Industrial-grade 8-bit microcontroller featuring an 8051 CPU core operating at a maximum clock frequency of 40MHz. This CMOS device offers 1280 bytes of RAM and 32 I/O lines, with 16-bit external data and address bus capabilities. Packaged in a 40-pin PDIP (R-PDIP-T40) with a 0.600-inch width, it operates within an industrial temperature range of -40°C to 85°C. The microcontroller supports PWM channels and operates from a nominal 5V supply voltage (4.5V to 5.5V).
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Atmel AT80C51RD2-3CSUM technical specifications.
| Max Operating Temperature | 85 |
| Number of Terminals | 40 |
| Min Operating Temperature | -40 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-PDIP-T40 |
| Width | 15.24 |
| Length | 51.75 |
| Pin Count | 40 |
| Temperature Grade | INDUSTRIAL |
| Supply Current-Max | 15.6 |
| Supply Voltage-Nom | 5 |
| Supply Voltage-Min | 4.5 |
| Supply Voltage-Max | 5.5 |
| Clock Frequency-Max | 40 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Number of I/O Lines | 32 |
| External Data Bus Width | 16 |
| Address Bus Width | 16 |
| Bit Size | 8 |
| Speed | 40 |
| ROM (words) | 0 |
| RAM (bytes) | 1280 |
| PWM Channels | YES |
| Has ADC | NO |
| DMA Channels | NO |
| DAC Channels | NO |
| RoHS | Yes |
| Eccn Code | 3A991.A.2 |
| Lead Free | Yes |
| HTS Code | 8542.31.00.01 |
| REACH | Compliant |
| Military Spec | False |
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