AT89C51RE2-SLSUMAlternatives & Equivalent Parts
About AT89C51RE2-SLSUM
AT89C51RE2-SLSUM 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 | AT89C51RE2-SLSUMSource | AT89C51ED2-SLRUM | AT89C51AC3-SLSUM | AT89C51CC03UA-SLSUM |
|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Microchip |
| Package Type | Plastic Leaded Chip Carrier | Plastic Leaded Chip Carrier | Plastic Leaded Chip Carrier | Plastic Leaded Chip Carrier |
| Pin Count | 44 | 44 | 44 | 44 |
| Temperature Range | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $67.9105 | $7.6300 | $7.4700 | $8.4200 |
| Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE |
| Electrical Parameters | ||||
| YTEOL | 7.2 | 14 | 14 | 14 |
| Has ADC | NO | NO | YES | YES |
| Additional Feature | 2.7V TO 5.5V @ 40MHZ | OPERATES AT 2.7V MINIMUM SUPPLY @ 40 MHZ | ALSO OPERATES AT 2.7V SUPPLY AT 40 MHZ | OPERATES AT 3V MINIMUM SUPPLY @ 40 MHZ |
| Address Bus Width | 16 | 16 | 16 | 16 |
| Bit Size | 8 | 8 | 8 | 8 |
| Boundary Scan | NO | NO | NO | NO |
| Clock Frequency-Max | 24 MHz | 40 MHz | 40 MHz | 40 MHz |
| DAC Channels | NO | NO | NO | NO |
| DMA Channels | NO | NO | NO | NO |
| External Data Bus Width | 16 | 8 | 8 | 8 |
| Format | FIXED POINT | FIXED POINT | FIXED POINT | FIXED POINT |
| Integrated Cache | NO | NO | NO | NO |
| JESD-30 Code | S-PQCC-J44 | S-PQCC-J44 | S-PQCC-J44 | S-PQCC-J44 |
| Low Power Mode | YES | YES | YES | YES |
| Number of External Interrupts | 2 | 2 | 2 | 2 |
| Number of I/O Lines | 34 | 34 | 34 | 34 |
| Number of Serial I/Os | 1 | 1 | 1 | 1 |
| Number of Timers | 2 | 3 | 3 | 3 |
| On Chip Data RAM Width | 8 | 8 | 8 | 8 |
| On Chip Program ROM Width | 8 | 8 | 8 | 8 |
| PWM Channels | NO | YES | YES | YES |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | LDCC44,.7SQ | LDCC44,.7SQ | LDCC44,.7SQ | LDCC44,.7SQ |
| Package Shape | SQUARE | SQUARE | SQUARE | SQUARE |
| Package Style | CHIP CARRIER | CHIP CARRIER | CHIP CARRIER | CHIP CARRIER |
| RAM (bytes) | 8448 | 2048 | 2304 | 2304 |
| ROM (words) | 131072 | 65536 | 65536 | 65536 |
| ROM Programmability | FLASH | FLASH | FLASH | FLASH |
| Speed | 60 MHz | 60 MHz | 60 MHz | 60 MHz |
| Supply Voltage-Max | 5.5 V | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage-Min | 5 V | 5 V | 5 V | 5 V |
| Supply Voltage-Nom | 5 V | 5 V | 5 V | 5 V |
| Surface Mount | YES | YES | YES | YES |
| Technology | CMOS | CMOS | CMOS | CMOS |
| Terminal Form | J BEND | J BEND | J BEND | J BEND |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | 1.27 mm |
| Terminal Position | QUAD | QUAD | QUAD | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER | MICROCONTROLLER |
| Pbfree Code | — | Yes | Yes | Yes |
| Manufacturer Package Code | — | PLCC-44 | PLCC-44 | PLCC-44 |
| Factory Lead Time | — | 7 Weeks | 7 Weeks | 7 Weeks |
| CPU Family | — | C51 | 8051 | 80C51 |
| JESD-609 Code | — | e3 | e3 | e3 |
| Temperature Grade | — | INDUSTRIAL | INDUSTRIAL | INDUSTRIAL |
| Terminal Finish | — | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) |
| Peak Reflow Temperature (Cel) | — | — | 245 | 245 |
| Qualification Status | — | — | Not Qualified | Not Qualified |
| Time@Peak Reflow Temperature-Max (s) | — | — | 40 | — |
| ## AT89C51AC3-SLSUM 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 3 alternatives for AT89C51RE2-SLSUM — response within 24 hours.
Quick Links
Microcontroller, 8-Bit, FLASH, C51 CPU, 60MHz, CMOS, PQCC44
Microcontroller, 8-Bit, FLASH, 80C51 CPU, 60MHz, CMOS, PQCC44
Why Look for Alternatives?
Finding alternatives for AT89C51RE2-SLSUM 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 AT89C51RE2-SLSUM 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 AT89C51RE2-SLSUM?
Known equivalents for AT89C51RE2-SLSUM include AT89C51ED2-SLRUM, AT89C51AC3-SLSUM, AT89C51CC03UA-SLSUM. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT89C51RE2-SLSUM?
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 AT89C51RE2-SLSUM 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.