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| PartNumber | DS87C520ECL | DS87C520ENL | DS87C520ENL+ |
| Description | |||
| Manufacturer | - | MAXIM | - |
| Product Category | - | Embedded - Microcontrollers | - |
| Series | - | 87C | - |
| Packaging | - | Tray | - |
| Mounting Style | - | SMD/SMT | - |
| Package Case | - | TQFP-44 | - |
| Operating Temperature | - | -40°C ~ 85°C (TA) | - |
| Supplier Device Package | - | 44-TQFP (10x10) | - |
| Number of I O | - | 32 | - |
| Speed | - | 33MHz | - |
| EEPROM Size | - | - | - |
| Core Processor | - | 8051 | - |
| RAM Size | - | 1K x 8 | - |
| Program Memory Type | - | OTP | - |
| Peripherals | - | Power-Fail Reset, WDT | - |
| Connectivity | - | EBI/EMI, SIO, UART/USART | - |
| Voltage Supply Vcc Vdd | - | 4.5 V ~ 5.5 V | - |
| Core Size | - | 8-Bit | - |
| Program Memory Size | - | 16KB (16K x 8) | - |
| Data Converters | - | - | - |
| Oscillator Type | - | External | - |
| Maximum Operating Temperature | - | + 85 C | - |
| Minimum Operating Temperature | - | - 40 C | - |
| Operating Supply Voltage | - | 4.5 V to 5.5 V | - |
| Interface Type | - | UART | - |
| Core | - | 8051 | - |
| Processor Series | - | DS87C520 | - |
| Part # Aliases | - | 90-87520+ENL DS87C520 | - |
| Data Bus Width | - | 8 bit | - |
| Supply Voltage Max | - | 5.5 V | - |
| Supply Voltage Min | - | 4.5 V | - |
| Maximum Clock Frequency | - | 33 MHz | - |
| Number of I Os | - | 32 I/O | - |
| Data RAM Size | - | 1 kB | - |
| Number of Timers Counters | - | 3 Timer | - |
| ADC Resolution | - | No ADC | - |
| Data RAM Type | - | SRAM | - |