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| Part Number | AT94K40AL-25BQI | AT94K40AL-25BQU | AT94K40AL-25DQI | AT94S40AL-25BQI | AT94K10AL-25BQI | AT94K40AL-25BQC |
|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active | Obsolete | Obsolete | Obsolete | Obsolete |
| Core Type | 8-Bit AVR | 8-Bit AVR | 8-Bit AVR | 8-Bit AVR | 8-Bit AVR | 8-Bit AVR |
| Speed | 18 MHz | 18 MHz | 18 MHz | 16 MHz | 25 MHz | 18 MHz |
| Interface | I²C, UART | I²C, UART | I²C, UART | I²C, UART | I²C, UART | I²C, UART |
| Program SRAM Bytes | 20K-32K | 20K-32K | 20K-32K | 20K-32K | 20K-32K | 20K-32K |
| FPGA SRAM | 18kb | 18kb | 18kb | 18kb | 4KB | 18kb |
| EEPROM Size | - | - | - | 1M x 8 | - | - |
| Data SRAM Bytes | 4K ~ 16K | 4K ~ 16K | 4K ~ 16K | 4K ~ 16K | 4K ~ 16K | 4K ~ 16K |
| FPGA Core Cells | 2304 | 2304 | 2304 | 2304 | 576 | 2304 |
| FPGA Gates | 40k | 40k | 40k | 40k | 10k | 40k |
| FPGA Registers | 2862 | 2862 | 2862 | 2862 | 846 | 2862 |
| Voltage - Supply | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C |
| Package / Case | 144-LQFP | 144-LQFP | 208-BFQFP | 144-LQFP | 144-LQFP | 144-LQFP |
| Supplier Device Package | 144-LQFP (20x20) | 144-LQFP (20x20) | 208-PQFP (28x28) | 144-LQFP (20x20) | 144-LQFP (20x20) | 144-LQFP (20x20) |
