| PartNumber | AT89LP828-20AU | AT89LP828-20JU | AT89LP828-20MH |
| Description | 8-bit Microcontrollers - MCU Single Cycle 8051 8K ISP Flash 2.4V-5.5V | 8-bit Microcontrollers - MCU Single Cycle 8051 8K ISP Flash 2.4V-5.5V | 8-bit Microcontrollers - MCU Single Cycle 8051 8K ISP Flash 2.4V-5.5V |
| 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 | - |
| Package / Case | TQFP-32 | PLCC-32 | VQFN-32 |
| Series | 89LP | 89LP | - |
| Core | 8051 | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 20 MHz | 20 MHz | - |
| Program Memory Size | 8 kB | 8 kB | - |
| Data RAM Size | 768 B | 768 B | - |
| ADC Resolution | No ADC | No ADC | No ADC |
| Number of I/Os | 30 I/O | 30 I/O | - |
| Operating Supply Voltage | 2.4 V to 5.5 V | 2.4 V to 5.5 V | 2.4 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tube | Tray |
| Height | 1 mm | 2.79 mm | - |
| Length | 7 mm | 14.05 mm | - |
| Program Memory Type | Flash | Flash | - |
| Width | 7 mm | 11.51 mm | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Interface Type | 2-Wire, SPI | 2-Wire, SPI | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 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 | 250 | 32 | 490 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.4 V | 2.4 V | - |
| Unit Weight | 0.002568 oz | - | - |