tda8023 NXP Semiconductors, tda8023 Datasheet - Page 5

• Manufacturer Part Number: tda8023
• Description: Tda8023 Low Power Ic Card Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TDA8023_1
Product data sheet
7.2 Pin description
Table 3.
[1]
[2]
[3]
[4]
Symbol
VUP
INT
SDWN
V
SDA
SCL
SAD0
SPRES
CLKIN
GND
I/OUC
C8
C4
I/O
GNDC
CLK
V
RST
PRES
PORADJ
CDEL
V
SAM
GNDP
SBM
V
SBP
SAP
DDI
CC
DD
DDP
I = input, O = output, S = supply, C = configuration.
PRES is active-HIGH when SPRES = LOW and PRES is active-LOW when SPRES = HIGH.
With integrated pull-up to V
With integrated pull-up to V
Pin description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Type
O
O
I
S
I/O
I
I
I
I
S
I/O
I/O
I/O
I/O
S
O
S
O
I
I
C
S
C
S
C
S
C
C
[3]
[4]
[4]
[4]
Rev. 01 — 16 July 2007
[1]
DD(INTF)
CC
.
Description
output of the DC-to-DC converter
Negative-channel Metal Oxide Semiconductor (NMOS) interrupt
to the host (active LOW and open-drain) (see fault detection in
Section 8.7
shutdown and reset input
interface positive supply voltage
serial data line to/from the I
serial clock line from the I
I
select PRES mode
external clock input
ground connection
data in/out from/to microcontroller
auxiliary input/output to/from the card (contact C8)
auxiliary input/output to/from the card (contact C4)
data input/output to/from (contact C7 of) the card
ground connection for the card (contact C5)
clock output to (contact C3 of) the card
supply voltage for the card (contact C1)
reset output to (contact C2 of) the card
card presence input with a 10 ms built-in debouncing system
input for changing the power-on reset threshold with an external
resistor bridge.
In case no external resistor bridge is used, it is mandatory to
connect this pin to GND to avoid possible perturbations.
delay capacitor connection for the voltage supervisor (1 ms per
2 nF)
power supply
connection for the DC-to-DC converter
ground connection for the DC-to-DC converter
connection for the DC-to-DC converter
positive supply for the DC-to-DC converter
connection for the DC-to-DC converter
connection for the DC-to-DC converter
2
C-bus address selection
.
“Protection”)
[2]
2
C-bus master
2
C-bus master (open-drain)
Low power IC card interface
TDA8023
© NXP B.V. 2007. All rights reserved.
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