AT89C51RD2-RLTIMAlternatives & Equivalent Parts
About AT89C51RD2-RLTIM
AT89C51RD2-RLTIM is a Integrated Circuit component manufactured by Microchip. It comes in a Quad Flat 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 | AT89C51RD2-RLTIMSource | AT25128B-SSHL-B | AT89C51RC2-3CSUM | HMC416LP4E | HMC703LP4E | HMC734LP5TR | AT89C51ED2-RLTUM |
|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip | Microchip | Microchip | Analog Devices | Analog Devices | Analog Devices | Microchip |
| Package Type | Quad Flat Packages | Small Outline Packages | Dual-In-Line Packages | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat No-Lead | Quad Flat Packages |
| Pin Count | 44 | 8 | 40 | 24 | 24 | 32 | 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 | -40.0°C ~ 85.0°C | -40.0°C ~ 85.0°C |
| Price | $4.8750 | $0.5470 | $6.0100 | $11.2200 | $17.4403 | $47.9400 | $6.3501 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | — | ACTIVE | ACTIVE | ACTIVE | OBSOLETE | ACTIVE | OBSOLETE |
| Electrical Parameters | |||||||
| Pbfree Code | — | Yes | Yes | No | No | No | Yes |
| Manufacturer Package Code | — | SOIC-8 | PDIP-40 | HCP-24-2 | HCP-24-2 | HCP-32-1 | — |
| Factory Lead Time | — | 7 Weeks | 6 Weeks | — | — | — | — |
| YTEOL | — | 14 | 14 | 10 | 0 | 9 | 0 |
| Additional Feature | — | ALSO OPERATES AT 2.5V TO 5.5V @10MHZ AND 1.8V TO 5.5V @5MHZ | — | — | — | — | OPERATES AT 2.7V MINIMUM SUPPLY @ 40 MHZ |
| Clock Frequency-Max (fCLK) | — | 20 MHz | — | — | — | — | — |
| Data Retention Time-Min | — | 100 | — | — | — | — | — |
| Endurance | — | 1000000 Write/Erase Cycles | — | — | — | — | — |
| JESD-30 Code | — | R-PDSO-G8 | R-PDIP-T40 | — | S-PQCC-N24 | — | S-PQFP-G44 |
| JESD-609 Code | — | e4 | e3 | e3 | e3 | — | e3 |
| Memory Density | — | 131072 bit | — | — | — | — | — |
| Memory IC Type | — | EEPROM | — | — | — | — | — |
| Memory Width | — | 8 | — | — | — | — | — |
| Number of Functions | — | 1 | — | — | 1 | — | — |
| Number of Ports | — | 1 | — | — | — | — | — |
| Number of Words | — | 16384 words | — | — | — | — | — |
| Number of Words Code | — | 16000 | — | — | — | — | — |
| Operating Mode | — | SYNCHRONOUS | — | — | — | — | — |
| Organization | — | 16KX8 | — | — | — | — | — |
| Output Characteristics | — | 3-STATE | — | — | — | — | — |
| Package Body Material | — | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY |
| Package Equivalence Code | — | SOP8,.23 | DIP40,.6 | LCC24,.16SQ,20 | LCC24,.16SQ,20 | LCC32,.2SQ,20 | QFP44,.47SQ,32 |
| Package Shape | — | RECTANGULAR | RECTANGULAR | — | SQUARE | — | SQUARE |
| Package Style | — | SMALL OUTLINE | IN-LINE | — | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | — | FLATPACK, LOW PROFILE |
| Parallel/Serial | — | SERIAL | — | — | — | — | — |
| Peak Reflow Temperature (Cel) | — | 260 | — | — | 260 | — | — |
| Programming Voltage | — | 5 V | — | — | — | — | — |
| Qualification Status | — | Not Qualified | Not Qualified | — | Not Qualified | — | Not Qualified |
| Screening Level | — | TS 16949 | — | — | — | — | — |
| Serial Bus Type | — | SPI | — | — | — | — | — |
| Standby Current-Max | — | 0.000005 A | — | — | — | — | — |
| Supply Current-Max | — | 0.01 mA | 29 mA | — | — | 240 mA | 29 mA |
| Supply Voltage-Max (Vsup) | — | 5.5 V | — | — | 3.5 V | — | — |
| Supply Voltage-Min (Vsup) | — | 4.5 V | — | — | 2.7 V | — | — |
| Supply Voltage-Nom (Vsup) | — | 5 V | — | — | 3.3 V | — | — |
| Surface Mount | — | YES | NO | YES | YES | YES | YES |
| Technology | — | CMOS | CMOS | — | — | — | CMOS |
| Temperature Grade | — | INDUSTRIAL | INDUSTRIAL | — | INDUSTRIAL | — | INDUSTRIAL |
| Terminal Finish | — | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | Matte Tin (Sn) | Matte Tin (Sn) | — | MATTE TIN |
| Terminal Form | — | GULL WING | THROUGH-HOLE | — | NO LEAD | — | GULL WING |
| Terminal Pitch | — | 1.27 mm | 2.54 mm | — | 0.5 mm | — | 0.8 mm |
| Terminal Position | — | DUAL | DUAL | — | QUAD | — | QUAD |
| Time@Peak Reflow Temperature-Max (s) | — | 40 | — | — | 30 | — | — |
| Write Cycle Time-Max (tWC) | — | 5 ms | — | — | — | — | — |
| Write Protection | — | HARDWARE/SOFTWARE | — | — | — | — | — |
| ## AT25128B-SSHL-B Alternates Showing results | — | Image | — | — | — | — | — |
| Has ADC | — | — | NO | — | — | — | NO |
| Address Bus Width | — | — | 16 | — | — | — | 16 |
| Bit Size | — | — | 8 | — | — | — | 8 |
| Boundary Scan | — | — | NO | — | — | — | — |
| CPU Family | — | — | 8051 | — | — | — | 8051 |
| Clock Frequency-Max | — | — | 40 MHz | — | — | — | 40 MHz |
| DAC Channels | — | — | NO | — | — | — | NO |
| DMA Channels | — | — | NO | — | — | — | NO |
| External Data Bus Width | — | — | 8 | — | — | — | 8 |
| Format | — | — | FIXED POINT | — | — | — | — |
| Integrated Cache | — | — | NO | — | — | — | — |
| Low Power Mode | — | — | YES | — | — | — | — |
| Number of External Interrupts | — | — | 2 | — | — | — | — |
| Number of I/O Lines | — | — | 32 | — | — | — | 32 |
| Number of Serial I/Os | — | — | 1 | — | — | — | — |
| Number of Timers | — | — | 3 | — | — | — | — |
| On Chip Data RAM Width | — | — | 8 | — | — | — | — |
| On Chip Program ROM Width | — | — | 8 | — | — | — | 8 |
| PWM Channels | — | — | YES | — | — | — | YES |
| RAM (bytes) | — | — | 1280 | — | — | — | 2048 |
| ROM (words) | — | — | 32768 | — | — | — | 65536 |
| ROM Programmability | — | — | FLASH | — | — | — | FLASH |
| Speed | — | — | 40 MHz | — | — | — | 60 MHz |
| Supply Voltage-Max | — | — | 5.5 V | — | — | — | 5.5 V |
| Supply Voltage-Min | — | — | 5 V | — | — | — | 5 V |
| Supply Voltage-Nom | — | — | 5 V | 3 V | — | 5 V | 5 V |
| uPs/uCs/Peripheral ICs Type | — | — | MICROCONTROLLER | — | — | — | MICROCONTROLLER |
| Control Voltage-Max | — | — | — | 10 V | — | 13 V | — |
| Modulation Sensitivity | — | — | — | -1 MHz/V | — | 30 MHz/V | — |
| Mounting Feature | — | — | — | SURFACE MOUNT | — | SURFACE MOUNT | — |
| Offset Frequency | — | — | — | 100 kHz | — | 100 kHz | — |
| Operating Frequency-Max | — | — | — | 3000 MHz | — | 10200 MHz | — |
| Operating Frequency-Min | — | — | — | 2750 MHz | — | 8600 MHz | — |
| Oscillator Type | — | — | — | VOLTAGE CONTROLLED OSCILLATOR | — | VOLTAGE CONTROLLED OSCILLATOR | — |
| Output Power | — | — | — | 4.5 dBm | — | 22 dBm | — |
| Phase Noise | — | — | — | -114 dBc/Hz | — | -100 dBc/Hz | — |
| Physical Dimension | — | — | — | 4.1mm x 4.1mm x 1.0mm | — | 5.1mm x 5.1mm x 1.0mm | — |
| ## HMC416LP4E Alternates Showing results | — | — | — | Image | — | — | — |
| Analog IC - Other Type | — | — | — | — | PHASE LOCKED LOOP | — | — |
| Supply Current-Max (Isup) | — | — | — | — | 95 mA | — | — |
| ## HMC703LP4E Alternates Showing results | — | — | — | — | Image | — | — |
| Control Voltage-Min | — | — | — | — | — | 1 V | — |
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 6 alternatives for AT89C51RD2-RLTIM — response within 24 hours.
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Microcontroller, 8-Bit, FLASH, 8051 CPU, 60MHz, CMOS, PQFP44
Why Look for Alternatives?
Finding alternatives for AT89C51RD2-RLTIM 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 AT89C51RD2-RLTIM 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 AT89C51RD2-RLTIM?
Known equivalents for AT89C51RD2-RLTIM include AT25128B-SSHL-B, AT89C51RC2-3CSUM, HMC416LP4E. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of AT89C51RD2-RLTIM?
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 AT89C51RD2-RLTIM 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.