STM32L431KBU6TRAlternatives & Equivalent Parts
About STM32L431KBU6TR
STM32L431KBU6TR is a Integrated Circuit component manufactured by STMicroelectronics. It comes in a Quad Flat No-Lead package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | STM32L431KBU6TRSource | STM32L431KCU6TR | STM32L431KBU3TR | STM32L412KBU6TR | STM32L431KBU6 | STM32L431KCU6 | STM32L431KBU3 | STM32L432KBU6 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package Type | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead |
| Pin Count | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C |
| Price | $1.8537 | $2.1857 | $2.1568 | $1.6678 | $1.7986 | $2.1317 | $2.2887 | $2.0760 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||||||
| Factory Lead Time | 12 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | 12 Weeks | — | 12 Weeks | — |
| YTEOL | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Has ADC | YES | YES | YES | YES | YES | YES | YES | YES |
| Bit Size | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
| Boundary Scan | YES | YES | YES | YES | YES | — | YES | — |
| CPU Family | CORTEX-M4 | CORTEX-M4 | CORTEX-M4 | CORTEX-M4 | CORTEX-M4 | — | CORTEX-M4 | CORTEX-M4 |
| Clock Frequency-Max | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz | 48 MHz |
| DAC Channels | YES | YES | YES | NO | YES | — | YES | YES |
| DMA Channels | YES | YES | YES | YES | YES | YES | YES | YES |
| JESD-30 Code | S-XQCC-N32 | S-XQCC-N32 | S-XQCC-N32 | S-XQCC-N32 | S-XQCC-N32 | — | S-PQCC-N32 | S-XQCC-N32 |
| JESD-609 Code | e3 | e3 | — | — | e3 | e3 | — | e3 |
| Number of DMA Channels | 14 | 14 | 14 | 14 | 14 | — | 14 | — |
| Number of I/O Lines | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Number of Timers | 9 | 9 | 9 | 8 | 9 | — | 9 | — |
| On Chip Program ROM Width | 8 | 8 | 8 | 8 | 8 | — | 8 | 8 |
| PWM Channels | YES | YES | YES | YES | YES | YES | YES | YES |
| Package Body Material | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | — | PLASTIC/EPOXY | UNSPECIFIED |
| Package Shape | SQUARE | SQUARE | SQUARE | SQUARE | SQUARE | SQUARE | SQUARE | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 | 260 | — | 260 | 260 | 260 | NOT SPECIFIED | 260 |
| RAM (bytes) | 65536 | 65536 | 65536 | 40960 | 65536 | — | 65536 | 65536 |
| ROM (words) | 131072 | 262144 | 131072 | 131072 | 131072 | — | 131072 | 131072 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH | FLASH | — | FLASH | FLASH |
| Speed | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 80 MHz |
| Supply Voltage-Max | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage-Min | 1.8 V | 1.8 V | 1.71 V | 1.8 V | 1.8 V | 1.8 V | 1.71 V | 1.8 V |
| Supply Voltage-Nom | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 1.8 V | 3 V | 3 V | 1.8 V |
| Surface Mount | YES | YES | YES | YES | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS | CMOS | — | CMOS | — |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL | AUTOMOTIVE | INDUSTRIAL | INDUSTRIAL | — | — | — |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) | — | Tin (Sn) - immersion | Matte Tin (Sn) | Matte Tin (Sn) | — | Matte Tin (Sn) |
| Terminal Form | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD | NO LEAD |
| Terminal Pitch | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm | 0.5 mm |
| Terminal Position | QUAD | QUAD | QUAD | QUAD | QUAD | QUAD | QUAD | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC | MICROCONTROLLER, RISC |
| Date Of Intro | — | — | — | 2018-11-19 | — | — | — | 2018-05-25 |
| Format | — | — | — | FLOATING-POINT | FLOATING POINT | — | FLOATING POINT | — |
| Integrated Cache | — | — | — | YES | YES | — | YES | — |
| Low Power Mode | — | — | — | YES | YES | — | YES | — |
| Number of External Interrupts | — | — | — | 16 | 16 | — | 16 | — |
| Number of Serial I/Os | — | — | — | 3 | 4 | — | 4 | — |
| On Chip Data RAM Width | — | — | — | 8 | 8 | — | 8 | — |
| Package Equivalence Code | — | — | — | LCC32,.2SQ,20 | LCC32,.2SQ,20 | — | LCC32,.2SQ,20 | — |
| Supply Current-Max | — | — | — | 7.8 mA | 100 mA | — | 10.3 mA | — |
| Manufacturer Package Code | — | — | — | — | UFQFPN 32 5x5x0.55 | UFQFPN 32 5x5x0.55 | — | UFQFPN 32 5x5x0.55 |
| Time@Peak Reflow Temperature-Max (s) | — | — | — | — | 30 | — | NOT SPECIFIED | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Quick Links
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQCC32
Why Look for Alternatives?
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When evaluating STM32L431KBU6TR replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to STM32L431KBU6TR?
Known equivalents for STM32L431KBU6TR include STM32L431KCU6TR, STM32L431KBU3TR, STM32L412KBU6TR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of STM32L431KBU6TR?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify STM32L431KBU6TR alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.