| PartNumber | AT90S1200-12SI | AT90S1200-12PC |
| Description | 8-bit Microcontrollers - MCU 1k bit | 8-bit Microcontrollers - MCU 1K FLASH 5V |
| Manufacturer | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | N | N |
| Mounting Style | SMD/SMT | Through Hole |
| Package / Case | SOIC-20 | PDIP-20 |
| Series | Microcontroller | AT90S1200 |
| Core | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit |
| Maximum Clock Frequency | 12 MHz | 12 MHz |
| Program Memory Size | 1 kB | 1 kB |
| ADC Resolution | No ADC | No ADC |
| Number of I/Os | 15 I/O | 15 I/O |
| Operating Supply Voltage | 4 V to 6 V | - |
| Minimum Operating Temperature | - 40 C | 0 C |
| Maximum Operating Temperature | + 85 C | + 70 C |
| Height | 2.37 mm | 5.33 mm |
| Length | 13 mm | 26.92 mm |
| Program Memory Type | Flash | Flash |
| Width | 7.6 mm | 7.11 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Data ROM Size | 1 kB | 1 kB |
| Data ROM Type | Flash | Flash |
| Interface Type | SPI | SPI |
| Number of Timers/Counters | 1 Timer | 1 Timer |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 37 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 6 V | 6 V |
| Supply Voltage Min | 2.7 V | 2.7 V |
| Unit Weight | 0.028254 oz | 0.079719 oz |
| Data RAM Size | - | 64 B |