The TN87C51FB microcontroller is a 44-pin quad package with a maximum operating temperature of 85 degrees Celsius and a minimum operating temperature of -40 degrees Celsius. It has 32 I/O lines and an external data bus width of 8 bits. The device operates at a maximum clock frequency of 12 MHz and has 8 MHz speed. It features OTPROM programmability and is suitable for industrial temperature applications.
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| Max Operating Temperature | 85 |
| Number of Terminals | 44 |
| Min Operating Temperature | -40 |
| Terminal Position | QUAD |
| JEDEC Package Code | S-PQCC-J44 |
| Width | 16.5862 |
| Length | 16.5862 |
| Temperature Grade | INDUSTRIAL |
| Supply Voltage-Nom | 5 |
| Supply Voltage-Min | 4 |
| Supply Voltage-Max | 6 |
| Clock Frequency-Max | 12 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Number of I/O Lines | 32 |
| External Data Bus Width | 8 |
| Address Bus Width | 16 |
| Bit Size | 8 |
| Speed | 12 |
| ROM Programmability | OTPROM |
| PWM Channels | NO |
| Has ADC | NO |
| DMA Channels | NO |
| DAC Channels | NO |
| REACH | unknown |
| Military Spec | False |
