Philips TDA8002C

1999 Oct 12 14

Philips Semiconductors Product speciﬁcation

IC card interface TDA8002C

DEACTIVATIONSEQUENCE

When a session is completed, the microcontroller sets the

CMDVCC line to HIGH state or MODE line to LOW state.

The circuit then executes an automatic deactivation

sequence by counting the sequencer down and thus end

in the Idle mode.

Figures 13 and 14 illustrate the deactivation sequence as

follows:

1. RST goes LOW (t11 ≈t10)

2. CLK is stopped (t12 =t

11 +1⁄2T)

3. I/O, AUX1 and AUX2 fall to zero (t13 =t

11 +T)

4. VCC falls to zero (t14 =t

11 +1

⁄

T); a special circuit

ensures that I/O remains below VCC during the falling

slope of VCC

5. VUP falls (t15 =t

11 + 5T).

handbook, full pagewidth

FCE479

CMDVCC

VUP

OSC_INT/64

VCC

I/O

CLK

RSTIN

RST

LOW

tde

t10

t11

t12

t13

t14

t15

Fig.13 Deactivation sequence

Contents

Main IC card interface TDA8002C Page 1999 Oct 12 4 BLOCK DIAGRAM TDA8002CG Fig.1 Block diagram. Page 1999 Oct 12 6 SYMBOL Fig.3 Pin configuration (TDA8002CT/B). Fig.2 Pin configuration (TDA8002CT/A). CT/C TYPE 1999 Oct 12 7 Fig.4 Pin configuration (TDA8002CT/C). Fig.5 Pin configuration (TDA8002CG). TDA8002CT/C Fig.4 Pin configuration (TDA8002CT/C). IC card interface TDA8002C 1999 Oct 12 9 Fig.6 ALARM as a function of VDD (tWpulse width minimum of 10 ms). Fig.7 Chip select. Page Page Page 1999 Oct 12 13 Fig.11 Activation sequence using CMDVCC, CLKDIV1 and CLKDIV2 signals to enable CLK. Fig.12 Activation sequence for synchronous application. Page Page Page Page Page Page Page Page 1999 Oct 12 22 80C51 TDA8002CT/C Fig.16 Application diagram. 1999 Oct 12 23 Application note AN98054 ). 1999 Oct 12 24 PACKAGE OUTLINES SO28: plastic small outline package; 28 leads; body width 7.5 mm SOT136-1 1999 Oct 12 25 LQFP32: plastic low profile quad flat package; 32 leads; body 5 x 5 x 1.4 mm SOT401-1 Data Handbook IC26; Integrated Circuit Packages Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods Philips Semiconductors a worldwide company Printed in The Netherlands