Datasheet for LTC1955:
- Manufacturer Part Number : LTC1955
- Manufacturer : AD
- Description : Dual Smart Card Interface with Serial Control
- Series : LTC1955
- Reference Price : USD 1.96
- Our Price : We have a better price, contact us by email
- Product Type : SIM Interface
- Function : -
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC1955
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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The LTC1955 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 daisychain fashion so that the number of wires to the card socket board is independent of the number of sockets. Status data is returned over the same interface.
Extensive security features ensure proper deactivation sequencing in the event of a supply fault or a smart card electrical fault. The smart card pins can withstand greater than 10kV ESD in-situ with no additional components.
The LTC1955 is available in a low profile (0.75mm) 5mm × 5mm QFN package.
Applications
- Handheld Payment Terminals
- Pay Telephones
- ATM Machines
- POS Terminals
- Computer Keyboards
- Multiple S.A.M. Sockets
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
