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| PartNumber | DS21448L+ | DS21448L+W | DS21448LDK |
| Description | Telecom Interface ICs 3.3V E1/T1/J1 Quad Interface | IC LINE QUAD 3.3V E1/T1/J1 LQFP | KIT DESIGN LIU DS21448L T1/J1/E1 |
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Telecom Interface ICs | Interface - Telecom | - |
| RoHS | Y | - | - |
| Product | T1/E1/J1 Line Interface Units - LIUs | - | - |
| Supply Voltage Max | 3.465 V | - | - |
| Supply Voltage Min | 3.135 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | LQFP-128 | - | - |
| Packaging | Tube | Bulk | - |
| Series | DS21448L | - | - |
| Brand | Maxim Integrated | - | - |
| Number of Channels | 4 Channel | - | - |
| Moisture Sensitive | Yes | - | - |
| Operating Supply Voltage | 3.3 V | - | - |
| Product Type | Telecom Interface ICs | - | - |
| Factory Pack Quantity | 72 | - | - |
| Subcategory | Interface ICs | - | - |
| Part # Aliases | 90-21448+L00 DS21448L | - | - |
| Unit Weight | 0.021693 oz | - | - |
| Package Case | - | 128-LQFP | - |
| Operating Temperature | - | 0°C ~ 70°C | - |
| Mounting Type | - | Surface Mount | - |
| Function | - | * | - |
| Interface | - | * | - |
| Voltage Supply | - | 3.135 V ~ 3.465 V | - |
| Supplier Device Package | - | 128-LQFP (14x20) | - |
| Number of Circuits | - | 4 | - |
| Power Watts | - | * | - |
| Current Supply | - | * | - |