AT83C24NDS-PRRUM ATMEL [ATMEL Corporation], AT83C24NDS-PRRUM Datasheet - Page 36
AT83C24NDS-PRRUM
Manufacturer Part Number
AT83C24NDS-PRRUM
Description
Smart Card Reader Interface with Power Management
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C24NDS-PRRUM.pdf
(42 pages)
- Current page: 36 of 42
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Typical NDS
Application
Figure 2. Typical NDS Standard Mode Application Diagram for 1 AT83C24NDS.
36
18.432 or 27MHz
Host
MICROCONTROLLER
AT83C24
XTAL1
VSS
XTAL2
VSS
Note:
EVCC
VCC
Px.y
Px.y
Px.y
Px.y
TWI
RST
INT0
1. The external resistor on I/O can be removed if the host pin has an internal resistor.
2. The internal pull up on PRES/INT is disabled during reset (recommended external 20kOhms
3. Refer to application note for AT83C24NDS software configuration.
pull up).
See note1
for I/O pull up
See note 2
SDA,
SCL
pullups
V
CC
Reset
pullup
A2/CLK
A1/RST
A0/3V
RESET
PRES/INT
I/O, C4, C8
SDA
SCL
CLK
AT83C24NDS
VSS
100nF
C13
DVCC
VSS
100nF
L1
CIO, CC4, CC8
4.7µH
CPRES
CVCCin
CVCC
CCLK
CRST
CVSS
C1
CVSS
VSS
C2
1uF
VSS
2.2µF
4234F–SCR–10/05
Smart
Card 1
CVSS
V
present
CC
2.2uF
C3
card
CVSS
100nF
C10
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