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MSP430F5437IPN
Texas Instruments
IC MCU 16BIT 256KB FLASH 80LQFP
4703 Pcs New Original In Stock
MSP430 CPUXV2 MSP430F5xx Microcontroller IC 16-Bit 18MHz 256KB (256K x 8) FLASH 80-LQFP (12x12)
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5.0 / 5.0
- (279 Ratings)
MSP430F5437IPN
Product Overview
1349356
DiGi Electronics Part Number
MSP430F5437IPN-DGManufacturer
Texas Instruments
MSP430F5437IPN
Description
IC MCU 16BIT 256KB FLASH 80LQFPInventory
4703 Pcs New Original In Stock
MSP430 CPUXV2 MSP430F5xx Microcontroller IC 16-Bit 18MHz 256KB (256K x 8) FLASH 80-LQFP (12x12)
Quantity
Minimum 1
Minimum 1
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MSP430F5437IPN Technical Specifications
Category
Embedded, Microcontrollers
Packaging
Tray
Series
MSP430F5xx
Product Status
Not For New Designs
DiGi-Electronics Programmable
Verified
Core Processor
MSP430 CPUXV2
Core Size
16-Bit
Speed
18MHz
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)
2.2V ~ 3.6V
Data Converters
A/D 16x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
80-LQFP (12x12)
Package / Case
80-LQFP
Base Product Number
MSP430F5437
Datasheet & Documents
Manufacturer Product Page
MSP430F5437IPN Specifications
HTML Datasheet
MSP430F5437IPN-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
296-23451
296-42253-DG
296-23451-5
2156-MSP430F5437IPN
TEXTISMSP430F5437IPN
296-23451-DG
296-42253
MSP430A082IPN
Standard Package
119
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
Je salue la rapidité de leur service d’expédition et la qualité exemplaire de leurs produits. Tout est parfait.
Dec 02, 2025
The support infrastructure at DiGi Electronics is robust and dependable.
Dec 02, 2025
I appreciate their dedication to fast delivery and customer satisfaction.
Dec 02, 2025
DiGi Electronics consistently delivers cost savings for all our bulk purchases.
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Frequently Asked Questions (FAQ)
What are the key risks when replacing MSP430F5437IPN with a newer MSP430 model in an existing 18MHz real-time sensor design due to its 'Not For New Designs' status?
The MSP430F5437IPN is marked 'Not For New Designs,' so direct replacement with a newer MSP430 (e.g., MSP430FR5994 or MSP430F5xx successor) requires careful validation of clock accuracy, peripheral register mapping, and low-power mode behavior. While newer parts may offer FRAM or higher integration, they often differ in wake-up timing, I/O pin compatibility, and internal oscillator calibration—critical for time-sensitive sensor applications. Always verify interrupt latency and DMA channel allocation, as subtle differences can disrupt real-time data acquisition. Use TI’s Migration Guide from F5xx to FRxx series and perform bench testing under worst-case voltage (2.2V) and temperature (-40°C) conditions before committing to a redesign.
Can the MSP430F5437IPN safely drive 67 I/O lines simultaneously at 3.3V in a high-noise industrial environment, and what design safeguards are necessary?
While the MSP430F5437IPN supports 67 I/O pins, driving all simultaneously at 3.3V in a high-noise industrial setting risks exceeding total VDD current limits and introduces ground bounce or signal integrity issues. The device’s absolute maximum total I/O current is 150mA, so simultaneous switching of multiple high-capacitance loads can cause voltage droop or latch-up. Mitigate this by staggering I/O transitions, using series termination resistors, and partitioning I/O banks with local decoupling (100nF per power pin). Also, avoid routing high-speed signals (e.g., SPI at 18MHz) adjacent to analog inputs. For robust operation, implement a star-ground layout and isolate digital and analog sections—especially critical given the on-chip 12-bit ADC’s sensitivity to digital noise.
How does the MSP430F5437IPN compare to the STM32L476RG for ultra-low-power data logging applications requiring 256KB Flash and 16KB RAM?
The MSP430F5437IPN excels in deep sleep current (as low as 1.6µA in LPM3) and fast wake-up from interrupts, making it ideal for battery-powered data loggers with infrequent sampling. In contrast, the STM32L476RG offers higher performance (80MHz Cortex-M4) and more peripherals but typically draws 30–50µA in STOP mode. However, the STM32L476RG supports dynamic voltage scaling and has better ESD protection, which may benefit harsh environments. If your application prioritizes microamp-level sleep current and deterministic wake-up timing over processing throughput, the MSP430F5437IPN remains a strong choice—but note its discontinuation risk. For new designs, consider the MSP430FR5994 as a pin-compatible FRAM alternative with non-volatile RAM benefits.
What are the hidden thermal and layout pitfalls when using the MSP430F5437IPN in a compact 80-LQFP (12x12mm) design operating near 85°C ambient?
The MSP430F5437IPN’s 80-LQFP package has limited thermal dissipation, and operating near its 85°C TA limit in a dense layout can cause localized heating that degrades Flash endurance and increases leakage current. Without a thermal pad or via stitching to an internal ground plane, junction temperature may exceed safe limits during sustained 18MHz operation with active ADC and DMA. Always connect the exposed thermal pad (if present) to a grounded copper pour and ensure adequate airflow. Additionally, keep high-current traces (e.g., from PWM or GPIO banks) away from the crystal oscillator and ADC reference inputs to prevent thermal drift and noise coupling. Monitor junction temperature using the on-chip temperature sensor and derate clock speed if needed above 70°C ambient.
Is it safe to use the internal oscillator of the MSP430F5437IPN for UART communication at 115200 bps over LIN bus in automotive-like environments?
The MSP430F5437IPN’s internal oscillator (±1.5% accuracy over temperature and voltage) may not meet LIN bus timing requirements (±2% bit rate tolerance) across the full -40°C to 85°C range, especially at 115200 bps where cumulative error can cause framing failures. While acceptable for point-to-point UART in controlled environments, automotive or industrial LIN networks demand higher precision. For reliable operation, use an external 4MHz or 8MHz crystal with load capacitors matched to the crystal’s specifications. Calibrate the DCO using the factory-trimmed values in Flash (if available) and validate baud rate error using an oscilloscope or logic analyzer under temperature cycling. If cost constraints prevent an external crystal, reduce UART speed to 9600 bps to improve margin, but this limits LIN compliance.
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MSP430F5437IPN CAD Models
Texas Instruments MSP430F5437IPN PCB symbols & footprints
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