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| PartNumber | LE57D122BTCT | LE57D122BTC | LE57D122 |
| Description | Telecom Interface ICs 2CH SLIC, 63DB LGBAL, PQE44, T&R | Telecom Interface ICs 2CH SLIC, 63DB LGBAL, PQE44 | |
| Manufacturer | Microchip | Microchip | Microsemi Corporation |
| Product Category | Telecom Interface ICs | Telecom Interface ICs | Interface - Telecom |
| RoHS | Y | Y | - |
| Packaging | Reel | Tray | Tray Alternate Packaging |
| Brand | Microchip / Microsemi | Microchip / Microsemi | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Telecom Interface ICs | Telecom Interface ICs | - |
| Factory Pack Quantity | 1500 | 800 | - |
| Subcategory | Interface ICs | Interface ICs | - |
| Series | - | - | - |
| Package Case | - | - | 44-TQFP Exposed Pad |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Function | - | - | Subscriber Line Interface Concept (SLIC) |
| Interface | - | - | 2-Wire |
| Voltage Supply | - | - | 4.75 V ~ 5.25 V |
| Supplier Device Package | - | - | 44-TQFP-EP (10x10) |
| Number of Circuits | - | - | 2 |
| Power Watts | - | - | - |
| Current Supply | - | - | - |