AT89C51ED2-SMRUMAlternatives & Equivalent Parts
About AT89C51ED2-SMRUM
AT89C51ED2-SMRUM is a Integrated Circuit component manufactured by Microchip. It comes in a Plastic Leaded Chip Carrier 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 | AT89C51ED2-SMRUMSource | AT89C51AC3-SLSUM | AT89C51RC-24AU | AT89C51-24JI | AT89C51ED2-SMSUM |
|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip | Microchip |
| Package Type | Plastic Leaded Chip Carrier | Plastic Leaded Chip Carrier | Quad Flat Packages | Plastic Leaded Chip Carrier | Plastic Leaded Chip Carrier |
| Pin Count | 68 | 44 | 44 | 44 | 68 |
| Temperature Range | — | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | — | -40.0°C ~ 85.0°C |
| Price | $7.6500 | $7.4700 | $2.2800 | $3.0900 | $7.9600 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | — | ACTIVE | ACTIVE | — | ACTIVE |
| Electrical Parameters | |||||
| Pbfree Code | — | Yes | Yes | — | Yes |
| Manufacturer Package Code | — | PLCC-44 | TQFP-44 | — | PLCC-68 |
| Factory Lead Time | — | 7 Weeks | 10 Weeks | — | 6 Weeks |
| YTEOL | — | 14 | 13 | — | 14 |
| Has ADC | — | YES | NO | — | NO |
| Additional Feature | — | ALSO OPERATES AT 2.7V SUPPLY AT 40 MHZ | — | — | OPERATES AT 2.7V MINIMUM SUPPLY @ 40 MHZ |
| Address Bus Width | — | 16 | 16 | — | 16 |
| Bit Size | — | 8 | 8 | — | 8 |
| Boundary Scan | — | NO | NO | — | NO |
| CPU Family | — | 8051 | 8051 | — | 80C51 |
| Clock Frequency-Max | — | 40 MHz | 24 MHz | — | 40 MHz |
| DAC Channels | — | NO | NO | — | NO |
| DMA Channels | — | NO | NO | — | NO |
| External Data Bus Width | — | 8 | 8 | — | 8 |
| Format | — | FIXED POINT | FIXED POINT | — | FIXED POINT |
| Integrated Cache | — | NO | NO | — | NO |
| JESD-30 Code | — | S-PQCC-J44 | S-PQFP-G44 | — | S-PQCC-J68 |
| JESD-609 Code | — | e3 | e3 | — | e3 |
| Low Power Mode | — | YES | NO | — | YES |
| Number of External Interrupts | — | 2 | 2 | — | 2 |
| Number of I/O Lines | — | 34 | 32 | — | 50 |
| Number of Serial I/Os | — | 1 | 1 | — | 1 |
| Number of Timers | — | 3 | 3 | — | 3 |
| On Chip Data RAM Width | — | 8 | 8 | — | 8 |
| On Chip Program ROM Width | — | 8 | 8 | — | 8 |
| PWM Channels | — | YES | NO | — | YES |
| Package Body Material | — | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | — | LDCC44,.7SQ | TQFP44,.39SQ,31 | — | LDCC68,1.0SQ |
| Package Shape | — | SQUARE | SQUARE | — | SQUARE |
| Package Style | — | CHIP CARRIER | FLATPACK, THIN PROFILE | — | CHIP CARRIER |
| Peak Reflow Temperature (Cel) | — | 245 | 260 | — | — |
| Qualification Status | — | Not Qualified | Not Qualified | — | Not Qualified |
| RAM (bytes) | — | 2304 | 512 | — | 2048 |
| ROM (words) | — | 65536 | 32768 | — | 65536 |
| ROM Programmability | — | FLASH | FLASH | — | FLASH |
| Speed | — | 60 MHz | 24 MHz | — | 60 MHz |
| Supply Voltage-Max | — | 5.5 V | 5.5 V | — | 5.5 V |
| Supply Voltage-Min | — | 5 V | 5 V | — | 5 V |
| Supply Voltage-Nom | — | 5 V | 5 V | — | 5 V |
| Surface Mount | — | YES | YES | — | YES |
| Technology | — | CMOS | CMOS | — | CMOS |
| Temperature Grade | — | INDUSTRIAL | INDUSTRIAL | — | INDUSTRIAL |
| Terminal Finish | — | Matte Tin (Sn) | Matte Tin (Sn) | — | Matte Tin (Sn) |
| Terminal Form | — | J BEND | GULL WING | — | J BEND |
| Terminal Pitch | — | 1.27 mm | 0.8 mm | — | 1.27 mm |
| Terminal Position | — | QUAD | QUAD | — | QUAD |
| Time@Peak Reflow Temperature-Max (s) | — | 40 | 40 | — | — |
| uPs/uCs/Peripheral ICs Type | — | MICROCONTROLLER | MICROCONTROLLER | — | MICROCONTROLLER |
| ## AT89C51AC3-SLSUM Alternates Showing results | — | Image | — | — | — |
| Supply Current-Max | — | — | 25 mA | — | — |
| ## AT89C51RC-24AU Alternates Showing results | — | — | Image | — | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 4 alternatives for AT89C51ED2-SMRUM — response within 24 hours.
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Microcontroller, 8-Bit, FLASH, 80C51 CPU, 60MHz, CMOS, PQCC68
Why Look for Alternatives?
Finding alternatives for AT89C51ED2-SMRUM 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 AT89C51ED2-SMRUM 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 AT89C51ED2-SMRUM?
Known equivalents for AT89C51ED2-SMRUM include AT89C51AC3-SLSUM, AT89C51RC-24AU, AT89C51-24JI. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT89C51ED2-SMRUM?
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 AT89C51ED2-SMRUM 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.