IC SMART CARD INTERFACE DL 32QFN
| Part Number | LTC1955IUH#PBF |
| Date Code | 2030 |
| Quantity Available | 17224 pcs |
| Manufacturer | Linear Technology/Analog Devices |
| Lead Time | Ship within 24 hours |
| QTY | 1000 |
| Datasheet | LTC1955.pdf |
| Minimum Quantity | More than 50pcs |
| Distributor | SingSun |
| RoHS Status | Lead free / RoHS Compliant |
| Ship From | Hong Kong |
| Shipment Way | EMS/SF/DHL/TNT/UPS/FedEx |
| Base Product Number | LTC1955 |
| Packaging | Tube |
| Country of Assembly | SINGAPORE |
| Country of Diffusion | UNITED STATES |
| Lot Number | ZH46507.39 |
| MSL | 1 |
| Applications | - |
| Interface | 4-Wire Serial |
| Voltage - Supply | 1.7 V ~ 5.5 V |
| Package / Case | 32-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) |
| Mounting Type | Surface Mount |
The LTC1955IUH#PBF 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 LTC1955IUH#PBF is available in a low profile (0.75mm) 5mm × 5mm QFN package.
