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Texas Instruments MSP430F5325IPNR
- Part No.:
- MSP430F5325IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F5325IPNR.pdf
- Description:
- IC MCU 16BIT 64KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
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Product details
Overview
MSP430F5325IPNR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with integrated 3.3-V LDO, 64 KB flash, 6 KB + 2 KB RAM, 63 I/O pins, 12-bit ADC (14 external + 2 internal channels), and dual USCI modules supporting UART/IrDA/SPI/I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring long runtime and precise analog acquisition.
For engineers reviewing the MSP430F5325IPNR datasheet, MSP430F5325IPNR pinout, MSP430F5325IPNR application, or MSP430F5325IPNR equivalent, key selection criteria include its 1.1 µA LPM4 shutdown current, 3.5 µs wake-up time, RTC-integrated basic timer, hardware multiplier for 32-bit math, and LQFP-80 package compatibility with F5329/F5327 family members.
Technical Context
The MSP430F5325IPNR implements a unified clock system with FLL-based frequency stabilization, dual crystal oscillators (XT1 up to 32 kHz, 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 organized around three 16-bit Timer_A instances (5/3/3 capture/compare registers), one 16-bit Timer_B (7 shadow registers), DMA controller (3-channel), and comparator_B (12-channel). The device supports simultaneous analog sensing (ADC12_A autoscan) and serial communication (USCI_A0/A1 for UART/IrDA/SPI; USCI_B0/B1 for I²C/SPI) without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators for optimized code density and execution efficiency |
| Flash / RAM | 64 KB flash memory with 48-segment erase; 6 KB main + 2 KB auxiliary RAM for data buffering and ISR context retention |
| Supply Range | 1.8 V–3.6 V operation enables direct Li-ion or coin-cell battery use without external regulators |
| LPM4 Current | 1.1 µA at 3 V ensures multi-year battery life in always-on monitoring applications |
| Wake-up Time | 3.5 µs from LPM3 to active mode supports rapid response to external interrupts or RTC alarms |
| ADC Resolution | 12-bit SAR ADC with 200 ksps sampling rate, internal reference, and autoscan across 14 external analog inputs |
| Timer Resources | Four 16-bit timers: TA0 (5 CC), TA1 (3 CC), TA2 (3 CC), TB0 (7 shadow CC) for PWM, capture, and real-time scheduling |
Pinout & Package
LQFP-80 package (12 mm × 12 mm) with exposed thermal pad connected to DVSS; 63 configurable I/O pins distributed across ports P1–P8 and PU, plus dedicated JTAG/SBW debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset, non-maskable interrupt, debug I/O | Single-pin multifunction interface for safe reset assertion, 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 GPIO, timer clock source, or 32-kHz crystal oscillator output for RTC timing |
| P5.4/XIN & P5.5/XOUT | Low-frequency crystal oscillator terminals | Supports 32.768-kHz watch crystal connection for precision RTC operation with full RAM retention |
| P2.6/RTCCLK/DMAE0 | Real-time clock output / DMA trigger enable | Provides synchronous RTC tick signal to peripherals and initiates DMA transfers on alarm events |
| PU.0 & PU.1 | Port U bits 0 and 1 | Powered by LDOO rail; used for low-noise analog reference routing or isolated digital control signals |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3.3-V LDO | Eliminates need for external voltage regulator; supports programmable core voltage scaling for dynamic power optimization |
| Dual USCI Modules | USCI_A0/A1 handle UART/IrDA/SPI concurrently; USCI_B0/B1 support I²C master/slave and SPI-enabling mixed-protocol sensor hubs |
| Hardware Multiplier (MPY32) | Executes 32-bit signed/unsigned multiply-accumulate operations in single cycle-accelerating FFT, filtering, and sensor fusion |
| RTC-A Module | Real-time calendar clock with alarm, calibration, and battery-backup capability using external 32-kHz crystal |
| 3-Channel DMA | Offloads CPU during ADC conversions, UART transfers, and memory moves-reducing active-mode duration and power consumption |
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 MCU managing sensor readout, timestamping via RTC-A, low-power sleep scheduling, and serial interface to transceiver. Use Value: 1.1 µA LPM4 current extends 2-AA battery life beyond 5 years; 3.5 µs wake-up ensures timely response to sensor triggers or radio interrupts. | Use Scenario: Handheld industrial logger capturing vibration, pressure, and ambient light over 72-hour cycles. IC Role / Device Role / Timing Role: Host controller acquiring analog data via ADC12_A autoscan, storing timestamps and values in RAM, and writing to flash on schedule. Use Value: 12-bit ADC with internal reference and 200 ksps sampling enables high-fidelity waveform capture; hardware multiplier accelerates RMS calculation. |
| Smart Meter Interface | Low-Power Industrial Controller |
Use Scenario: Tamper-resistant utility meter communicating via optical port or RS-485 with secure firmware updates. IC Role / Device Role / Timing Role: Secure bootloader host with JTAG/SBW debug disable, UART-based field update handler, and RTC-driven billing interval timer. Use Value: Integrated LDO ensures stable 3.3-V supply under varying line conditions; dual USCI modules support simultaneous optical and RS-485 interfaces. | Use Scenario: DIN-rail mounted PLC module controlling solenoids and reading analog process signals in factory automation. IC Role / Device Role / Timing Role: Real-time scheduler executing PID loops via Timer_B PWM outputs while monitoring safety interlocks via comparator_B. Use Value: 63 I/O pins support direct connection to multiple sensors/actuators; comparator_B with 12 channels enables fast overvoltage/undervoltage detection without ADC overhead. |
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 |
|---|---|---|---|
| MSP430F5327IPNR | 96 KB flash, 8 KB + 2 KB RAM, identical peripheral set and pinout | Higher memory capacity for larger firmware or extended data logging buffers | Select when firmware size exceeds 64 KB or RAM requirements exceed 6 KB + 2 KB |
| MSP430F5329IPNR | 128 KB flash, 10 KB + 2 KB RAM, same LQFP-80 package and peripheral configuration | Supports complex protocol stacks (e.g., Zigbee SE, DLMS) and multi-sensor fusion algorithms | Choose for future-proofing, OTA updates, or applications requiring >96 KB code space |
Compared with MSP430F5327IPNR and MSP430F5329IPNR, the MSP430F5325IPNR provides optimal cost-performance balance for mid-complexity sensor nodes where 64 KB flash and 6 KB RAM suffice-avoiding over-provisioned memory while retaining full peripheral functionality and pin compatibility.
Availability
MSP430F5325IPNR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable data loggers, and smart meter interfaces requiring stable component supply and long-term production support.
Supply support for MSP430F5325IPNR 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 microcontroller innovation.
The MSP430F532x product line delivers ultra-low-power mixed-signal MCUs optimized for battery-operated measurement systems, emphasizing extended runtime, precision analog integration, and robust real-time control capabilities.
FAQ
What is the maximum system clock frequency supported by the MSP430F5325IPNR?
The MSP430F5325IPNR supports up to 25 MHz system clock frequency via its integrated digitally controlled oscillator (DCO) or external high-frequency crystal (XT2) up to 32 MHz. This enables high-speed computation for real-time signal processing while maintaining ultra-low-power operation through dynamic clock gating and multiple low-power modes.
Does the MSP430F5325IPNR include hardware debugging support?
Yes, the MSP430F5325IPNR includes full JTAG and Spy-Bi-Wire (SBW) debug interfaces accessible via dedicated pins (RST/NMI/SBWTDIO, PJ.0–PJ.3, TEST/SBWTCK). These enable non-intrusive breakpoints, real-time register inspection, flash programming, and low-power mode debugging without requiring additional hardware probes.
How many analog input channels does the ADC12_A module support on the MSP430F5325IPNR?
The ADC12_A module on the MSP430F5325IPNR supports 14 external analog input channels (A0–A13) plus 2 internal channels (temperature sensor and VREF+/VeREF+), totaling 16 selectable inputs. Channel selection is fully programmable, and autoscan mode allows sequential conversion without CPU intervention.
Is the MSP430F5325IPNR pin-compatible with other devices in the F532x family?
Yes, the MSP430F5325IPNR in the LQFP-80 (PN) package shares identical pinout and electrical characteristics with MSP430F5327IPNR and MSP430F5329IPNR. This allows direct PCB reuse across memory variants-64 KB, 96 KB, and 128 KB flash-without layout changes or signal re-routing.
What power supply architecture does the MSP430F5325IPNR use to achieve ultra-low standby current?
The MSP430F5325IPNR achieves 1.9 µA standby (LPM3) and 1.1 µA shutdown (LPM4) current through its integrated low-dropout regulator (LDO), supply voltage supervisor (SVS), and selective peripheral gating. The LDO maintains stable 3.3-V core voltage while SVS monitors VCC and triggers brownout reset-enabling reliable operation down to 1.8 V with minimal quiescent draw.
MSP430F5325IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- 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:
- 63
- 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 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F5325IPNR FAQ
1.How can I place an order for MSP430F5325IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5325IPNR 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 MSP430F5325IPNR reliable?
The price and inventory of MSP430F5325IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5325IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F5325IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F5325IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F5325IPNR?
MSP430F5325IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5325IPNR 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 MSP430F5325IPNR?
For technical support, including MSP430F5325IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5325IPNR requirements.
6.How does Aetrix verify that MSP430F5325IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F5325IPNR 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 MSP430F5325IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F5325IPNR?
All MSP430F5325IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5325IPNR, 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 MSP430F5325IPNR part is unused and in its original packaging.
Return procedure for MSP430F5325IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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