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| PartNumber | U4090B-PFNY | U4090B-PFNG3Y |
| Description | Telecom Interface ICs COM.CORDED - FEATURE | Telecom Interface ICs COM.CORDED - FEATURE |
| Manufacturer | Microchip | Microchip |
| Product Category | Telecom Interface ICs | Telecom Interface ICs |
| Product | Telephone Circuits | Telephone Circuits |
| Supply Voltage Max | 3.5 V | 3.5 V |
| Supply Voltage Min | 3.1 V | 3.1 V |
| Minimum Operating Temperature | - 25 C | - 25 C |
| Maximum Operating Temperature | + 75 C | + 75 C |
| Mounting Style | SMD/SMT | SMD/SMT |
| Package / Case | SSO-44 | SSO-44 |
| Height | 2.35 mm | 2.35 mm |
| Length | 18.05 mm | 18.05 mm |
| Width | 7.4 mm | 7.4 mm |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Operating Supply Voltage | 3.3 V | 3.3 V |
| Product Type | Telecom Interface ICs | Telecom Interface ICs |
| Factory Pack Quantity | 1550 | 2000 |
| Subcategory | Interface ICs | Interface ICs |