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| Part Number | PEF 22554 HT V2.1 |
| Datasheet | PEF 22554 HT V2.1 datasheet |
| Description | IC LIU E1/T1/J1 144TQFP |
| Manufacturer | Infineon Technologies |
| Series | QuadFALC™ |
| Part Status | Obsolete |
| Function | Framer, Line Interface Unit (LIU) |
| Interface | E1, HDLC, J1, T1 |
| Number of Circuits | 4 |
| Voltage - Supply | 1.8V, 3.3V |
| Current - Supply | - |
| Power (Watts) | - |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 144-LQFP |
| Supplier Device Package | P-TQFP-144-6 |