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| PartNumber | DP8421AV-20 | DP8421AV-20 (NS32821AV-2 | DP8421AV-25 |
| Description | IC CTRLR/DVR CMOS PROGRAM 68PLCC | IC CTRLR/DVR CMOS PROGRAM 68PLCC | |
| Manufacturer | Texas Instruments | - | - |
| Product Category | Memory - Controllers | - | - |
| Series | - | - | - |
| Packaging | Tube | - | - |
| Package Case | 68-LCC (J-Lead) | - | - |
| Operating Temperature | 0°C ~ 70°C | - | - |
| Voltage Supply | 4.5 V ~ 5.5 V | - | - |
| Supplier Device Package | 68-PLCC | - | - |
| Controller Type | Dynamic RAM (DRAM) | - | - |