TDA8035HN/C1,151 NXP Semiconductors, TDA8035HN/C1,151 Datasheet - Page 14

• Manufacturer Part Number: TDA8035HN/C1,151
• Description: Interface - Specialized SMART CARD INTERFACE
• Manufacturer: NXP Semiconductors

Specifications of TDA8035HN/C1,151

• Rohs: yes
• Factory Pack Quantity: 490

NXP Semiconductors
TDA8035HN
Product data sheet
COMPANY PUBLIC
8.8 Deactivation sequence
8.9 V
When a session is completed, the microcontroller sets the CMDVCCN line to the HIGH
state. The circuit then executes an automatic deactivation sequence by counting the
sequencer back and ends in the inactive state (see
V
35 mA at V
V
This detection is internally filtered, allowing the card to draw spurious current pulses of up
to 200 mA for some milliseconds, without causing a deactivation. The average current
value must remain below the maximum.
1. RST goes LOW (t
2. CLK is stopped LOW (t
3. I/O, AUX1 and AUX2 are pulled LOW (t
4. V
5. VUP falls to zero (t
6. V
7. All card contacts become low-impedance to GND. I/OUC, AUX1UC and AUX2UC
8. The internal oscillator reverts to its lower frequency.
Fig 9.
CC
CC
CC
CMDVCCN
reaches its inactive state
remain pulled up to V
buffer is able to deliver up to 65 mA continuously at V
buffer has an internal overload detection at approximately 125 mA.
regulator
CC
CC
Oscint
falls to zero (t
Xtal1
< 0.4 V (t
VUP
RST
CLK
V
Deactivation sequence
I/O
CC
CC
= 1.8 V.
All information provided in this document is subject to legal disclaimers.
de
t10
= t
Rev. 2.1 — 3 December 2012
11
t11
14
15
11
= t
= t
= t
DD(INTF)
+ 3T/2 + V
t12
10
12
11
11
+ 3T/64)
= t
+ 3T/2). The deactivation sequence is completed when V
+ 7T/2)
t13
high frequency
11
via a 10 k resistor.
+T/2)
t14
CC
fall time)
13
= t
11
+ T)
Figure
CC
9):
t15
= 5 V and V
TDA8035HN
low frequency
Smart card interface
© NXP B.V. 2012. All rights reserved.
CC
= 3 V, and
001aan753
T / 2
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CC