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NCN4557

ON Semiconductor
Part Number NCN4557
Manufacturer ON Semiconductor
Description Dual SIM/SAM/Smart Card Power Supply and Level Shifter
Published Jan 12, 2007
Detailed Description NCN4557 1.8 V/3.0 V Dual SIM/SAM/ Smart Card Power Supply and Level Shifter The NCN4557 is a dual interface analog circ...
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NCN4557
NCN4557

Overview
NCN4557 1.
8 V/3.
0 V Dual SIM/SAM/ Smart Card Power Supply and Level Shifter The NCN4557 is a dual interface analog circuit designed to translate the voltages between SIM, SAM or Smart Cards and a microcontroller (or similar control device).
It integrates two LDOs for power conversion and three level shifters per channel allowing the management of two independent chip cards.
The device fulfills the ISO7816 and EMV smart card interface requirements as well as the GSM and 3G mobile standard.
Due to a built−in sequencer, the device enables automatic activation and deactivation.
Through the ENABLE pin a low current shutdown mode can be activated extending the battery life.
The card power supply ...


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