| PartNumber | AT89C5131A-TISUL | AT89C5131A-TIRUL | AT89C5131A-TISIL |
| Description | 8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V | 8-bit Microcontrollers - MCU 32K Flash 3V USB | IC MCU 8BIT 32KB FLASH 28SOIC |
| Manufacturer | Microchip | Microchip | - |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-28 | SOIC-28 | - |
| Series | 89C | - | - |
| Core | 80C51 | 80C51 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 48 MHz | - | - |
| Program Memory Size | 32 kB | - | - |
| Data RAM Size | 1.25 kB | - | - |
| ADC Resolution | No ADC | No ADC | - |
| Number of I/Os | 34 I/O | - | - |
| Operating Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tube | Reel | - |
| Height | 2.35 mm | - | - |
| Length | 18.1 mm | - | - |
| Program Memory Type | Flash | - | - |
| Width | 7.6 mm | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | - |
| Interface Type | 2-Wire, EUART, SPI, USB | - | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Processor Series | AT89x | AT89x | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 27 | 1000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 3 V | - | - |
| Unit Weight | 0.078125 oz | - | - |
| Product | - | MCU | - |