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Texas Instruments MSP430F5324IZXHR
- Part No.:
- MSP430F5324IZXHR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-VFBGA
- Datasheet:
-
MSP430F5324IZXHR.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,874
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Product details
Overview
MSP430F5324IZXHR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 64 KB flash, 6 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 hardware multiplier - designed for battery-powered sensor nodes and data loggers operating from 1.8 V to 3.6 V.
For engineers reviewing the MSP430F5324IZXHR datasheet, MSP430F5324IZXHR pinout, MSP430F5324IZXHR application, or MSP430F5324IZXHR equivalent, key selection criteria include standby current (1.9 µA in LPM3), wake-up time (3.5 µs), 47 GPIO count, nFBGA-80 (ZXH) package compatibility, and integrated LDO regulation for single-supply operation.
Technical Context
The MSP430F5324IZXHR 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 via integrated LDO, brownout reset, supply voltage supervision, and five low-power modes (LPM0–LPM4.5).
Peripherals are memory-mapped and interrupt-driven: ADC12_A supports autoscan across 12 channels with internal reference; USCI modules provide independent UART/IrDA/SPI (USCI_A) and I²C/SPI (USCI_B); Timer_B0 offers seven capture/compare registers with shadowing for glitch-free PWM; and DMA enables zero-CPU-overhead data transfers between peripherals and memory.
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 response. |
| Memory | 64 KB flash + 6 KB RAM (8 KB + 2 KB configuration) - sufficient for firmware with sensor fusion, communication stacks, and data buffering. |
| ADC | 12-bit SAR ADC with 200 ksps, 10 external + 2 internal input channels, autoscan, and internal reference - supports multi-sensor analog acquisition without external references. |
| Low-Power Modes | LPM3: 1.9 µA at 3 V (RTC active); LPM4: 1.1 µA; LPM4.5: 0.18 µA - enables multi-year battery life in intermittent-sampling applications. |
| Timers | Three Timer_A instances (5/3/3 CC registers) + one Timer_B (7 CC registers with shadowing) - supports simultaneous PWM generation, input capture, and RTC/calendar functions. |
| Communication | Two USCIs: USCI_A0/A1 (UART/IrDA/SPI), USCI_B0/B1 (I²C/SPI) - enables concurrent wired sensor interface (I²C) and host communication (UART) with automatic baud-rate detection. |
| I/O Count | 47 programmable GPIO pins with Schmitt-trigger inputs, configurable drive strength, and port mapping control - matches compact PCB layouts while retaining peripheral flexibility. |
Pinout & Package
nFBGA-80 (ZXH) package, 5 mm × 5 mm, 0.5-mm pitch, thermal pad connected to VSS - optimized for space-constrained, thermally sensitive portable designs.
| 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 event handling, and 2-wire Spy-Bi-Wire programming and debugging. |
| P1.0/TA0CLK/ACLK | Port 1 bit 0 / Timer_A0 clock source / Auxiliary clock input | Configurable as general I/O or dedicated clock input for ACLK domain - enables precise RTC timing using external 32-kHz crystal (XT1). |
| P5.4/XIN & P5.5/XOUT | Crystal oscillator input/output (XT1) | Connects to 32-kHz watch crystal for RTC operation - requires external load capacitors; supports low-frequency, low-power timing with full RAM retention in LPM3. |
| P2.6/RTCCLK/DMAE0 | RTC clock output / DMA trigger enable | Provides synchronized 1-Hz or programmable RTC tick signal and can initiate DMA transfers on RTC events - eliminates CPU polling for time-based data logging. |
| P3.0–P3.1/UCB0SIMO/SOMI | USCI_B0 I²C data lines (SDA/SCL) | Dedicated hardware I²C interface supporting standard/fast-mode - enables direct connection to digital sensors (e.g., temperature, humidity) without bit-banging overhead. |
| LDOO / LDOI | LDO output / LDO input rails | Integrated 3.3-V regulator supplies core logic (DVCC) and I/O (AVCC/DVCC2) - simplifies power design by eliminating external LDO and enabling single 3.3-V or higher input supply. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated LDO | Programmable core voltage regulation from single input (up to 3.6 V), reducing BOM count and PCB area versus discrete regulators. |
| Ultra-fast wake-up | 3.5 µs typical transition from LPM3 to active mode - captures transient sensor events without missing critical data windows. |
| Hardware multiplier | 32-bit multiply-accumulate support in single-cycle execution - accelerates filtering, calibration, and cryptographic operations in firmware. |
| 3-channel DMA | Enables autonomous data movement between ADC, USCI, timers, and memory - frees CPU for application logic during high-throughput acquisition or communication. |
| Real-time clock with alarm | Calendar mode with year/month/day/hour/minute/second and configurable alarms - provides accurate time-stamping for data loggers without external RTC IC. |
Applications
| Wireless Sensor Node | Portable Data Logger |
|---|---|
|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and pressure at 1-minute intervals, transmitting via UART to BLE module. IC Role / Device Role / Timing Role: Central controller managing sensor I²C reads, ADC sampling, RTC time-stamping, and UART transmission scheduling. Use Value: LPM3 current of 1.9 µA extends CR2032 battery life beyond 3 years; integrated LDO eliminates external regulator; 47 GPIO allow future expansion. |
Use Scenario: Handheld industrial logger recording vibration, voltage, and current waveforms during equipment maintenance checks. IC Role / Device Role / Timing Role: Real-time data acquisition engine triggering ADC at 200 ksps, buffering samples in RAM, and timestamping with RTC calendar. Use Value: Hardware DMA moves ADC data directly to RAM without CPU intervention; 12-bit ADC with internal reference ensures accuracy without external components. |
| Smart Meter Interface | Low-Power Industrial Controller |
|
Use Scenario: Sub-metering module interfacing with utility meter pulse outputs and RS-485 host, logging energy consumption every 15 minutes. IC Role / Device Role / Timing Role: Pulse counter (via TA0 capture), RS-485 UART transceiver interface (USCI_A0), and secure timekeeping (RTC + alarm). Use Value: Wake-up from LPM4.5 (0.18 µA) on meter pulse edge ensures minimal quiescent draw; dual USCI modules handle isolated communication and local sensing concurrently. |
Use Scenario: DIN-rail mounted controller monitoring HVAC valve position, ambient temperature, and supply voltage in building automation systems. IC Role / Device Role / Timing Role: System supervisor executing periodic self-tests, reading analog sensors, driving PWM actuators, and reporting status over I²C to master MCU. Use Value: Integrated comparator (COMP_B) enables rail-to-rail supply monitoring; Timer_B0 shadow registers ensure jitter-free PWM for motor control; 47 GPIO support mixed analog/digital I/O. |
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 |
|---|---|---|---|
| MSP430F5326IZXH | Same 64 KB flash / 6 KB RAM / 47 GPIO / ZXH package; differs only in factory-programmed device ID and minor errata revisions. | Identical peripheral set and electrical specs - suitable for drop-in replacement where firmware is compatible across F5324/F5326 variants. | Select MSP430F5326IZXH if targeting TI's latest production revision with documented errata fixes not present in F5324. |
| MSP430F5328IZXH | 128 KB flash / 10 KB RAM / same 47 GPIO / ZXH package - adds 64 KB flash and 4 KB RAM but retains identical peripheral count and low-power profile. | Preferred when firmware growth or future feature expansion (e.g., OTA updates, larger protocol stacks) requires additional non-volatile storage and RAM headroom. | Choose MSP430F5328IZXH for new designs needing scalability; MSP430F5324IZXHR remains optimal for cost- and size-sensitive fixed-function deployments. |
Compared with MSP430F5326IZXH, the MSP430F5324IZXHR offers identical functionality at potentially lower unit cost due to earlier production revision; versus MSP430F5328IZXH, it trades flash/RAM capacity for tighter BOM control and smaller firmware footprint - critical for certified, immutable embedded deployments.
Availability
MSP430F5324IZXHR 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 MSP430F5324IZXHR 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 microcontroller design and manufacturing.
The MSP430F532x product line targets battery-operated measurement and sensing applications, emphasizing extended runtime, integrated analog front-ends, and robust real-time control - exemplified by the MSP430F5324IZXHR's LPM3 current and RTC+ADC co-optimization.
FAQ
What is the maximum system clock frequency supported by the MSP430F5324IZXHR?
The MSP430F5324IZXHR supports a maximum system clock (MCLK) frequency of 25 MHz, achieved via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is confirmed in the device's functional block diagram and Section 8.19 (DCO Frequency) of the SLAS678G datasheet. The MSP430F5324IZXHR maintains full peripheral operation and timing specification compliance at this rate, enabling responsive real-time control without compromising ultra-low-power operation in active mode.
Does the MSP430F5324IZXHR include an integrated DC-DC converter or only an LDO?
The MSP430F5324IZXHR integrates a low-dropout regulator (LDO), not a switching DC-DC converter. As specified in Section 1 (Features) and Section 4 (Functional Block Diagram), it features a "fully integrated LDO with programmable regulated core supply voltage" that accepts input voltages from 1.8 V to 3.6 V and delivers stable 3.3-V DVCC and AVCC rails. This LDO architecture prioritizes low noise and simplicity over conversion efficiency - appropriate for its target use cases in precision analog sensing and low-noise timing applications.
How many external analog input channels does the 12-bit ADC in the MSP430F5324IZXHR support?
The MSP430F5324IZXHR's ADC12_A module supports 10 external analog input channels, as explicitly stated in Table 6-1 (Device Comparison) and the functional block diagram for ZXH/RGC-package devices. This is two fewer than the 14-channel variant used in the 63-I/O PN-package family members (e.g., MSP430F5329), reflecting the pin-count reduction in the 47-I/O configuration. Internal channels include VREF+ and temperature sensor - both usable without external connections.
Can the MSP430F5324IZXHR operate from a 1.8-V supply in active mode?
Yes, the MSP430F5324IZXHR supports active-mode operation down to 1.8 V, as confirmed in Section 1 (Features): "Low supply voltage range: 3.6 V down to 1.8 V". At 1.8 V, the device maintains full functionality including flash execution, RAM retention, and peripheral operation - though maximum system clock frequency is reduced per the recommended operating conditions in Section 8.3. This capability enables direct integration with single-cell Li-ion or alkaline battery systems without intermediate regulation.
What debug interface does the MSP430F5324IZXHR use, and is JTAG supported?
The MSP430F5324IZXHR uses the 2-wire Spy-Bi-Wire (SBW) interface for programming and debugging, accessible via the RST/NMI/SBWTDIO and TEST/SBWTCK pins. While legacy JTAG (4-wire) is not supported on this device, SBW provides full debug functionality - including breakpoints, register inspection, and flash programming - with reduced pin count. This is documented in Section 7.1 (Pin Diagrams) and Section 9.6 (JTAG Operation), which clarifies SBW as the standard interface for F532x devices in ZXH/RGC packages.
MSP430F5324IZXHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-VFBGA
- 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:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b SAR
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5324IZXHR FAQ
1.How can I place an order for MSP430F5324IZXHR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5324IZXHR 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 MSP430F5324IZXHR reliable?
The price and inventory of MSP430F5324IZXHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5324IZXHR is usually 5 days.
3.What payment methods are accepted for MSP430F5324IZXHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5324IZXHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5324IZXHR?
MSP430F5324IZXHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5324IZXHR 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 MSP430F5324IZXHR?
For technical support, including MSP430F5324IZXHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5324IZXHR requirements.
6.How does Aetrix verify that MSP430F5324IZXHR is sourced from the original manufacturer or authorized distributors?
All MSP430F5324IZXHR 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 MSP430F5324IZXHR meets industry standards.
7.What is the process for return or replacement of MSP430F5324IZXHR?
All MSP430F5324IZXHR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5324IZXHR, 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 MSP430F5324IZXHR part is unused and in its original packaging.
Return procedure for MSP430F5324IZXHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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