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| PartNumber | SAF-XC164KM-4F40F AA | SAF-XC164KM-4F20F AA | SAF-XC164KM-8F20FAA |
| Description | 16-bit Microcontrollers - MCU 16-Bit Single-Chip 5V 40MHz Flash | 16-bit Microcontrollers - MCU 16-Bit Single-Chip 5V 20MHz Flash | |
| Manufacturer | Infineon | Infineon | - |
| Product Category | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TQFP-64 | TQFP-64 | - |
| Core | C166SV2 | C166SV2 | - |
| Data Bus Width | 16 bit | 16 bit | - |
| Maximum Clock Frequency | 40 MHz | 20 MHz | - |
| Program Memory Size | 32 kB | 32 kB | - |
| Data RAM Size | 4 kB | 4 kB | - |
| ADC Resolution | No ADC | No ADC | - |
| Number of I/Os | 47 I/O | 47 I/O | - |
| Operating Supply Voltage | 2.5 V, 5 V | 2.5 V, 5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Series | XC166 | XC166 | - |
| Packaging | Tray | Tray | - |
| Height | 1.4 mm | 1.4 mm | - |
| Length | 10 mm | 10 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Width | 10 mm | 10 mm | - |
| Brand | Infineon Technologies | Infineon Technologies | - |
| Interface Type | ASC, CAN, SSC | ASC, CAN, SSC | - |
| Number of Timers/Counters | 7 Timer | 7 Timer | - |
| Product Type | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 1900 | 1900 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Part # Aliases | FX164KM4F40FAAXT | FX164KM4F20FAAXT | - |
| Unit Weight | 0.012720 oz | 0.012720 oz | - |