The MC6821CL is a 40-pin dual-port parallel I/O IC from Motorola, designed for industrial temperature operation. It features a 5V supply voltage and a maximum clock frequency of 1 MHz. The IC has 16 I/O lines and an 8-bit external data bus width. It is available in a DIP40 package, measuring 15.24mm in width and 50.8mm in length.
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Motorola MC6821CL technical specifications.
| Max Operating Temperature | 85 |
| Number of Terminals | 40 |
| Min Operating Temperature | -40 |
| Terminal Position | DUAL |
| JEDEC Package Code | R-CDIP-T40 |
| Width | 15.24 |
| Length | 50.8 |
| Temperature Grade | INDUSTRIAL |
| Supply Voltage-Nom | 5 |
| Supply Voltage-Min | 4.75 |
| Supply Voltage-Max | 5.25 |
| Clock Frequency-Max | 1 |
| Number of Ports | 2 |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
| Number of I/O Lines | 16 |
| External Data Bus Width | 8 |
| RoHS | No |
| Eccn Code | EAR99 |
| HTS Code | 8542.39.00.01 |
| REACH | unknown |
| Military Spec | False |
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