AT83EC5123 ATMEL Corporation, AT83EC5123 Datasheet - Page 175

• Manufacturer Part Number: AT83EC5123
• Description: (AT8xx512x) Smart Card Reader ICs
• Manufacturer: ATMEL Corporation

Typical Application
Figure 98. Typical Smart Card Reader and Keyboard Application Schematic
4202B–SCR–07/03
KEYBOARD
USB HOST
Note 1: As close as possible from MCU
SCAN OUTPUT
SCAN OUTPUT
SCAN OUTPUT
SCAN INPUT
LINE D+
LINE D-
RESET
(Note 1)
10 K
10 µH
(optional capacitor)
(Note 1)
VCC
VCC
VCC
1.5 k
27
27
GND
(Note 1)
+
(Note 1)
100 nF
AVSS
EA
LI
LEDX
V
D+
D-
P0
P2
P4
P5
RST
REF
DIGITAL
POWER SUPPLY
GND
GND
VSS
VCC
GND
PLLF
GND
ANALOG
POWER SUPPLY
AVCC
XTAL1 XTAL2
GND
AVSS
8 MHz
22 pF
CPRES
CRST1
CCLK1
CVCC
DVCC
100 nF
CVSS
CCLK
CRST
CIO1
CC8
CC4
CIO
(Note 1)
GND
22 pF
CVSS
GND
VCC
(Note 1)
(Optional Resistor)
1 M
100 nF
(Note 1)
(Note 1)
GND
GND
CVSS
470 nF
(Note 1)
AT8xC5122/23
+
10 uF
(Note 1)
MASTER CARD
GROUND
MASTER CARD
POWER SUPPLY
CARD PRESENCE
SWITCH
I/O
RST
CLK
I/O
C8
C4
CLK
RST
ALTERNATE
CARD
MASTER
CARD
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