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| PartNumber | DS21Q59L+ | DS21Q59LN+ | DS21Q59DK |
| Description | Telecom Interface ICs Quad E1 Transceiver | Telecom Interface ICs Quad E1 Transceiver | Networking Development Tools DS21Q59 Dev Kit |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Telecom Interface ICs | Telecom Interface ICs | Networking Development Tools |
| RoHS | Y | Y | N |
| Product | E1 Line Interface Units - LIUs | E1 Line Interface Units - LIUs | - |
| Supply Voltage Max | 3.465 V | 3.465 V | - |
| Supply Voltage Min | 3.135 V | 3.135 V | - |
| Minimum Operating Temperature | 0 C | - 40 C | - |
| Maximum Operating Temperature | + 70 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-100 | LQFP-100 | - |
| Packaging | Tube | Tube | Bulk |
| Data Rate | 64 kb/s | - | - |
| Series | DS21Q59L | DS21Q59LN | DS21Q59DK |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Number of Channels | 4 Channel | 4 Channel | - |
| Moisture Sensitive | Yes | Yes | - |
| Operating Supply Voltage | 3.3 V | 3.3 V | - |
| Product Type | Telecom Interface ICs | Telecom Interface ICs | Networking Development Tools |
| Factory Pack Quantity | 90 | 10 | 1 |
| Subcategory | Interface ICs | Interface ICs | Development Tools |
| Part # Aliases | 90-21Q59+L00 DS21Q59L | 90-21Q59+LN0 DS21Q59LN | 90-21Q59-DK0 DS21Q59DK |
| Unit Weight | 0.046530 oz | 0.046530 oz | - |