Weltrend | Products

Magnetic stripe decoders and Smart card interface ICs

WT5294

The WT5294 is a cost-effective, addressing multiple smart card interface (MSCI) slots in a Point of Sales (POS) terminal. It can address up to one ICC slot and two Security Access Modules(SAM) card slots or only four SAM slots that be controlled by TWI bus.

Features

- Smart Card interfaces
  
  - Compliance with ISO 7816, EMVCo
  
  - Direct Connection to the Smart Cards
  
  * Direct Level Shifters
  
  * Short circuit protection
  
  * ESD (HBM) protection on the card-side up to 8 kV
  
  - 1 ICC with 2 SAM Cards or 4 SAM cards
  
  - Programmable Voltage for each smart card
  
  * Class A: 5 V±0.4 V at 60 mA (Bypass VIN )
  
  * Class B: 3 V±0.24 V at 55 mA
  
  * Class C: 1.8 V± 0.14 V at 35 mA
  - Host Interface
  - Two wire interface (TWI), max. 400 KHz
  
  - Programmable Smart card supply voltage and CCLK
  
  - Programmable Address allow up to 2 chips
  - Operation Voltage
  - LDO Input Voltage(VIN): 5.0V(support class A, B, C); 3.6V(support class B, C)
  
  - System Operation Voltage (VCC) : 2.7 V to 3.6 V
  - Temperature Range: -40 ℃ to +85 ℃
  - XTAL Oscillation or External Clock Input (2 MHz to 16 MHz)

Applications

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