AT89C4051-12SUAlternatives & Equivalent Parts
About AT89C4051-12SU
AT89C4051-12SU is a Integrated Circuit component manufactured by Microchip. It comes in a Small Outline Packages 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 | AT89C4051-12SUSource | AT89C4051-24SU |
|---|---|---|
| Manufacturer | Microchip | Microchip |
| Package Type | Small Outline Packages | Small Outline Packages |
| Pin Count | 20 | 20 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $1.0900 | $1.1300 |
| Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE |
| Electrical Parameters | ||
| Pbfree Code | Yes | Yes |
| Manufacturer Package Code | SOIC-20 | SOIC-20 |
| Factory Lead Time | 7 Weeks | 7 Weeks |
| YTEOL | 14 | 14 |
| Has ADC | NO | NO |
| Bit Size | 8 | 8 |
| Boundary Scan | NO | NO |
| CPU Family | 80C51 | 80C51 |
| Clock Frequency-Max | 12 MHz | 24 MHz |
| DAC Channels | NO | NO |
| DMA Channels | NO | NO |
| Format | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO |
| JESD-30 Code | R-PDSO-G20 | R-PDSO-G20 |
| JESD-609 Code | e3 | e3 |
| Low Power Mode | YES | YES |
| Number of External Interrupts | 2 | 2 |
| Number of I/O Lines | 15 | 15 |
| Number of Serial I/Os | 1 | 1 |
| Number of Timers | 2 | 2 |
| On Chip Data RAM Width | 8 | 8 |
| On Chip Program ROM Width | 8 | 8 |
| PWM Channels | NO | NO |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 | SOP20,.4 |
| Package Shape | RECTANGULAR | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 250 | 250 |
| Qualification Status | Not Qualified | Not Qualified |
| RAM (bytes) | 128 | 128 |
| ROM (words) | 4096 | 4096 |
| ROM Programmability | FLASH | FLASH |
| Speed | 12 MHz | 24 MHz |
| Supply Current-Max | 15 mA | 15 mA |
| Supply Voltage-Max | 6 V | 6 V |
| Supply Voltage-Min | 3 V | 5 V |
| Supply Voltage-Nom | 3 V | 5 V |
| Surface Mount | YES | YES |
| Technology | CMOS | CMOS |
| Temperature Grade | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm |
| Terminal Position | DUAL | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER | MICROCONTROLLER |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering this alternative for AT89C4051-12SU — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for AT89C4051-12SU is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating AT89C4051-12SU 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 AT89C4051-12SU?
Known equivalents for AT89C4051-12SU include AT89C4051-24SU. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT89C4051-12SU?
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 AT89C4051-12SU 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.