The AT90S12004YI is a 4MHz SPI microcontroller from Microchip, featuring a 1KB FLASH memory and 15 I/Os. It operates within a temperature range of -40°C to 85°C and is available in an SSOP package for surface mount applications. The device includes an internal oscillator and peripherals such as a power-on reset and watchdog timer. It is part of the AVR 90S series and is packaged in a rail or tube format.
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| Package/Case | SSOP |
| Core Architecture | AVR |
| Frequency | 4MHz |
| Interface | SPI |
| Max Operating Temperature | 85°C |
| Memory Size | 1KB |
| Memory Type | FLASH, |
| Min Operating Temperature | -40°C |
| Max Supply Voltage | 6V |
| Min Supply Voltage | 2.7V |
| Mount | Surface Mount |
| Number of I/Os | 15 |
| Number of Timers/Counters | 1 |
| Oscillator Type | Internal |
| Packaging | Rail/Tube |
| Peripherals | POR, WDT |
| Series | AVR® 90S |
| RoHS | Not Compliant |
