TDA8035HN Datasheet, PDF (6/32 Pages) NXP Semiconductors – Smart card interface externally by a resistor bridge

NXP Semiconductors
TDA8035HN
Smart card interface
Table 3.
Symbol
SBM
Pin description …continued
Pin
Supply
17
V_DDP
Type
I/O
V_DDP
18
SBP
19
V_DDP
V_DDP
supply
I/O
SAP
20
V_DDP
I/O
VUP
21
Vcc
22
V_DDP
I/O
Vcc
O
RST
23
CLK
24
GNDC
25
AUX1
26
Vcc
O
Vcc
O
-
supply
Vcc
I/O
AUX2
27
Vcc
I/O
I/O
28
CS
29
PRESN
30
Vcc
I/O
V_DD(INTF) I
V_DD(INTF) I
AUX1UC
31
AUX2UC
32
V_DD(INTF) I/O
V_DD(INTF) I/O
Description
DC/DC converter capacitor ; connected between SBM and SBP; C =
330nF with ESR < 100mΩ
Power supply voltage
DC/DC converter capacitor ; connected between SBM and SBP; C =
330nF with ESR < 100mΩ
DC/DC converter capacitor ; connected between SAM and SAP; C =
330nF with ESR < 100mΩ
DC/DC converter output decoupling capacitor connected between
VUP and GNDP; C = 1uF with ESR < 100mΩ
supply for the card (C1)( decouple to GND with 2 × 220nF capacitors
with ESR < 100mΩ).
card reset (C2)
clock to the card (C3)
card signal ground
auxiliary data line to/from the card (C4)(internal 10 k pull up resistor to
Vcc )
auxiliary data line to/from the card (C8)(internal 10 k pull up resistor to
Vcc )
data line to/from the card (C7)(internal 10 k pull up resistor toVcc)
Chip Select input from the host ( active High )
card presence contact input (active LOW); if PRESN is true, then the
card is considered as present. A debouncing feature of 4.05 ms typ.
is built in.
auxiliary data line to/from the host (internal 10 k pull up resistor to
V_DD(INTF) )
auxiliary data line to/from the host (internal 10 k pull up resistor to
V_DD(INTF) )
TDA8035HN
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1.0 — 19 April 2011
© NXP B.V. 2011. All rights reserved.
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