NCN8025A ONSEMI [ON Semiconductor], NCN8025A Datasheet - Page 13

• Manufacturer Part Number: NCN8025A
• Description: Compact SMART CARD Interface IC
• Manufacturer: ONSEMI [ON Semiconductor]

of 8 ms typical duration. When a card is inserted, output INT
goes High only at the end of the debounce time. When the
card is removed a deactivation sequence is automatically
and immediately performed and INT goes Low.
ESD PROTECTION
the pins against the ESD spike voltages. To cope with the
different ESD voltages developed across these pins, the built
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
ORDERING INFORMATION
NCN8025AMNTXG
NCN8025MTTBG
As illustrated by Figure 8 the device has a debounce timer
The NCN8025 / NCN8025A includes devices to protect
+3.3 V
VDD
100 nF
VDDP
+5 V
Device
+
10 mF
CAUX2
VSEL0
VDDP
PRES
PRES
CI/O
1
2
3
4
5
6
24 23 22
7
8
Exposed Pad
Figure 9. Application Schematic
APPLICATION SCHEMATIC
9
GND
25
10 11 12
21 20 19
http://onsemi.com
(Pb−Free)
(Pb−Free)
Package
QFN24
QFN16
100 nF
17
16
15
14
13
13
18
PORADJ
CLKIN
GND
VDD
RSTIN
INT
recommended to connect
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
CRST, CCLK, CI/O, CAUX1, CAUX2, PRES and PRES
pins can sustain 8 kV. The CVCC pin has the same ESD
protection and can source up to 70 mA continuously, the
absolute maximum current being internally limited with a
max at 150 mA. The CVCC current limit depends on V
and CVCC.
divider − if not used it is
Optional R1/R2 resistor
PORADJ to Ground
100 nF
+3.3 V
R1
R2
VDD
3000 / Tape & Reel
3000 / Tape & Reel
Shipping
1
2
3
4
3.3 V Microcontroller
100 nF
DET
SMART CARD
VCC
RST
CLK
Normally Open
C4
†
XTAL1 XTAL2
220 nF
GND
VPP
I/O
C8
5
6
7
8
DDP