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Texas Instruments MSP430F5437AIPN
- Part No.:
- MSP430F5437AIPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F5437AIPN.pdf
- Description:
- IC MCU 16BIT 256KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,007
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Product details
Overview
MSP430F5437AIPN from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller with 256 KB flash, 16 KB RAM, 12-bit ADC (14 external + 2 internal channels), three 16-bit timers (TA0/TA1/TB0), two USCI_A and two USCI_B modules, and RTC functionality - deployed in battery-powered sensor systems and portable meters.
For engineers reviewing the MSP430F5437AIPN datasheet, MSP430F5437AIPN pinout, MSP430F5437AIPN application, or MSP430F5437AIPN equivalent, key selection criteria include LPM3 standby current (1.7 µA at 2.2 V), 80-pin LQFP package compatibility, dual USCI_A/USCI_B interface flexibility, and integrated LDO core regulation for stable 1.8–3.6 V operation.
Technical Context
The MSP430F5437AIPN implements a unified clock system with FLL stabilization, supporting up to 25 MHz system clock via external high-frequency crystals (≤32 MHz) or internal DCO; it integrates a digitally controlled oscillator enabling 3.5 µs wakeup from LPM3.
Its power-management architecture includes a fully integrated LDO with programmable core voltage, supply supervision (SVM/SVS), brownout reset, and four low-power modes (LPM0–LPM4.5), with shutdown mode drawing only 0.1 µA at 3.0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPUXV2 with constant generators for optimized code efficiency in embedded firmware |
| Flash / RAM | 256 KB flash memory for program storage; 16 KB RAM for data and stack retention across all low-power modes |
| ADC Resolution | 12-bit SAR ADC with autoscan, 200 ksps sampling rate, and 14 external analog input channels |
| Low-Power Standby | 1.7 µA at 2.2 V in LPM3 with RTC, watchdog, and full RAM retention - enables multi-year battery life |
| Wakeup Time | 3.5 µs typical from LPM3 to active mode - critical for responsive event-driven sensing applications |
| USCI Interfaces | Two USCI_A (UART/IrDA/SPI) and two USCI_B (I²C/SPI) modules - supports concurrent wired communication protocols |
| Package | 80-pin LQFP (PN), 12 mm × 12 mm body size - compatible with standard surface-mount assembly processes |
Pinout & Package
Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, exposed pad not specified, RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0CLK/ACLK | Timer & Clock I/O | Configurable as TA0 clock input or ACLK output (divided by 1–32); enables precise timing source routing |
| P2.7/ADC12CLK/DMAE0 | ADC & DMA Control | Provides conversion clock signal to ADC12_A module; also serves as DMA external trigger input |
| P3.5/UCA0RXD/UCA0SOMI | USCI_A0 Serial I/O | Receives UART data or SPI slave-out data - supports automatic baud-rate detection in UART mode |
| P4.7/TB0CLK/SMCLK | Timer & System Clock | Accepts external clock for Timer_B0; outputs SMCLK for peripheral synchronization |
| P7.0/XIN & P7.1/XOUT | XT1 Crystal Interface | Connects 32-kHz crystal for low-power real-time clock operation with ±20 ppm stability |
| P5.0/A8/VREF+/VeREF+ | ADC Reference & Analog Input | Supplies positive reference voltage to ADC; also functions as analog input channel A8 |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LDO regulator | Programmable core voltage reduces external component count and improves noise immunity in mixed-signal designs |
| Hardware multiplier (MPY32) | Supports 32-bit arithmetic operations in single-cycle execution - accelerates math-intensive sensor algorithms |
| 3-channel DMA controller | Enables zero-CPU-overhead data transfers between peripherals and memory - extends battery life in burst-mode acquisition |
| RTC_A module with alarm | Real-time calendar clock with interrupt-capable alarms - eliminates need for external RTC IC in time-stamped logging |
| BSL with UART interface | On-chip bootloader allows field firmware updates via UART without JTAG hardware - simplifies maintenance |
Applications
| Analog Sensor Data Logger | Digital Thermostat Controller |
|---|---|
Use Scenario: Continuous temperature/humidity measurement with periodic wireless upload and deep-sleep intervals. IC Role / Device Role / Timing Role: Primary MCU managing ADC sampling, RTC-timed wakeups, and UART/USCI_B-based sensor bus communication. Use Value: 1.7 µA LPM3 current and 3.5 µs wakeup enable >5-year coin-cell operation with hourly readings. | Use Scenario: Residential HVAC control unit requiring precise ambient sensing, user interface, and relay actuation. IC Role / Device Role / Timing Role: Central controller executing PID loops, driving LCD segments, and managing I²C-connected environmental sensors. Use Value: Dual USCI_B modules support simultaneous I²C sensor reads and display interface without software arbitration. |
| Hand-Held Multimeter | Remote Industrial Monitor |
Use Scenario: Portable test instrument with autoranging, backlit LCD, and battery-level monitoring. IC Role / Device Role / Timing Role: Signal processor for 12-bit ADC digitization, LCD segment driver, and low-voltage supervisor. Use Value: Integrated 12-bit ADC with internal reference and autoscan handles multiple analog ranges without external op-amps. | Use Scenario: Unattended equipment monitoring node transmitting status over RS-485 or LoRaWAN gateway. IC Role / Device Role / Timing Role: Edge intelligence unit performing local threshold checks, timestamping events, and buffering telemetry. Use Value: Hardware DMA + USCI_A UART enables reliable packetized transmission while CPU remains in LPM3 between transmissions. |
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 |
|---|---|---|---|
| MSP430F5435AIPN | 192 KB flash, identical RAM, timer, ADC, and USCI configuration; same 80-pin LQFP package | Reduced program storage limits firmware complexity - suitable for fixed-function devices with smaller code footprints | Select when application firmware fits within 192 KB and cost sensitivity outweighs flash headroom needs |
| MSP430F5418AIPN | 128 KB flash, same RAM, timers, ADC, and USCI count; identical 80-pin LQFP mechanical footprint | Lower flash capacity constrains feature-rich firmware - best for cost-optimized, single-purpose controllers | Choose for high-volume metering or control units where minimal BOM cost drives part selection |
Compared with MSP430F5435AIPN and MSP430F5418AIPN, the MSP430F5437AIPN provides 256 KB flash headroom for future firmware updates and complex calibration routines while maintaining identical low-power behavior, peripheral set, and PCB layout compatibility.
Availability
MSP430F5437AIPN is available at Aetrix Electronics and suitable for analog sensor systems, digital thermostats, and hand-held meters requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430F5437AIPN 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 company delivering analog and embedded processing solutions for industrial, automotive, and consumer applications.
The MSP430F5437AIPN belongs to TI's MSP430F5xx ultra-low-power microcontroller family, engineered for extended battery life in portable measurement and sensing systems through aggressive power gating and fast wakeup capabilities.
FAQ
What is the maximum system clock frequency supported by the MSP430F5437AIPN?
The MSP430F5437AIPN supports a maximum system clock frequency of 25 MHz, achieved using the integrated FLL with external high-frequency crystals up to 32 MHz or the internal DCO. This frequency enables real-time processing of sensor data and communication protocol handling without compromising ultra-low-power operation in active mode.
Does the MSP430F5437AIPN include an integrated voltage regulator?
Yes, the MSP430F5437AIPN features a fully integrated low-dropout (LDO) regulator that provides programmable core supply voltage. This eliminates the need for an external regulator in most designs, reduces board space, and improves power supply rejection for sensitive analog circuits like the 12-bit ADC.
How many universal serial communication interfaces (USCIs) does the MSP430F5437AIPN have?
The MSP430F5437AIPN includes four USCIs: two USCI_A modules (supporting UART, IrDA, and SPI) and two USCI_B modules (supporting I²C and SPI). This dual-A/dual-B configuration allows concurrent use of UART for host communication and I²C for sensor interfacing without resource conflict.
What is the standby current consumption of the MSP430F5437AIPN in LPM3 mode?
The MSP430F5437AIPN draws 1.7 µA at 2.2 V in LPM3 mode with RTC, watchdog, and full RAM retention. At 3.0 V, standby current is 2.1 µA. This ultra-low quiescent current enables multi-year operation on primary lithium or coin-cell batteries in infrequently awakened applications.
Is the MSP430F5437AIPN pin-compatible with other members of the MSP430F543x family in the 80-pin LQFP package?
Yes, the MSP430F5437AIPN shares identical pinout and electrical characteristics with the MSP430F5435AIPN and MSP430F5418AIPN in the 80-pin PN package. This allows direct substitution in existing PCB layouts when upgrading flash capacity or adjusting feature sets without redesign.
MSP430F5437AIPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430F5xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- 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:
- 67
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K 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:
MSP430F5437AIPN FAQ
1.How can I place an order for MSP430F5437AIPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F5437AIPN 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 MSP430F5437AIPN reliable?
The price and inventory of MSP430F5437AIPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F5437AIPN is usually 5 days.
3.What payment methods are accepted for MSP430F5437AIPN?
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MSP430F5437AIPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F5437AIPN 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 MSP430F5437AIPN?
For technical support, including MSP430F5437AIPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F5437AIPN requirements.
6.How does Aetrix verify that MSP430F5437AIPN is sourced from the original manufacturer or authorized distributors?
All MSP430F5437AIPN 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 MSP430F5437AIPN meets industry standards.
7.What is the process for return or replacement of MSP430F5437AIPN?
All MSP430F5437AIPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F5437AIPN, 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 MSP430F5437AIPN part is unused and in its original packaging.
Return procedure for MSP430F5437AIPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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