Philips tda8003ts DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

TDA8003TS

C-bus SIM card interface

Product speciﬁcation Supersedes data of 2000 Feb 29 File under Integrated Circuits, IC02

2000 Apr 20

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

FEATURES

• Subscriber Identification Module (SIM) cardinterface in accordancewithGSM11.11,GSM11.12(GlobalSystem for Mobile communication) and ISO 7816 requirements

• VCCregulation (3 or 5 V ±8%) with controlled rise and fall times

• Card take-off protection

• Oneprotectedandbufferedpseudo-bidirectionalI/O line

(I/O referenced to VCC and SIMI/O referenced to V

• Clock generation (up to 10 MHz) with synchronous start and frequency doubling

• Clock stop LOW, clock stop HIGH or 1.25 MHz (from internal oscillator) for cards Power-down mode

• Automatic activation and deactivation sequences of an independent sequencer

• Automatic processing of pin RST with count of the CLK cycles for start of the Answer To Reset (ATR)

• Warm reset command

• Supply voltage supervisor for Power-on reset, spike

killing and emergency deactivation in case of supply drop-out

• DC-to-DC converter (doubler, tripler or follower) allowing operation in a 3 or 5 V environment (2.5 ≤ VDD≤ 6V)

• EnhancedElectrostatic Discharge (ESD) protections on card side (6 kV minimum)

• Power-down mode with several active features and current reduction

• Off mode with 2 µA current

• Control from a microcontroller via a 400 kHz slave

I2C-bus (4 possible addresses: 48H, 4AH, 4CH and 4EH)

• Four parallel devices possible due to 2 sub-address wires

• Interface signals supplied by an independent voltage (1.5 ≤ V

DDI

≤ 6 V).

DDI

TDA8003TS

APPLICATIONS

• GSM mobile phones

)

• SAM interfaces in banking terminals

• Portable card readers, etc.

GENERAL DESCRIPTION

The TDA8003TS is a low cost one chip SIM interface, in accordance with GSM11.11, GSM11.12 and EMV96 (Europay, Mastercard, Visa) with card current limitation. Controlled by I2C-bus, it is optimized in terms of board space, external components count and connection count (see Chapter “Application information”).

The integrated DC-to-DC converter ensures full cross-compatibility between 3 or 5 V cards and 3 or 5 V environments. The very low-power consumption in Power-down mode and Off mode saves battery power.

ORDERING INFORMATION

TYPE

NUMBER

TDA8003TS/C1 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 TDA8003TS/C2 SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1

2000 Apr 20 2

NAME DESCRIPTION VERSION

PACKAGE

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

TDA8003TS

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

supply voltage on pins V and V

DDP

supply current on pins V and V

DDP

DDS

Off mode; VDD=3V −−2µA Power-down mode; V

=3V;

2.5 − 6V

−−500 µA VCC=5V; ICC= 100 µA; SIMCLK connected to PGND or V

DDI

;

CLK is stopped

DDI

active mode; V ICC= 6 mA; f

active mode; V ICC= 10 mA; f

active mode; V ICC= 6 mA; f

active mode; V ICC= 10 mA; f

interface signal supply voltage 1.5 − 6V card supply voltage 5 V card; active mode;

=3V; VCC=3V;

= 3.25 MHz

CLK

= 3 V; VCC=5V;

= 3.25 MHz

CLK

= 5 V; VCC=3V;

= 3.25 MHz

CLK

= 5 V; VCC=5V;

= 3.25 MHz

CLK

−−18 mA

−−50 mA

−−10 mA

−−30 mA

4.6 5 5.4 V 0<ICC< 15 mA; 40 nAs dynamic load on 200 nF capacitor

3 V card; active mode; 0<I

< 10 mA; 24 nAs dynamic

2.75 3 3.25 V

load on 200 nF capacitor

SR slew rate on V t

act

i(SIMCLK)

amb

deactivation time −−120 µs activation time −−150 µs clock input frequency 0 − 20 MHz operating ambient temperature −40 − +85 °C

(rise and fall) C

5 V card; bit PDOWN = 1; I 3 V card; bit PDOWN = 1; I

= 200 nF 0.05 − 0.25 V/µs

L(max)

< 5 mA 4.6 − 5.4 V

< 5 mA 2.75 − 3.25 V

2000 Apr 20 3

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

BLOCK DIAGRAM

handbook, full pagewidth

VUP

100 nF

PGND

100 nF

S3 4

DC-TO-DC

CONVERTER

S4 6

100 nF

S1 2

S2 7

DDP

2.2 µF

DDS

100 nF

VOLTAGE

SUPERVISOR

TDA8003TS

SIMERR

DEL

10 nF

TDA8003TS

SEQUENCER

I/O

INTERNAL

ANALOG

DRIVERS

AND

PROTECTIONS

OSCILLATOR

SGND

I2C-BUS

INTERFACE

AND

REGISTERS

CLOCK

COUNTER

CLOCK

CIRCUITRY

200 nF

RST

CLK

PRES

23 22 19 20

MGR434

DDI

SAD1 SAD0 SDA SCL

PWROFF

SIMI/O

SIMCLK

Fig.1 Block diagram.

2000 Apr 20 4

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

TDA8003TS

PINNING

SYMBOL PIN DESCRIPTION

PWROFF 1 control input for entering the Off mode (active LOW) S1 2 capacitor connection for the DC-to-DC converter (between S1 and S2) PGND 3 power ground S3 4 capacitor connection for the DC-to-DC converter (between S3 and S4) V

DDP

5 power supply voltage S4 6 capacitor connection for the DC-to-DC converter (between S3 and S4) S2 7 capacitor connection for the DC-to-DC converter (between S1 and S2) VUP 8 DC-to-DC converter output (must be decoupled with 100 nF to ground) I/O 9 input/output to and from the card reader (C7I); see Fig.7 SGND 10 signal ground CLK 11 clock output to the card reader (C3I) V

12 supply voltage to the card reader (C1I) RST 13 reset output to the card reader (C2I) V

DDS

14 signal supply voltage DEL 15 external capacitor connection for the delay on voltage supervisor PRES 16 card presence indication input (active LOW); note 1 SIMI/O 17 input/output to and from the microcontroller (internal 20 kΩ pull-up resistor connected to V V

DDI

SDA 19 I SCL 20 I SIMERR 21 interrupt output (active LOW; internal 100 kΩ pull-up resistor connected to V SAD0 22 I SAD1 23 I

18 supply voltage for the interface signals with the system

C-bus serial data input/output

C-bus serial clock input

C-bus slave address selection input

DDI

)

SIMCLK 24 external clock input

DDI

)

Note

1. Card presence input with negative current source. To be used with the card reader switch connected to V or V

. The switch is normally closed when the card is not present. If the switch connection is open-circuit or pin 16

DDP

is not connected, then the interface will always detect a present card (see Fig.7).

2000 Apr 20 5

DDS

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

handbook, halfpage

PWROFF

PGND

DDP

S4 S2

VUP

I/O

SGND

CLK

1 2 3 4 5 6

TDA8003TS

7 8

9 10 11 12

MGR435

24 23 22 21 20 19 18 17

16 15 14 13

SIMCLK SAD1 SAD0

SIMERR SCL SDA V

DDI

SIMI/O PRES DEL V

DDS

RST

TDA8003TS

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

Figure 1 shows the block diagram of the TDA8003TS. The functional blocks are described in the following sections. It is assumed that the reader of this specification is aware of GSM11.11 and ISO 7816 terminology.

C-bus control

The I2C-bus interface is used:

• To configure the clock to the card in active mode (1⁄2f

SIMCLK

and1⁄4f

SIMCLK

)

• To configure the clock to the card in power reduction mode (stop LOW, stop HIGH or ±1.25 MHz derived from the internal oscillator)

• To select operation with a 3 or 5 V card

• To start or stop sessions (cold reset)

• To initiate a warm reset

• To enter or leave the Power-down mode

• To request the status (card present or not, hardware

problem occurred, unresponsive card after activation, supplydrop-outdetected by the voltage supervisor, card powered or not)

• To configure SIMI/O and I/O in high-impedance (for use of several TDA8003TS in parallel).

The structure of the I

C-bus data frames is as follows:

• Commands to the TDA8003TS: – START/ADDRESS/WRITE – COMMAND BYTE – STOP. The fixed address is 01001XY. X and Y are defined by

the logic levels on pins SAD1 and SAD0 as shown in Table 1 (connect to ground for logic 0; connect to V for logic 1). The command bits are described in Table 2. The commands are executed on the rising edge of the 9th SCL pulse.

• Status from the TDA8003TS (see Table 4). The fixed address is 01001XY. X and Y are defined by the logic levels on pins SAD1 and SAD0 as shown in Table 1.

Table 1 Address selections

ADDRESS SAD1 SAD0

48H 0 0 4AH 0 1

4CH 1 0

4EH 1 1

DDI

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Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

TDA8003TS

Table 2 Description of the command bits; (all bits are cleared at reset)

SYMBOL BIT DESCRIPTION

START/STOP 0 Logic1 initiates an activation sequence and a cold reset procedure. Logic 0 initiates a

deactivation sequence.

WARM 1 Logic 1 initiates a warm reset procedure. TDA8003TS/C1:warm reset performed only

when the 2 times 45000 CLK pulses have expired without answer from the card. TDA8003TS/C2:warm reset performed whateverthe card has answered or not at the

cold reset procedure but the count is 2 times 44745 CLK pulses.

3 V/5 VN 2 Logic 1 sets the card supply voltage V

to 3 V. Logic 0 sets VCC to 5 V.

PDOWN 3 Logic 1 applies on CLK the frequency deﬁned by bits CLKPD1 and CLKPD2, and

enters a reduced consumption mode. Logic 0 sets the circuit back to normal mode. CLKPD1 4 Bits 4 and 5 determine the clock to the card at power-down as shown in Table 3. CLKPD2 5 DT/DFN 6 Logic 1 sets f

CLK

to1⁄2f

(in active mode). Logic 0 sets f

SIMCLK

CLK

to1⁄4f

SIMCLK

I/OEN 7 Logic 1 will transfer I/O to SIMI/O. Logic 0 sets I/O and SIMI/O to high-impedance.

Table 3 Clock to the card at power-down

BIT 4 BIT 5 FUNCTION

0 0 clock stop LOW 0 1 clock stop HIGH 1 0 clock is

⁄2f

osc

1 1 no change

Table 4 Description of the status bits; note 1

SYMBOL BIT DESCRIPTION

PRES 0 Logic 1 when the card is present. Logic 0 when the card is not present. PRESL 1 Logic 1 when the card has been extracted or inserted. Logic 0 when the status is

read-out.

− 2 Bit 2 is not used and is ﬁxed to logic 0. SUPL 3 Logic 1 when the voltage supervisor has signalled a fault. Logic 0 when the status is

read-out. PROT 4 Logic 1 when an overload has occurred during a session. Logic 0 when the status is

read-out. MUTE 5 TDA8003TS/C1: Logic 1 when a card has not answered after 2 times 45000 CLK

pulses. Logic 0 when the status is read-out.

TDA8003TS/C2: Same as for C1, but the count is 2 times 44745 CLK pulses. EARLY 6 Logic 1 when a card has answered between 200 and 352 CLK cycles. Logic 0 when

the status is read-out. ACTIVE 7 Logic 1 when the card is power-on. Logic 0 when the card is power-off.

Note

1. In case of card extraction, supply drop-out or overload detection within a session, the card will be automatically deactivated, SIMERR pulled LOW, bit START = 0 and the corresponding status bit = 1. The status bit will be logic 0 and SIMERR will be released when the microcontroller reads out the status register, on the 7th SCL pulse. After a supply drop-out, SIMERR will be released at the end of the alarm pulse and bit SUPL = 1.

2000 Apr 20 7

Philips Semiconductors Product speciﬁcation

I2C-bus SIM card interface

Power supply

The circuit operates within a supply voltage range of

2.5 to 6 V. The supply pins are V

and PGND only supply the DC-to-DC converter for

DDP

the analog drivers to the card and must be decoupled externallybecauseofthe large current spikes that the card and the DC-to-DC converter can create. An integrated spike killer ensures the card contacts to remain inactive during power-up or power-down. An internal voltage reference is generated for the DC-to-DC converter, the voltage supervisor and the VCC generator.

All interface signals with the microcontroller (PWROFF, SIMCLK, SAD1, SAD0, SIMERR, SCL, SDA and SIMI/O) are referenced to a separate supply pin V be different from VDD (1.5 ≤ V

DDI

The pull-up resistors on bus lines SDA and SCL may be referenced to a voltage higher than V use of peripherals which do not operate at V

and SGND. Pins

DDS

DDI

≤ 6 V).

. This allows the

DDI

, which may

DDI

TDA8003TS

The voltage supervisor (see Fig.3) senses V generates an alarm pulse, whose length tW is defined by an external capacitor connected to pin DEL, when VDD is too low to ensure proper operation (1 ms per 1 nF typical).

During this alarm pulse, SIMERR is LOW and the I2C-bus is unresponsive. SIMERR goes back to HIGH, and the I2C-bus becomes operational at the end of this alarm pulse. Bit SUPL is set as long as the status has not been read.

It is also used to either block any spurious signals on card contacts during microcontroller reset, or to force an automatic deactivation of the contacts in the event of supply drop-out.

Outside a card session, SIMERR is LOW as long as the voltage supervisor is active. If a supply drop-out occurs during a session, SIMERR falls to LOW, bit START is cleared and an automatic deactivation is initiated.

DDS

. It

handbook, full pagewidth

DDS

DEL

SIMERR

C-bus unresponsive

status read

after event

C-bus OK

C-bus

unresponsive

I2C-bus OK

I2C-bus

unresponsive

MGR436

Fig.3 Voltage supervisor.

2000 Apr 20 8

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