| PartNumber | AT89S53-24JC | AT89S53-24JI | AT89S53-24JU |
| Description | 8-bit Microcontrollers - MCU w/12k | IC MCU 8BIT 12KB FLASH 44PLCC | IC MCU 8BIT 12KB FLASH 44PLCC |
| Manufacturer | Microchip | - | - |
| Product Category | 8-bit Microcontrollers - MCU | - | - |
| RoHS | N | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PLCC-44 | - | - |
| Series | Microcontroller | - | - |
| Core | 8051 | - | - |
| Data Bus Width | 8 bit | - | - |
| Maximum Clock Frequency | 24 MHz | - | - |
| Program Memory Size | 12 kB | - | - |
| Data RAM Size | 256 B | - | - |
| ADC Resolution | No ADC | - | - |
| Number of I/Os | 32 I/O | - | - |
| Operating Supply Voltage | 4 V to 6 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Height | 3.48 mm | - | - |
| Length | 16.7 mm | - | - |
| Product | MCU | - | - |
| Program Memory Type | Flash | - | - |
| Width | 16.7 mm | - | - |
| Brand | Microchip Technology / Atmel | - | - |
| Data ROM Type | Flash | - | - |
| Interface Type | SPI, UART | - | - |
| Number of Timers/Counters | 3 Timer | - | - |
| Product Type | 8-bit Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 27 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 6 V | - | - |
| Supply Voltage Min | 4 V | - | - |
| Unit Weight | 0.084185 oz | - | - |