| PartNumber | DS80C390-QNR+ | DS80C400-FNY+ | DS80C400-FNY |
| Description | 8-bit Microcontrollers - MCU Dual CAN High-Speed | 8-bit Microcontrollers - MCU Network MCU | 8-bit Microcontrollers - MCU Network MCU |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | PLCC-68 | LQFP-100 | LQFP-100 |
| Series | DS80C390 | DS80C400 | DS80C400 |
| Core | 8051 | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 40 MHz | 75 MHz | 75 MHz |
| Program Memory Size | 4 kB | 64 kB | 64 kB |
| Data RAM Size | 4 kB | 1 kB | 1 kB |
| ADC Resolution | No ADC | No ADC | No ADC |
| Number of I/Os | 32 I/O | 64 I/O | 64 I/O |
| Operating Supply Voltage | 3.85 V to 5.5 V | 1.8 V, 3.3 V | 1.8 V, 3.3 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Tube | Tray | Tube |
| Height | 3.96 mm | 1.45 mm | 1.45 mm |
| Length | 24.33 mm | 14 mm | 14 mm |
| Program Memory Type | SRAM | ROM | ROM |
| Width | 24.33 mm | 14 mm | 14 mm |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Data RAM Type | SRAM | SRAM | SRAM |
| Interface Type | CAN, IrDA | CAN | CAN |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of Timers/Counters | 3 Timer | 4 Timer | 4 Timer |
| Processor Series | DS80C390 | DS80C400 | DS80C400 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 19 | 1 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 5.5 V | 1.98 V, 3.6 V | 1.98 V, 3.6 V |
| Supply Voltage Min | 3.85 V | 1.62 V, 3 V | 1.62 V, 3 V |
| Part # Aliases | 90-80390+QNR DS80C390 | 90-80400+FNY DS80C400 | DS80C400 |
| Unit Weight | 0.171777 oz | 0.046530 oz | 0.046530 oz |