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LTC1955 - Dual Smart Card Interface

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Features

  • s s LTC1955 Dual Smart Card Interface with Serial Control.

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Datasheet Details

Part number LTC1955
Manufacturer Linear Technology
File Size 294.58 KB
Description Dual Smart Card Interface
Datasheet download datasheet LTC1955 Datasheet
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Full PDF Text Transcription

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www.DataSheet4U.com FEATURES s s LTC1955 Dual Smart Card Interface with Serial Control DESCRIPTIO The LTC®1955 provides all necessary supervisory and power control functions for two smart cards, two S.A.M. cards or a combination of S.A.M. and smart cards. It provides a charge pump for battery powered applications as well as all necessary level shifting circuitry. The card voltages can be independently set to 1.8V, 3V or 5V. Both card interfaces include a card detection channel with automatic debounce circuitry. To reduce wiring costs, the LTC1955 interfaces to a microcontroller via a simple 4-wire serial interface. Multiple devices may be connected in daisy-chain fashion so that the number of wires to the card socket board is independent of the number of sockets.
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