ncn8024 ON Semiconductor, ncn8024 Datasheet - Page 14

• Manufacturer Part Number: ncn8024
• Description: Ncn8024 Smart Card Interface Ic
• Manufacturer: ON Semiconductor

ESD PROTECTION
the ESD spikes voltages. To cope with the different ESD
voltages developed across these pins, the built in structures
have been designed to handle either 2 kV, when related to the
micro controller side, or 8 kV when connected with the
external contacts (HBM model). Practically, the CRD_RST,
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
*Consult Sales Office
+5V or
Specifications Brochure, BRD8011/D.
VDDP
100 nF
+3.3V
ORDERING INFORMATION
NCN8024DWR2G
NCN8024DTBR2G
The NCN8024 includes devices to protect the pins against
+3.3V
VDD
100 kW
100 nF
Device
+
100 nF
10 mF
CRD_PRES
CRD_PRES
CRD_AUX2
CRD_AUX1
CRD_GND
CRD_I/O
CLKDIV1
CLKDIV2
GNDP
5V/3V
VDDP
VUP
C2
C1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Figure 8. Application Schematic
NCN6024
TSSOP−28
(Pb−Free)
(Pb−Free)
SOIC−28
Package
http://onsemi.com
220 nF
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
INT
CMDVCC
AUX2uc
AUX1uc
I/Ouc
NC
CLKIN
GND
VDD
RSTIN
PORADJ
CRD_VCC
CRD_RST
CRD_CLK
CRD_CLK,
CRD_PRES and CRD_PRES pins can sustain 8 kV. The
CRD_VCC pin has the same ESD protection and can source
up to 75 mA continuously, the absolute maximum current
being internally limited with a max at 150 mA. The
CRD_VCC current limit depends on V
100 nF
CRD_IO,
+3.3V
VDD
R1
R2
1000 / Tape & Reel
2500 / Tape & Reel
connected to Ground
Optional R1/R2 resistor divider −
if not used PORADJ has to be
1
2
3
4
CRD_AUX1,
Shipping
3.3 V Microcontroller
DET
Vcc
Normally Open
SMART CARD
RST
CLK
C4
330 nF
XTAL1 XTAL2
†
DDP
GND
Vpp
I/O
C8
and CRD_VCC.
CRD_AUX2,
5
6
7
8