S8024RN View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
S8024RN Datasheet PDF : 27 Pages
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DS_8024RN_020
11 Typical Application Schematic
73S8024RN Data Sheet
VDD
AUX2UC_to/from_uC
AUX1UC_to.from_uC
I/OUC_to/from_uC
See NOTE 5
CLKDIV1_from_uC
CLKDIV2_from_uC
5V/3V_select_from_uC
See NOTE 6
See NOTE 3
VPC
See NOTE 2
C4
100nF
C5
10uF
CLKSTOP_from_uC
CLKLVL_from_uC
See NOTE 5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CLKDIV1
CLKDIV2
5V3V_
GND
NC
VPC
CLKSTOP
CLKLVL
PRESB
PRES
I/O
AUX2
AUX1
GND
AUX2UC
AUX1UC
I/OUC
XTALOUT
XTALIN
OFF_
GND
VDD
RSTIN
CMDVCC_
VDDF_ADJ
VCC
RST
CLK
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
R3
Rext2
R1
Rext1
External_clock_from uC
- OR -
VDD
See NOTE 1
C6
100nF
C2
22pF
Y1
C3
CRYSTAL 22pF
See NOTE 4
73S8024RN
SO28
See note 7
VDD
NOTES:
R2
1) VDD = 2.7V to 5.5V DC.
20K
2) VPC = 4.75V(EMV, ISO)/4.85(NDS) to 5.5V DC
Card detection
switch is
normally closed
3) Required if external clock from uP is used.
4) Required if crystal is used.
Y1, C2 and C3 must be removed if external clock is used.
5) Optional. Can be left open.
6)Internal pull-up allows it to be left open if unused.
7) R1 and R3 are external resistors that adjust the VDD
fault voltage. Can be left open.
Smart Card Connector
NDS & ISO7816=1uF, EMV=3.3uF
Low ESR (<100mohms) C1
C1 should be placed near the SC
connecter contact
CLK track should be routed
far from RST, I/O, C4 and
C8.
Figure 8: 73S8024RN – Typical Application Schematic
OFF_interrupt_to_uC
RSTIN_from_uC
CMDVCC_from_uC
Rev. 2
15
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