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| PartNumber | AT87C51RC2-3CSUM | AT87C51RC2-3CSUL | AT87C51RC2-RLTUL |
| Description | 8-bit Microcontrollers - MCU 32KB SCMOS 3/2 .5 OTP | 8-bit Microcontrollers - MCU OTP RC/32K 40MHZ 3V | IC MCU 8BIT 32KB OTP 44VQFP |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | PDIL-40 | PDIL-40 | - |
| Series | 87C | 87C | - |
| Core | 80C51 | 80C51 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 60 MHz | 60 MHz | - |
| Program Memory Size | 32 kB | 32 kB | - |
| Data RAM Size | 512 B | 512 B | - |
| ADC Resolution | No ADC | No ADC | - |
| Number of I/Os | 32 I/O | 32 I/O | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Height | 4.95 mm | 4.95 mm | - |
| Length | 53.21 mm | 53.21 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | OTP | OTP | - |
| Width | 14.73 mm | 14.73 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Interface Type | UART | UART | - |
| Number of Timers/Counters | 3 Timer | 3 Timer | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 216 | 216 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 2.7 V | - |