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Texas Instruments MSP430F5326IZQE
- Part No.:
- MSP430F5326IZQE
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-VFBGA
- Datasheet:
-
MSP430F5326IZQE.pdf
- Description:
- IC MCU 16BIT 96KB FLASH 80BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,837
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Product details
Overview
MSP430F5326IZQE 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), three 16-bit timers (TA0/TA1/TA2 and TB0), two USCIs (UART/IrDA/SPI/I²C), RTC, and 47 GPIO pins in a MicroStar Junior™ BGA-80 package. It targets battery-powered sensor systems requiring fast wake-up (3.5 µs) and long-term operation on coin cells.
For engineers reviewing the MSP430F5326IZQE datasheet, MSP430F5326IZQE pinout, MSP430F5326IZQE application, or MSP430F5326IZQE equivalent, key selection criteria include its 47-I/O count in ZQE packaging, LPM4.5 shutdown current (0.18 µA), 12-bit ADC autoscan capability, dual USCI support for mixed serial protocols, and compatibility with TI's MSP430F5xx toolchain and firmware libraries.
Technical Context
The MSP430F5326IZQE implements a unified clock system with FLL-based frequency stabilization, dual crystal oscillators (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: Timer_A instances support capture/compare/PWM with up to five registers (TA0), while Timer_B (TB0) provides seven shadow-capable compare registers. The 12-bit ADC operates at 200 ksps with internal reference and sample-and-hold, and Comparator_B offers eight channels with selectable hysteresis and output routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators for high code efficiency in embedded control loops |
| Flash / RAM | 96 KB flash (in-system programmable) + 8 KB main RAM + 2 KB USB RAM for low-latency peripheral buffering |
| ADC Resolution | 12-bit SAR ADC with autoscan across 10 external + 2 internal inputs; supports single-shot or continuous conversion modes |
| Low-Power Modes | LPM4.5 draws 0.18 µA at 3 V - enables multi-year operation on CR2032 batteries in maintenance-free deployments |
| Wake-up Time | 3.5 µs from LPM3 to active mode - meets real-time response requirements for event-triggered sensing |
| I/O Count | 47 programmable GPIO pins with Schmitt-trigger inputs, full/reduced drive strength, and configurable pull-up/down |
| Package | MicroStar Junior™ BGA-80 (5 mm × 5 mm, 0.5-mm pitch) - optimized for space-constrained portable PCB layouts |
Pinout & Package
MicroStar Junior™ BGA-80 package (5 mm × 5 mm, 0.5-mm pitch) with exposed thermal pad connected to VSS per TI recommendation. Pinout conforms to Figure 7-3 of SLAS678G for MSP430F5326IZQE, MSP430F5326IZXH, and MSP430F5326IRGC variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / Non-maskable interrupt / JTAG debug I/O | Single-pin multifunction interface supporting production reset, NMI-triggered fault handling, and Spy-Bi-Wire programming |
| P1.0/TA0CLK/ACLK | Port 1 bit 0 / Timer_A0 clock input / Auxiliary clock | Configurable as general-purpose I/O or dedicated clock source for timer subsystem and RTC synchronization |
| P5.4/XIN & P5.5/XOUT | Crystal oscillator input/output | Supports 32-kHz watch crystal (XT1) for RTC; requires external load capacitors per layout guidelines |
| P2.6/RTCCLK/DMAE0 | Real-time clock output / DMA trigger enable | Provides gated RTC clock signal to peripherals and initiates DMA transfers on time-based events |
| AVCC1 / AVSS1 | Analog power supply / ground | Dedicated analog domain rails decoupled separately from digital DVCC/DVSS to minimize noise coupling into ADC and comparator |
| LDOO / LDOI | LDO output / LDO input | On-chip regulator delivers stable 3.3 V to core logic; LDOI accepts 3.3–3.6 V input with internal dropout compensation |
| PU.0 / PU.1 | Port U bits 0 and 1 | Specialized I/O powered by LDOO rail - used for high-precision analog reference routing or isolated control signals |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LDO with programmable core voltage | Eliminates need for external voltage regulators and reduces BOM count in compact sensor nodes |
| FLL-controlled DCO with crystal calibration | Enables precise timing without external high-frequency crystals - critical for UART baud-rate accuracy and RTC stability |
| Three independent 16-bit timers with capture/compare | Supports simultaneous PWM generation, input capture for pulse-width measurement, and interval timing without CPU overhead |
| Dual USCI modules (A0/A1/B0/B1) | Allows concurrent UART (with auto-baud detection) and I²C communication - ideal for sensor fusion with multiple transducers |
| Hardware multiplier for 32-bit operations | Accelerates fixed-point math in filtering algorithms (e.g., FIR, PID) and reduces active-mode execution time |
| 3-channel DMA controller | Enables zero-CPU-overhead data movement between ADC, RAM, and USCI buffers - essential for continuous logging |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
Use Scenario: Battery-powered environmental monitor transmitting temperature/humidity via BLE or sub-GHz radio. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, timestamping via RTC, low-power scheduling, and serial interface to radio SoC. Use Value: LPM4.5 current (0.18 µA) extends CR2032 life beyond 5 years; 3.5 µs wake-up ensures responsive event capture without missing transient conditions. | Use Scenario: Handheld device recording vibration, pressure, and acceleration during field inspections. IC Role / Device Role / Timing Role: Host MCU coordinating multi-channel ADC sampling, timestamping, flash storage, and USB mass-storage interface. Use Value: 12-bit ADC autoscan handles 10+ analog sensors sequentially; hardware multiplier accelerates RMS calculation for vibration analysis. |
| Smart Meter Interface Module | Industrial Condition Monitor |
Use Scenario: Add-on module for legacy meters providing pulse counting, tamper detection, and secure local comms. IC Role / Device Role / Timing Role: Isolated interface processor handling opto-isolated inputs, secure boot, and encrypted SPI communication with meter ASIC. Use Value: 47 GPIO support dedicated pins for pulse counters, tamper switches, and secure element I²C; LDO simplifies power design in constrained meter headspace. | Use Scenario: DIN-rail mounted unit monitoring motor winding temperature, bearing vibration, and supply harmonics. IC Role / Device Role / Timing Role: Real-time edge processor performing FFT preprocessing, alarm thresholding, and Modbus RTU reporting. Use Value: Dual USCI allows simultaneous UART (Modbus) and SPI (accelerometer/thermistor array); RTC enables scheduled diagnostics and log rotation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5326IRGC | VQFN-64 package (9 mm × 9 mm); same flash/RAM/peripherals but different pinout and thermal pad connection requirement | Better thermal performance and hand-solderability; less board area efficiency than ZQE | Select when thermal management or prototyping ease outweighs miniaturization needs |
| MSP430F5328IZQE | 128 KB flash / 10 KB RAM; identical ZQE-80 package, pinout, and peripheral set | Higher firmware headroom for future feature expansion or bootloader complexity | Select when firmware size exceeds 96 KB or long-term scalability is prioritized over cost optimization |
Compared with MSP430F5326IZQE, the IRGC variant trades package density for thermal and assembly flexibility, while the MSP430F5328IZQE offers direct upward compatibility in footprint and functionality - both require no schematic changes but differ in layout constraints and memory capacity planning.
Availability
MSP430F5326IZQE is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, and smart meter interface modules requiring stable component supply and long-lifecycle support.
Supply support for MSP430F5326IZQE 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 over 50 years of innovation in low-power design.
The MSP430F532x product line was engineered for ultra-low-power portable measurement applications - emphasizing extended battery life, rapid wake-up, and integrated analog front-end capabilities in compact packages.
FAQ
What is the maximum operating frequency of the MSP430F5326IZQE?
The MSP430F5326IZQE supports a maximum system clock frequency of 25 MHz, achieved using the FLL-controlled DCO with XT2 crystal input (up to 32 MHz) or internal reference calibration. This frequency enables real-time processing of sensor data streams while maintaining ultra-low active-mode current (290 µA/MHz at 8 MHz, 3 V).
Does the MSP430F5326IZQE support hardware debugging?
Yes, the MSP430F5326IZQE supports hardware debugging via Spy-Bi-Wire (SBW) using the RST/NMI/SBWTDIO and TEST/SBWTCK pins. This two-wire interface enables full JTAG-like functionality including breakpoints, register inspection, and flash programming without requiring a full 4-pin JTAG header.
How many ADC input channels does the MSP430F5326IZQE have?
The MSP430F5326IZQE integrates a 12-bit ADC12_A module with 12 total input channels: 10 external analog inputs (A0–A9) and 2 internal sources (temperature sensor and VREF+/2). Channel selection is managed through the ADC12MCTLx registers with autoscan enabling sequential conversion without CPU intervention.
What is the purpose of the PU.0 and PU.1 pins on the MSP430F5326IZQE?
The PU.0 and PU.1 pins on the MSP430F5326IZQE are dedicated Port U I/O lines supplied by the LDOO rail, enabling precise analog reference routing or isolated control signaling. They support standard digital functions but are specifically designed for low-noise connections to external references, DAC outputs, or analog switches in mixed-signal designs.
Is the MSP430F5326IZQE RoHS compliant and lead-free?
Yes, the MSP430F5326IZQE is RoHS compliant and lead-free, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) requirements. The MicroStar Junior™ BGA-80 package uses lead-free solder finish and complies with TI's environmental policy for hazardous substance restrictions.
MSP430F5326IZQE 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:
- 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:
MSP430F5326IZQE FAQ
1.How can I place an order for MSP430F5326IZQE through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5326IZQE 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 MSP430F5326IZQE reliable?
The price and inventory of MSP430F5326IZQE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5326IZQE is usually 5 days.
3.What payment methods are accepted for MSP430F5326IZQE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5326IZQE transactions.
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4.How is shipping managed for MSP430F5326IZQE?
MSP430F5326IZQE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5326IZQE 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 MSP430F5326IZQE?
For technical support, including MSP430F5326IZQE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5326IZQE requirements.
6.How does Aetrix verify that MSP430F5326IZQE is sourced from the original manufacturer or authorized distributors?
All MSP430F5326IZQE 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 MSP430F5326IZQE meets industry standards.
7.What is the process for return or replacement of MSP430F5326IZQE?
All MSP430F5326IZQE units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5326IZQE, 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 MSP430F5326IZQE part is unused and in its original packaging.
Return procedure for MSP430F5326IZQE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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