AT89C5122 ATMEL [ATMEL Corporation], AT89C5122 Datasheet - Page 189

• Manufacturer Part Number: AT89C5122
• Description: MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
• Manufacturer: ATMEL [ATMEL Corporation]

Smart Card Interface
Card VCC 5V (for IEC7816-3 Class A cards)
Card VCC 3V Power Supply (for IEC7816-3 Class B cards)
4202D–SCR–06/05
Symbol
Vcc
CI
CV
CV
T
T
Symbol
Vcc
CI
CV
CV
T
T
OFF
ON
OFF
ON
CC_ovf
CC_ovf
CC
CC
CC
CC
Parameter
Power Supply
Card Supply Current overflow
Card Supply Voltage
Ripple on Card Voltage
Card Supply Voltage during spike on Icc
CVcc to 0
0 to CVcc
Parameter
Power Supply
Card Supply Current overflow
Card Supply Voltage
Ripple on Vcard
Card Supply Voltage during spike on Icc
CVcc to 0
0 to CVcc
Min
4.0
4.6
4.5
Min
2.76
3.6
2.7
Typ
100
Typ
100
Max
200
750
750
5.5
5.4
5.5
Max
3.24
200
750
750
5.5
3.3
Unit
mA
mV
Unit
µs
µs
V
V
mA
mV
µs
µs
V
V
V
Test Conditions
CI
0 < CIcc < 60 mA
Max. charge 20 nA.s
Max. duration 400 ns
Max. variation CI
Cload=10µF, Lload=10µH
Vcard = CVcc to 0.4V
Cload=10µF, Lload=10µH
Vcard = 0V to CVcc
With Boost at 60%
Test Conditions
CI
0 < CI
Maxi. charge 10nA.s
Max. duration 400 ns
Max. variation CI
Cload=10µF, Lload=10µH
Vcard = CVcc to 0.4V
Cload=10µF, Lload=10µH
Vcard = 0V to CVcc
With Boost at 60%
CC
CC
= 60 mA
= 60 mA
CC
< 60 mA
CC
CC
100 mA
50mA
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