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| PartNumber | AT89C51RD2-RLTUM | AT89C51RD2-SLRUM | AT89C51RD2-RLRUM |
| Description | 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V Ind | 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V | 8-bit Microcontrollers - MCU C51RD2 32K FLASH 5V Com |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VQFP-44 | PLCC-44 | LQFP-44 |
| Series | 89C | - | - |
| Core | 8051 | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 60 MHz | 60 MHz | 60 MHz |
| Program Memory Size | 64 kB | 64 kB | 64 kB |
| Data RAM Size | 2 kB | 1.75 kB | 2 kB |
| ADC Resolution | No ADC | No ADC | No ADC |
| Number of I/Os | 32 I/O | 34 I/O | 32 I/O |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Reel | Reel |
| Height | 1.45 mm | - | - |
| Length | 10.1 mm | - | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Width | 10.1 mm | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Interface Type | SPI, UART | SPI, UART | SPI, UART |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of Timers/Counters | 3 Timer | 3 Timer | 3 Timer |
| Processor Series | AT89x | AT89x | AT89x |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 160 | 500 | 1500 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Unit Weight | 0.031993 oz | 0.084185 oz | 0.012561 oz |
| Data RAM Type | - | XRAM | - |
| Data ROM Size | - | 2 kB | - |
| Data ROM Type | - | EEPROM | - |
| Manufacturer | Part # | Description | RFQ |
|---|---|---|---|
Microchip Technology / Atmel |
AT89C51RD2-SLSUM | 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V | |
| AT89C51RD2-RLTUM | 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V Ind | ||
| AT89C51RD2-SLRUM | 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V | ||
| AT89C51RD2-RLRUM | 8-bit Microcontrollers - MCU C51RD2 32K FLASH 5V Com | ||
| AT89C51SND2C-7FTUL | 8-bit Microcontrollers - MCU MP3 Decoder Flash +DAC100 - Ind | ||
| AT89C51SND1C-ROTUL | 8-bit Microcontrollers - MCU MP3 FLASH - VER. 3.3 V COM | ||
| AT89C51RE2-SLSUM | 8-bit Microcontrollers - MCU C51RE2 128k FLASH 2.7V | ||
| AT89C51RD2-RLTUMA0 | 4-Bit/8-Bit MCU - Tape and Reel (Alt: AT89C51RD2-RLTUMA0) | ||
| AT89C51RD2-RLTUM SL840 | MCU 8-Bit AT89C51 80C51 CISC 64KB Flash 3.3V/5V 44-Pin VQFP Tray (Alt: AT89C51RD2-RLTUM SL840) | ||
| AT89C51SND1C-IL-LFBGA ( | New and Original | ||
| AT89C51RD2-RLRUM | Microcontrollers - MCU 8-bit Microcontrollers - MCU C51RD2 32K FLASH 5V Com | ||
| AT89C51RD2-SLRUM | Microcontrollers - MCU 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V | ||
| AT89C51RD2-RLTUM | Microcontrollers - MCU 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V Ind | ||
| AT89C51RD2-SLSUM | Microcontrollers - MCU 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V | ||
| AT89C51RD2-RLTUMSL840 | New and Original | ||
| AT89C51RD2-SLSIM | IC MCU 8BIT 64KB FLASH 44PLCC | ||
| AT89C51RD2-SLSUM SL840 | New and Original | ||
| AT89C51RD2-SLSUM(PROG) | New and Original | ||
| AT89C51RD2-UM | New and Original | ||
| AT89C51RD2-UM/IM | New and Original | ||
| AT89C51RD2DXQ-RLTUM | New and Original | ||
| AT89C51RD2IM | New and Original | ||
| AT89C51RD2SLSIM | New and Original | ||
| AT89C51RE2-RLTUM | IC MCU 8BIT 128KB FLASH 44VQFP | ||
| AT89C51RE2-SLRUM | IC MCU 8BIT 128KB FLASH 44PLCC | ||
| AT89C51RE2-SLSUM | IC MCU 8BIT 128KB FLASH 44PLCC | ||
| AT89C51RED2-RLTUM | New and Original | ||
| AT89C51SDN2C-1LA | New and Original | ||
| AT89C51SN1C | New and Original | ||
| AT89C51SND | New and Original | ||
| AT89C51SND1-IL | New and Original | ||
| AT89C51SND1C | New and Original | ||
| AT89C51SND1C-1L | New and Original | ||
| AT89C51SND1C-EL | New and Original | ||
| AT89C51SND1C-IL | New and Original | ||
| AT89C51SND1C-IL-LFBGA | New and Original | ||
| AT89C51SND1C-IL-LFBGA (A | New and Original | ||
| AT89C51SND1C-IL/UL | New and Original | ||
| AT89C51SND1C-ROTIL | New and Original | ||
| AT89C51SND1C-ROTUL | IC MCU 8BIT 64KB FLASH 80TQFP | ||
| AT89C51SND1C-UL | New and Original | ||
| AT89C51SND2C-ILA | New and Original | ||
| AT89C51RD2-RLTIM | IC MCU 8BIT 64KB FLASH 44VQFP | ||
| AT89C51RD2-RLRIM | IC MCU 8BIT 64KB FLASH 44VQFP | ||
| AT89C51RD2-SLRIM | IC MCU 8BIT 64KB FLASH 44PLCC | ||
| AT89C51SND1C-7HTUL | IC MCU 8BIT 64KB FLASH 81BGA 89C | ||
| AT89C51SND2C-7FTUL | IC MCU 8BIT 64KB FLASH 100CTBGA 89C |