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| Part Number | DS21455N+ | DS21455+ | DS21455N | 
|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Product Status | Obsolete | Obsolete | Obsolete | 
| Function | Line Interface Unit (LIU) | Line Interface Unit (LIU) | Line Interface Unit (LIU) | 
| Interface | LIU | LIU | LIU | 
| Number of Circuits | 4 | 4 | 4 | 
| Voltage - Supply | 3.135V ~ 3.465V | 3.135V ~ 3.465V | 3.135V ~ 3.465V | 
| Current - Supply | - | - | - | 
| Power (Watts) | - | - | - | 
| Operating Temperature | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 256-BGA | 256-BGA | 256-BGA | 
| Supplier Device Package | 256-BGA (27x27) | 256-BGA (27x27) | 256-BGA (27x27) |