| PartNumber | AT89C5131A-RDTUL | AT89C5131A-PUTUM | AT89C5131A-PLTUL |
| Description | 8-bit Microcontrollers - MCU 32K Flash 3V USB | 8-bit Microcontrollers - MCU C5130A 32K Flash USB | 8-bit Microcontrollers - MCU 32K Flash 3V USB |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VQFP-64 | QFN-32 | QFN-32 |
| Series | 89C | 89C | 89C |
| Core | 8051 | 80C51 | 80C51 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 48 MHz | 48 MHz | 48 MHz |
| Program Memory Size | 32 kB | 1.25 kB | 32 kB |
| Data RAM Size | 1 kB | 1.25 kB | 1.25 kB |
| ADC Resolution | No ADC | No ADC | No ADC |
| Number of I/Os | 34 I/O | 34 I/O | 34 I/O |
| Operating Supply Voltage | 3 V to 3.6 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tray | Tray | Tray |
| Height | 1.45 mm | 0.95 mm | 0.9 mm |
| Length | 10.1 mm | 7 mm | 7 mm |
| Program Memory Type | Flash | EEPROM | Flash |
| Width | 10.1 mm | 7 mm | 7 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data RAM Type | ERAM | - | - |
| Data ROM Size | 1 kB | - | - |
| Data ROM Type | EEPROM | - | - |
| Interface Type | 2-Wire, EUART, SPI, USB | 2-Wire, EUART, SPI, USB | 2-Wire, EUART, SPI, USB |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 3 Timer | 16 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 | 260 | 260 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 5.5 V | 3.6 V |
| Supply Voltage Min | 3 V | 2.7 V | 3 V |
| Unit Weight | - | 0.006653 oz | 0.006653 oz |