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LINEAR TECHNOLOGY  LTC1955EUH#PBF  Specialized Interface, Serial

LINEAR TECHNOLOGY LTC1955EUH#PBF
Manufacturer Part No:
LTC1955EUH#PBF
Order Code:
2295512
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LTC1955EUH#PBF is a dual Smart Card Interface with serial control. It 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 1.8, 3 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. 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.
  • Power management and control for two smart cards
  • Control/status serial port may be daisy-chained for multicard applications
  • Automatic shutdown on electrical faults
  • Automatic level translation
  • Supervisory functions prevent smart card faults
  • Ultra-low shutdown current
  • 250µA Typical low operating current

Product Information

IC Interface Type:
Serial
Interface Applications:
ATMs, Computer Keyboards, Handheld Payment Terminals, POS Terminals, Pay Telephones
Supply Voltage Min:
2.7V
Supply Voltage Max:
6V
Interface Case Style:
QFN
No. of Pins:
32Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Computers & Computer Peripherals
  • Communications & Networking

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000025