| Part Number | DP8421AV-20 | DP8422AV-20 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Memory - Controllers | Memory - Controllers | 
| 
                             | 
                                                        
                             | 
                                                    |
| Product Status | Obsolete | Obsolete | 
| Controller Type | Dynamic RAM (DRAM) | Dynamic RAM (DRAM) | 
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 68-LCC (J-Lead) | 84-LCC (J-Lead) | 
| Supplier Device Package | 68-PLCC (25.13x25.13) | 84-PLCC (29.31x29.31) |