LTC4556

Features: Electrical Specifications Are ISO7816-3 and EMV Compatible Control/Status Serial Port May be Daisy-Chained for Multicard Applications Automatic Shutdown on Electrical Faults Buck Boost Charge Pump Generates 5V, 3V or 1.8V Outputs (Smart Card Classes A, B and C) Automatic Level Translati...

product image

LTC4556 Picture
SeekIC No. : 004402614 Detail

LTC4556: Features: Electrical Specifications Are ISO7816-3 and EMV Compatible Control/Status Serial Port May be Daisy-Chained for Multicard Applications Automatic Shutdown on Electrical Faults Buck Boost Ch...

floor Price/Ceiling Price

Part Number:
LTC4556
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/12/21

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

  Electrical Specifications Are ISO7816-3 and EMV Compatible
  Control/Status Serial Port May be Daisy-Chained for Multicard Applications
  Automatic Shutdown on Electrical Faults
  Buck Boost Charge Pump Generates 5V, 3V or 1.8V Outputs (Smart Card Classes A, B and C)
  Automatic Level Translation
  Dynamic Pull-Ups Deliver Fast Signal Rise Times*
  Supervisory Functions Prevent Smart Card Faults
  Low Operating Current: 250mA Typical
  VIN: 2.7V to 5.5V
  Ultralow Shutdown Current
  >10kV ESD on Smart Card Pins
  Small 24-Pin 4mm * 4mm QFN Package



Application

  Handheld Payment Terminals
  Pay Telephones
  ATM Machines
  POS Terminals
  Computer Keyboards
  Multiple S.A.M. Sockets



Pinout

  Connection Diagram


Specifications

VBATT, DVCC, CPO, FAULT,
UNDERV to GND ....................................... 0.3V to 6.0V
PRES, DATA, RIN, SYNC, ASYNC,
LD, DIN, SCLK to GND ................................. 0.3V to (DVCC + 0.3V)
I/O, CLK ..................................................... 0.3V to (VCC + 0.3V)
ICC (Note 5) .............................................. 65mA
VCC Short-Circuit Duration ......................... Indefinite
Operating Temperature Range (Note 4) .... 40°C to 85°C
Storage Temperature Range ..................... 65°C to 125°C



Description

The LTC®4556 provides all necessary power control, level translation and supervisory functions for a smart card or S.A.M. card interface. The part contains a low noise charge pump** plus LDO for generating VCC power, as well as all necessary level shifting circuitry.

The card voltage can be set to either 1.8V, 3V or 5V. The LTC4556 includes a card detection channel with automatic debounce circuitry. To reduce wiring costs, the LTC4556 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 LTC4556 is available in a small, low profile (0.75mm), 4mm × 4mm QFN package.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
Line Protection, Backups
Inductors, Coils, Chokes
Resistors
Sensors, Transducers
View more