at83c24nds-tisum ATMEL Corporation, at83c24nds-tisum Datasheet - Page 34
at83c24nds-tisum
Manufacturer Part Number
at83c24nds-tisum
Description
Smart Card Reader Interface With Power Management
Manufacturer
ATMEL Corporation
Datasheet
1.AT83C24NDS-TISUM.pdf
(42 pages)
- Current page: 34 of 42
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Typical
Application
Figure 1. Typical Standard Mode Application Diagram for 3 AT83C24 (up to 8 AT83C24 if needed)
Note:
34
1. The external resistor on I/O can be removed if the host pin has an internal resistor.
Host
MICROCONTROLLER
AT83C24
XTAL1
VSS
4 to 48 MHz
XTAL2
VSS
EVCC
VCC
Px.y
TWI
RST
INT0
See note
for I/O pull up
SDA,
SCL
pullups
V
CC
Reset
pullup
V
VSS
V
VSS
CC
V
CC
CC
A2/CK
A1/RST
A0/3V
A0/3V
RESET
I/O, C4, C8
A2/CK
A1/RST
I/O, C4, C8
EVCC
RESET
A2/CK
A1/RST
A0/3V
EVCC
SCL
SDA
PRES/INT
PRES/INT
RESET
SDA
SCL
PRES/INT
I/O, C4, C8
SDA
SCL
CLK
CLK
CLK
VSS
VSS
100nF
C14
VSS
100nF
C15
AT83C24
AT83C24
100nF
C13
AT83C24
L2
CIO, CC4, CC8
L3
CIO, CC4, CC8
L1
CIO, CC4, CC8
4.7µH
4.7µH
DVCC
4.7µH
DVCC
CPRES
CVCCin
CVCCin
CPRES
DVCC
CCLK
CVCC,
CVCC,
CCLK
CRST
CPRES
CRST
CVCCin
CCLK
CVCC,
CRST
C4
C5
C1
CVSS
VSS
VSS
CVSS
CVSS
100nF
C5
VSS
100nF
C8
2.2µF
100nF
C2
2.2µF
VSS
V
VSS
CVSS
Card 2
2.2µF
V
Card 3
CVSS
VSS
CC
4234F–SCR–10/05
CVSS
CC
Card 1
2.2uF
C6
V
100nF
2.2uF
C9
100nF
2.2uF
C3
CC
100nF
CVSS
CVSS
CVSS
1uF
C11
1uF
C12
1uF
C10
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