliary); supports in-system programming without external voltage. |
| ADC12_A | 12-bit SAR ADC with autoscan, 200 ksps, 10 external + 2 internal channels; uses internal reference or AVCC for single-supply operation. |
| Low-Power Modes | LPM3: 1.9 µA @ 3 V (RTC + watchdog + full RAM retention); LPM4: 1.1 µA @ 3 V; LPM4.5: 0.18 µA @ 3 V. |
| USCI Peripherals | USCI_A0/A1: UART (auto-baud detect), IrDA, SPI; USCI_B0/B1: I²C, SPI; enables dual-protocol wired communication without external transceivers. |
| I/O Count | 47 programmable GPIO across Ports P1–P6, PU; includes Schmitt-trigger inputs, configurable drive strength, and interrupt capability on all pins. |
| Package | MicroStar Junior™ BGA-80 (5 mm × 5 mm); requires controlled thermal pad connection to VSS per TI recommendation. |
Pinout & Package
MicroStar Junior™ BGA-80 package (5 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad connected to VSS. Pin mapping follows TI's standardized signal naming for F5328/F5326/F5324 family in ZQE/ZXH packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / JTAG debug interface | Active-low reset with glitch filter; doubles as NMI source and Spy-Bi-Wire test/data I/O for in-circuit debugging. |
| P1.0/TA0CLK/ACLK | Port 1.0 / Timer A0 clock input / Auxiliary clock | Configurable as GPIO, timer clock source, or 32-kHz crystal oscillator output (ACLK); supports low-frequency timing critical for RTC. |
| P5.4/XIN & P5.5/XOUT | XT1 crystal oscillator terminals | Supports 32-kHz watch crystal; enables precise real-time clock operation with automatic gain control and fault detection. |
| P2.6/RTCCLK/DMAE0 | RTC clock input / DMA event trigger | Accepts external 32-kHz clock or internal ACLK; triggers DMA transfer on RTC alarm or calendar event - enabling zero-CPU data logging. |
| PU.0 & PU.1 | Port U pins powered by LDOO rail | Dedicated I/O supplied by regulated LDO output; isolated from DVCC noise, suitable for precision analog control or level-shifting interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated LDO | Programmable core voltage (VCORE) with dynamic adjustment; eliminates need for external regulator and simplifies power sequencing. |
| Unified clock system | Single FLL loop stabilizes MCLK/SMCLK/ACLK from multiple sources (XT1, XT2, VLO, REFO, DCO); reduces clock tree complexity and jitter. |
| Hardware multiplier | 32-bit MAC unit executing multiply-accumulate in one cycle; accelerates sensor fusion, filtering, and cryptographic primitives in firmware. |
| RTC_A module | Calendar mode with alarm, hold, and calibration registers; retains time across LPM4 and wakes CPU on scheduled events - essential for duty-cycled sensing. |
| Comparator B | 8-channel analog comparator with selectable references (internal/external), hysteresis control, and interrupt generation; replaces discrete comparators in threshold-detection circuits. |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
|
Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and light at 10-minute intervals, transmitting via BLE or LoRaWAN. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, RTC-triggered sampling, low-power sleep, and serial interface handoff to radio IC. Use Value: Sub-2 µA LPM3 current extends 2000-mAh coin cell life beyond 3 years; 3.5 µs wake-up ensures minimal latency during burst sampling. |
Use Scenario: Handheld device recording vibration, pressure, and acceleration during field equipment maintenance, storing data to SD card. IC Role / Device Role / Timing Role: Real-time data aggregator with timestamping, ADC oversampling, and DMA-driven flash writes to minimize CPU load. Use Value: 12-bit ADC with autoscan and internal reference enables accurate multi-sensor measurement without external references; 128 KB flash stores >100k samples. |
| Smart Meter Interface | Industrial Condition Monitor |
|
Use Scenario: Tamper-resistant utility meter add-on board monitoring voltage sag/swell, neutral current imbalance, and temperature drift. IC Role / Device Role / Timing Role: Fault-detection co-processor interfacing with metrology IC via SPI, triggering alerts on SVS/SVM events and thermal thresholds. Use Value: Integrated supply supervisors (SVS/SVM) with programmable thresholds provide autonomous overvoltage/undervoltage response without host intervention. |
Use Scenario: DIN-rail mounted module analyzing motor current harmonics and bearing temperature in HVAC systems using FFT-based firmware. IC Role / Device Role / Timing Role: Edge-processing node performing real-time spectral analysis via hardware multiplier and timer-synchronized ADC sampling. Use Value: 3-channel DMA transfers ADC results directly to RAM while CPU computes FFT; 16-bit timers generate precise PWM for fan speed control. |
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 |
|---|---|---|---|
| MSP430F5328IRGC | VQFN-64 (9 mm × 9 mm) vs. ZQE BGA-80; identical peripherals, flash/RAM, and I/O count (47). | Better thermal dissipation and PCB assembly compatibility for prototyping; larger footprint limits ultra-compact designs. | Select IRGC for manual soldering or thermal-heavy use; ZQE preferred for space-constrained, high-volume production. |
| MSP430F5326IZQE | 96 KB flash / 8 KB RAM vs. 128 KB / 10 KB; otherwise identical peripheral set, package, and power specs. | Suitable for firmware with smaller memory footprint; not recommended if bootloader, OTA updates, or large sensor buffers are required. | Choose F5326IZQE only when code size is verified ≤96 KB; F5328IZQE provides headroom for future feature expansion. |
Compared with MSP430F5328IRGC and MSP430F5326IZQE, the MSP430F5328IZQE uniquely balances minimal 5×5 mm BGA footprint, maximum on-chip memory, and full peripheral complement - making it optimal for next-generation compact, long-life IoT endpoints where layout area and firmware scalability are both critical.
Availability
MSP430F5328IZQE is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, and industrial condition monitors requiring stable component supply and lifecycle continuity.
Supply support for MSP430F5328IZQE 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 low-power MCU innovation.
The MSP430F532x product line delivers ultra-low-power mixed-signal microcontrollers for battery-operated sensing, measurement, and control applications - emphasizing energy efficiency, integration, and robustness in harsh environments.
FAQ
What is the operating voltage range for the MSP430F5328IZQE?
The MSP430F5328IZQE operates from 1.8 V to 3.6 V. Its integrated LDO allows core voltage (VCORE) to be programmed independently within this range, supporting dynamic voltage scaling to optimize active-mode current. At 3 V, typical active-mode current is 290 µA/MHz during flash execution - confirmed in TI's SLAS678G datasheet Section 8.4.
Does the MSP430F5328IZQE support real-time clock functionality with battery backup?
Yes, the MSP430F5328IZQE includes RTC_A module with calendar mode, alarm, and hold functions. It operates in LPM3 with 32-kHz crystal (XT1) and retains full RAM - drawing only 1.9 µA at 3 V. The RTC continues running during deep sleep and can wake the CPU on scheduled events, as documented in Section 9.9.11 of the datasheet.
How many analog input channels does the MSP430F5328IZQE ADC support?
The MSP430F5328IZQE features ADC12_A with 12 total channels: 10 external analog inputs (A0–A9) and 2 internal sources (temperature sensor and VREF+/2). This configuration is specific to the F5328/F5326/F5324 variants, differing from the 14+2 channel version in F5329/F5327/F5325 devices - per Table 6-1 in SLAS678G.
Is the MSP430F5328IZQE pin-compatible with other members of the F532x family?
No - the MSP430F5328IZQE uses MicroStar Junior™ BGA-80, while F5329/F5327/F5325 use LQFP-80 and F5328IRGC uses VQFN-64. Though functional register maps and peripherals are aligned across the family, physical pinouts differ significantly. Migration requires PCB redesign; see Figures 7-1 through 7-3 for exact package-specific mappings.
What debug interface does the MSP430F5328IZQE support?
The MSP430F5328IZQE supports Spy-Bi-Wire (SBW) via RST/NMI/SBWTDIO and TEST/SBWTCK pins - a 2-wire JTAG variant enabling full in-circuit debugging and flash programming. This interface is compatible with TI's MSP-FET and LaunchPad development tools, and requires no additional pins beyond the reset line, as specified in Section 9.6 of the datasheet.
MSP430F5328IZQE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-VFBGA
- Series:
- MSP430F5xx
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
MSP430F5328IZQE FAQ
1.How can I place an order for MSP430F5328IZQE through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5328IZQE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of MSP430F5328IZQE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5328IZQE is usually 5 days.
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5.How can I obtain technical support or documentation for MSP430F5328IZQE?
For technical support, including MSP430F5328IZQE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5328IZQE requirements.
6.How does Aetrix verify that MSP430F5328IZQE is sourced from the original manufacturer or authorized distributors?
All MSP430F5328IZQE 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 MSP430F5328IZQE meets industry standards.
7.What is the process for return or replacement of MSP430F5328IZQE?
All MSP430F5328IZQE units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5328IZQE, 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 MSP430F5328IZQE part is unused and in its original packaging.
Return procedure for MSP430F5328IZQE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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