| Part Number | L7557 |
| Manufacturer | Lucent Technologies |
| Title | Low-Power SLICs |
| Description | These electronic subscriber loop interface circuits (SLICs) are optimized for low power consumption while providing an extensive set of features. ... |
| Features |
s Auxiliary input for second battery, and internal switch to enable its use to save power
s Low active power (typical 125 mW during on-hook transmission)
s Supports meter pulse injection
s Spare op amp for meter pulse filtering
s –16 V to –60 V power... |
| Datasheet |
 L7557 Datasheet
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