поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

TDA8024AT датащи(PDF) 11 Page - NXP Semiconductors

номер детали TDA8024AT
подробное описание детали  IC card interface
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  PHILIPS [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TDA8024AT датащи(HTML) 11 Page - NXP Semiconductors

Back Button TDA8024AT Datasheet HTML 7Page - NXP Semiconductors TDA8024AT Datasheet HTML 8Page - NXP Semiconductors TDA8024AT Datasheet HTML 9Page - NXP Semiconductors TDA8024AT Datasheet HTML 10Page - NXP Semiconductors TDA8024AT Datasheet HTML 11Page - NXP Semiconductors TDA8024AT Datasheet HTML 12Page - NXP Semiconductors TDA8024AT Datasheet HTML 13Page - NXP Semiconductors TDA8024AT Datasheet HTML 14Page - NXP Semiconductors TDA8024AT Datasheet HTML 15Page - NXP Semiconductors Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 29 page
background image
2004 July 12
11
Philips Semiconductors
Product specification
IC card interface
TDA8024
8.5
Inactive mode
After a Power-on reset, the circuit enters the inactive
mode. A minimum number of circuits are active while
waiting for the microcontroller to start a session:
• All card contacts are inactive (approximately 200 Ω to
GND)
• Pins I/OUC, AUX1UC and AUX2UC are in the
high-impedance state (11 k
Ω pull-up resistor to VDD)
• Voltage generators are stopped
• XTAL oscillator is running
• Voltage supervisor is active
• The internal oscillator is running at its low frequency.
8.6
Activation sequence
After power-on and after the internal pulse width delay, the
system microcontroller can check the presence of a card
using the signals OFF and CMDVCC as shown in Table 2.
Table 2
Card presence indication
If the card is in the reader (this is the case if PRES or
PRES is active), the system microcontroller can start a
card session by pulling CMDVCC LOW. The following
sequence then occurs (see Fig.6):
1. CMDVCC is pulled LOW and the internal oscillator
changes to its high frequency (t0).
2. The voltage doubler is started (between t0 and t1).
3. VCC rises from 0 to 5 V (or 3 V) with a controlled slope
(t2 =t1 + 1.5 × T) where T is 64 times the period of the
internal oscillator (approximately 25
µs).
4. I/O, AUX1 and AUX2 are enabled (t3 =t1 + 4T) (these
were pulled LOW until this moment).
5. CLK is applied to the C3 contact of the card reader (t4).
6. RST is enabled (t5 =t1 + 7T).
The clock may be applied to the card using the following
sequence:
1. Set RSTIN HIGH.
2. Set CMDVCC LOW.
3. Reset RSTIN LOW between t3 and t5; CLK will start at
this moment.
4. RST remains LOW until t5, when RST is enabled to be
the copy of RSTIN.
5. After t5, RSTIN has no further affect on CLK; this
allows a precise count of CLK pulses before toggling
RST.
If the applied clock is not needed, then CMDVCC may be
set LOW with RSTIN LOW. In this case, CLK will start at t3
(minimum 200 ns after the transition on I/O), and after t5,
RSTIN may be set HIGH in order to obtain an Answer To
Request (ATR) from the card.
Activation should not be performed with RSTIN held
permanently HIGH.
0
(2)
(1)
6
4
2
0
20
40
t (ns)
Vo
(V)
12
8
4
0
Io
(mA)
60
FCE661
Fig.6
I/O, AUX1 and AUX2 output voltage and
current as functions of time during a
LOW-to-HIGH transition.
(1) Current.
(2) Voltage.
OFF
CMDVCC
INDICATION
HIGH
HIGH
card present
LOW
HIGH
card not present


Аналогичный номер детали - TDA8024AT

производительномер деталидатащиподробное описание детали
logo
ARTSCHIP ELECTRONICS CO...
TDA8024AT ARTSCHIP-TDA8024AT Datasheet
3Mb / 25P
   IC card interface
More results

Аналогичное описание - TDA8024AT

производительномер деталидатащиподробное описание детали
logo
NXP Semiconductors
TDA8002 PHILIPS-TDA8002 Datasheet
132Kb / 28P
   IC card interface
1997 Nov 04
TDA8002C PHILIPS-TDA8002C Datasheet
139Kb / 28P
   IC card interface
1999 Oct 12
TDA8025 PHILIPS-TDA8025 Datasheet
178Kb / 38P
   IC card interface
Rev. 01-6 April 2009
TDA8024 NXP-TDA8024 Datasheet
181Kb / 29P
   IC card interface
2004 July 12
logo
ARTSCHIP ELECTRONICS CO...
TDA8024 ARTSCHIP-TDA8024 Datasheet
3Mb / 25P
   IC card interface
logo
NXP Semiconductors
TDA8004T PHILIPS-TDA8004T Datasheet
109Kb / 24P
   IC card interface
1999 Dec 30
TDA8004AT PHILIPS-TDA8004AT Datasheet
132Kb / 22P
   IC card interface
2004 May 10
TDA8025 NXP-TDA8025 Datasheet
188Kb / 38P
   IC card interface
Rev. 01-6 April 2009
logo
Unisonic Technologies
UTDA8024 UTC-UTDA8024 Datasheet
351Kb / 15P
   IC CARD INTERFACE
logo
ON Semiconductor
NCN8024 ONSEMI-NCN8024_12 Datasheet
180Kb / 16P
   Smart Card Interface IC
October, 2012 ??Rev. 4
More results


Html Pages

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 29


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com