AT83C26_07 Datasheet, PDF (1/77 Pages) ATMEL Corporation – Multiple Smart Card Reader Interface With Power Management

Features
• 5 Smart Card Interfaces
– Compliance with ISO 7816, EMV2000, GIE-CB and GSM Standards
– Direct Connection to the Smart Cards
Logic Level Shifters
Short Circuit Current Limitation
4kV+ ESD Protection (MIL/STD 883 Class 3)
– 1 or 2 Master Smart Card interfaces
Synchronous Card support (with C4 and C8 Contacts)
Card Detection and Automatic de-activation sequence on card extraction
– 1 to 4 SAM/SIM cards (15 to 30mA each)
– Programmable Voltage for each smart card
Class A: 5V ±0.4V at 60 mA (±0.25V at 65 mA with VCC= 5V±10%)
Class B: 3V ±0.2V at 60 mA
Class C: 1.8V ±0.14V at 40mA
– Low Ripple Noise: < 200 mV
– Programmable Activation Sequence
– Automatic de-activation on card power-fail or over-current and system power-fail
– Card Clock Stop High or Low for Card Power-down Modes
• Versatile Host Interface
– Two Wire Interface (TWI) Link at 400kbit/s
Programmable Address allow up to 4 AT83C26 on the bus
– Programmable Interrupt Output
• Reset Output Includes
– Power-On Reset (POR)
– Power-Fail Detector (PFD)
• Extended Voltage Operation: 3 to 5.5V
• Low Power Consumption
– 5 mA Maximum Operating Current (without Smart Card)
– 150 mA Maximum In-rush Current (each DC/DC)
– 30 µA Typical Power-down Current (without Smart Card)
• 4 to 48 MHz Clock Input
• System clock derived from the external clock input
• Industrial Temperature Range: -40 to +85°C
• Packages: QFN48, VQFP48
Multiple Smart
Card Reader
Interface With
Power
Management
AT83C26
Description
The AT83C26 is a smart card reader interface IC for smart card reader/writer applica-
tions such as EFT/POS terminals and set top boxes. It enables the management of
any type of smart card from any kind of host. Up to 4 AT83C26 can be connected in
parallel thanks to the programmable TWI address.
Its high efficiency DC/DC converters and low quiescent current in stand-by mode
make it particularly suited to low power and portable applications. The reduced bill of
material allows to lower significantly the system size and cost. A sophisticated protec-
tion system guarantees timely and controlled shutdown upon error conditions.
7511D–SCR–02/07