PHILIPS TDA8005G

INTEGRATED CIRCUITS
DATA SHEET
TDA8005
Low-power smart card coupler
Product specification
Supersedes data of 1995 Apr 13
File under Integrated Circuits, IC17
1996 Sep 25
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
FEATURES
APPLICATIONS
• VCC generation (5 V ±5%, 20 mA maximum with
controlled rise and fall times)
• Portable smart card readers for protocol T = 0
• GSM mobile phones.
• Clock generation (up to 8 MHz), with two times
synchronous frequency doubling
GENERAL DESCRIPTION
• Clock STOP HIGH, clock STOP LOW or 1.25 MHz (from
internal oscillator) for cards power-down mode
The TDA8005 is a low cost card interface for portable
smart card readers. Controlled through a standard serial
interface, it takes care of all ISO 7816 and GSM11-11
requirements. It gives the card and the set a very high level
of security, due to its special hardware against ESD,
short-circuiting, power failure, etc. Its integrated step-up
converter allows operation within a supply voltage range of
2.5 to 6 V.
• Specific UART on I/O for automatic direct/inverse
convention settings and error management at
character level
• Automatic activation and deactivation sequences
through an independent sequencer
• Supports the protocol T = 0 in accordance with
ISO 7816, GSM11.11 requirements (Global System for
Mobile communication); and EMV banking specification
approved for Final GSM11.11 Test Approval (FTA)
The very low-power consumption in Power-down and
sleep modes saves battery power. A special version where
the internal connections to the controller are fed outside
through pins allows easy development and evaluation,
together with a standard 80CL51 microcontroller.
• Several analog options are available for different
applications (doubler or tripler DC/DC converter, card
presence, active HIGH or LOW, threshold voltage
supervisor, etc.
Development tools, application report and support
(hardware and software) are available.
• Overloads and take-off protections
The device can be supplied either as a masked chip with
standard software handling all communication between
smart card and a master controller in order to make the
application easier, or as a maskable device.
• Current limitations in the event of short-circuit
• Special circuitry for killing spikes during power-on or off
• Supply supervisor
• Step-up converter (supply voltage from 2.5 to 6 V)
• Power-down and sleep mode for low-power
consumption
• Enhanced ESD protections on card side
(6 kV minimum)
• Control and communication through a standard RS232
full duplex interface
• Optional additional I/O ports for:
– keyboard
– LEDs
– display
– etc.
• 80CL51 microcontroller core with 4 kbytes ROM and
256-byte RAM.
1996 Sep 25
2
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDD
supply voltage
doubler and tripler option
2.5
−
6.0
V
IDD(pd)
supply current in power-down mode
VDD = 5 V; card inactive
−
−
100
µA
IDD(sm)
supply current in sleep mode doubler card powered but clock
stopped
−
−
500
µA
IDD(sm)
supply current in sleep mode tripler
card powered but clock
stopped
−
−
500
µA
IDD(om)
supply current in operating mode
unloaded; fxtal = 13 MHz;
fµC = 6.5 MHz;
fcard = 3.25 MHz
−
−
5.5
mA
VCC
card supply voltage
including static and
dynamic loads on 100 nF
capacitor
4.75
5.0
5.25
V
ICC
card supply current
operating
−
−
20
mA
limitation
−
−
30
mA
maximum load capacitor
150 nF (including typical
100 nF decoupling)
0.05
0.1
0.15
V/µs
SR
slew rate on VCC (rise and fall)
tde
deactivation cycle duration
−
−
100
µs
tact
activation cycle duration
−
−
100
µs
fxtal
crystal frequency
2
−
16
MHz
Tamb
operating ambient temperature
−25
−
+85
°C
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8005G
LQFP64
plastic low profile quad flat package; 64 leads; body 10 × 10 × 1.4 mm
SOT314-2
TDA8005H
QFP44
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10 × 10 × 1.75 mm
SOT307-2
1996 Sep 25
3
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
BLOCK DIAGRAM
V
DDD
47 nF
handbook, full pagewidth
S1
V
DDA
2.5 to 6 V
100 nF
ALARM
47 nF
100 nF
10
63
S2
64
S3
61
S4
3
62
SUPPLY
44
STEP-UP CONVERTER
ref
INTERNAL
REFERENCE
VUP 60
S5
47 nF
DELAY
RESET
46
VOLTAGE SENSE
2.3 to 2.7 V
INTERNAL OSCILLATOR
2.5 MHz
V
DDD
alarm
22
TDA8005G
VDDD
RxD
TxD
AUX1
AUX2
INT1
P00
to
P37
start
CONTROLLER
CL51
29
59
SECURITY
skill
28
osc ref
VCC
EN1
58
GENERATOR
32
VCC
100 nF
RST
4 kbytes ROM
33
256-byte RAM
30
(1)
EN2
RST
BUFFER
56
SEQUENCER EN3
I/O
BUFFER
55
EN4
CLOCK
BUFFER
57
off
RST
OPTIONAL
PORTS
data clk
EN R/W S0
S1 INT
PERIPHERAL
INTERFACE
µCclk
47
I/O
ISO 7816 UART
OUTPUT PORT
EXTENSION
CLOCK CIRCUITRY
36
osc
35
37
2
53
52
51
50
49
4
MLD210
XTAL1
K0
XTAL2
DGND
K1
K2
K3
AGND
(1) For details see Chapter “Pinning”.
Fig.1 Block diagram (LQFP64; SOT314-2).
1996 Sep 25
LIS
4
K4
K5
I/O
CLK
PRES
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
PINNING
PIN
SYMBOL
DESCRIPTION
LQFP64
SOT314-2
QFP44
SOT307-2
n.c.
1
−
not connected
AGND
2
1
analog ground
S3
3
2
contact 3 for the step-up converter
K5
4
−
output port from port extension
P03
5
3
general purpose I/O port (connected to P03)
P02
6
4
general purpose I/O port (connected to P02)
P01
7
5
general purpose I/O port (connected to P01)
n.c.
8
−
not connected
P00
9
6
general purpose I/O port (connected to P00)
VDDD
10
7
digital supply voltage
n.c.
11
−
not connected
TEST1
12
8
test pin 1 (connected to P10; must be left open-circuit in the application)
P11
13
9
general purpose I/O port or interrupt (connected to P11)
P12
14
10
general purpose I/O port or interrupt (connected to P12)
P13
15
11
general purpose I/O port or interrupt (connected to P13)
P14
16
12
general purpose I/O port or interrupt (connected to P14)
n.c.
17
−
not connected
P15
18
13
general purpose I/O port or interrupt (connected to P15)
P16
19
14
general purpose I/O port or interrupt (connected to P16)
TEST2
20
15
test pin 2 (connected to PSEN; must be left open-circuit in the application)
P17
21
16
general purpose I/O port or interrupt (connected to P17)
RESET
22
17
input for resetting the microcontroller (active HIGH)
n.c.
23
−
not connected
n.c.
24
−
not connected
n.c.
25
−
not connected
n.c.
26
−
not connected
n.c.
27
−
not connected
RxD
28
18
serial interface receive line
TxD
29
19
serial interface transmit line
INT1
30
20
general purpose I/O port or interrupt (connected to P33)
T0
31
21
general purpose I/O port (connected to P34)
AUX1
32
22
push-pull auxiliary output (±5 mA; connected to timer T1 e.g. P35)
AUX2
33
23
push-pull auxiliary output (±5 mA; connected to timer P36)
P37
34
24
general purpose I/O port (connected to P37)
XTAL2
35
25
crystal connection
XTAL1
36
26
crystal connection or external clock input
DGND
37
27
digital ground
n.c.
38
−
not connected
1996 Sep 25
5
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
PIN
SYMBOL
DESCRIPTION
LQFP64
SOT314-2
QFP44
SOT307-2
n.c.
39
−
not connected
P20
40
28
general purpose I/O port (connected to P20)
P21
41
−
general purpose I/O port (connected to P21)
P22
42
29
general purpose I/O port (connected to P22)
P23
43
30
general purpose I/O port (connected to P23)
ALARM
44
−
open-drain output for Power-On Reset (active HIGH or LOW by mask option)
n.c.
45
−
not connected
DELAY
46
31
external capacitor connection for delayed reset signal
PRES
47
32
card presence contact input (active HIGH or LOW by mask option)
TEST3
48
33
test pin 3 (must be left open-circuit in the application)
K4
49
−
output port from port extension
K3
50
−
output port from port extension
K2
51
−
output port from port extension
K1
52
−
output port from port extension
K0
53
−
output port from port extension
TEST4
54
34
test pin 4 (must be left open-circuit in the application)
I/O
55
35
data line to/from the card (ISO C7 contact)
RST
56
36
card reset output (ISO C2 contact)
CLK
57
37
clock output to the card (ISO C3 contact)
VCC
58
38
card supply output voltage (ISO C1 contact)
LIS
59
39
supply for low-impedance on cards contacts
S5
60
40
contact 5 for the step-up converter
S2
61
41
contact 2 for the step-up converter
S4
62
42
contact 4 for the step-up converter
VDDA
63
43
analog supply voltage
S1
64
44
contact 1 for the step-up converter
1996 Sep 25
6
Philips Semiconductors
Product specification
49 K4
50 K3
51 K2
52 K1
53 K0
54 TEST4
55 I/O
56 RST
57 CLK
58 V
CC
TDA8005
59 LIS
60 S5.
61 S2
62 S4
63 V
64 S1
handbook, full pagewidth
DDA
Low-power smart card coupler
n.c.
1
48 TEST3
AGND
2
47 PRES
S3
3
46 DELAY
K5
4
45 n.c.
P03
5
44 ALARM
P02
6
43 P23
P01
7
42 P22
n.c.
8
41 P21
TDA8005G
P12
14
35 XTAL2
P13
15
34 P37
P14
16
33 AUX2
n.c. 24
Fig.2 Pin configuration (LQFP64; SOT314-2).
1996 Sep 25
7
AUX1 32
36 XTAL1
T0 31
13
INT1 30
P11
TxD 29
37 DGND
RxD 28
12
n.c. 27
TEST1
n.c. 26
38 n.c.
n.c. 25
11
n.c. 23
n.c.
RESET 22
39 n.c.
P17 21
10
TEST2 20
V DDD
P16 19
40 P20
P15 18
9
n.c. 17
P00
MLD211
Philips Semiconductors
Product specification
34 TEST4
35 I/O
36 RST
37 CLK
38 V CC
39 LIS
40 S5
TDA8005
41 S2
42 S4
handbook, full pagewidth
43 V DDA
44 S1
Low-power smart card coupler
AGND
1
33 TEST3
S3
2
32 PRES
P03
3
31 DELAY
P02
4
30 P23
P01
5
29 P22
TDA8005H
P00
6
DDD
7
27 DGND
TEST1
8
26 XTAL1
P11
9
25 XTAL2
28 P20
AUX1 22
T0 21
INT1 20
TxD 19
RxD 18
RESET 17
P17 16
23 AUX2
TEST2 15
P13 11
P16 14
24 P37
P15 13
P12 10
P14 12
V
Fig.3 Pin configuration (QFP44; SOT307-2).
1996 Sep 25
8
MLD212
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
FUNCTIONAL DESCRIPTION
Supply
Microcontroller
The circuit operates within a supply voltage range of
2.5 to 6 V. The supply pins are VDDD, DGND and AGND.
Pins VDDA and AGND supply the analog drivers to the card
and have to be externally decoupled because of the large
current spikes that the card and the step-up converter can
create. An integrated spike killer ensures the contacts to
the card remain inactive during power-up or power-down.
An internal voltage reference is generated which is used
within the step-up converter, the voltage supervisor, and
the VCC generator.
The microcontroller is an 80CL51 with 256 bytes of RAM
instead of 128. The baud rate of the UART has been
multiplied by four in modes 1, 2 and 3 (which means that
the division factor of 32 in the formula is replaced by 8 in
both reception and transmission, and that in the reception
modes, only four samples per bit are taken with decision
on the majority of samples 2, 3 and 4) and the delay
counter has been reduced from 1536 to 24.
Remark: this has an impact when getting out of
PDOWN mode. It is recommended to switch to internal
clock before entering PDOWN mode
(see “application report”).
The voltage supervisor generates an alarm pulse, whose
length is defined by an external capacitor tied to the
DELAY pin, when VDDD is too low to ensure proper
operation (1 ms per 1 nF typical). This pulse is used as a
RESET pulse by the controller, in parallel with an external
RESET input, which can be tied to the system controller.
All the other functions remain unchanged. Please, refer to
the published specification of the 80CL51 for any further
information. Pins INT0, P10, P04 to P07 and P24 to P27
are used internally for controlling the smart card interface.
It is also used in order to either block any spurious card
contacts during controllers reset, or to force an automatic
deactivation of the contacts in the event of supply drop-out
[see Sections “Activation sequence” and “Deactivation
sequence (see Fig.10)”].
Mode 0 is unchanged. The baud rate for modes 1 and 3 is:
SMOD
f clk
2
------------------ × -------------------------------------------------8
12 × ( 256 – TH1 )
In the 64 pin version, this reset pulse is output to the open
drain ALARM pin, which may be selected active HIGH or
active LOW by mask option and may be used as a reset
pulse for other devices within the application.
SMOD
2
The baud rate for mode 2 is: ------------------ × f clk
16
Table 1
Mode 3 timing
BAUD
RATE
fclk = 6.5 MHz;
VDD = 5 V
fclk = 3.25 MHz;
VDD = 5 or 3 V
SMOD
TH1
135416
1
255
−
−
67708
0
255
1
255
45139
1
253
−
−
33854
0
254
0
255
27083
1
251
−
−
22569
0
253
1
253
16927
−
−
0
254
13542
−
−
1
251
11285
0
250
0
253
1996 Sep 25
SMOD
TH1
9
Philips Semiconductors
Product specification
Low-power smart card coupler
handbook, full pagewidth
TDA8005
Vth1 + Vhys1
Vth1
V
DD
Vth2
VDEL
ALARM
MBH634
Fig.4 Supply supervisor.
chosen as a doubler or a tripler by mask option, depending
on the voltage and the current needed on the card.
Low impedance supply (pin LIS)
For some applications, it is mandatory that the contacts to
the card (VCC, RST, CLK and I/O) are low impedance while
the card is inactive and also when the coupler is not
powered. An auxiliary supply voltage on pin LIS ensures
this condition where ILIS = <5 µA for VLIS = 5 V. This low
impedance situation is disabled when VCC starts rising
during activation, and re-enabled when the step-up
converter is stopped during deactivation. If this feature is
not required, the LIS pin must be tied to VDD.
ISO 7816 security
The correct sequence during activation and deactivation of
the card is ensured through a specific sequencer, clocked
by a division ratio of the internal oscillator.
Activation (START signal P05) is only possible if the card
is present (PRES HIGH or LOW according to mask
option), and if the supply voltage is correct (ALARM signal
inactive), CLK and RST are controlled by RSTIN (P04),
allowing the correct count of CLK pulses during
Answer-to-Reset from the card.
Step-up converter
Except for the VCC generator, and the other cards contacts
buffers, the whole circuit is powered by VDDD and VDDA.
If the supply voltage is 3 V or 5 V, then a higher voltage is
needed for the ISO contacts supply. When a card session
is requested by the controller, the sequencer first starts the
step-up converter, which is a switched capacitors type,
clocked by an internal oscillator at a frequency
approximately 2.5 MHz. The output voltage, VUP, is
regulated at approximately 6,5 V and then fed to the VCC
generator. VCC and GND are used as a reference for all
other cards contacts. The step-up converter may be
1996 Sep 25
The presence of the card is signalled to the controller by
the OFF signal (P10).
During a session, the sequencer performs an automatic
emergency deactivation in the event of card take-off,
supply voltage drop, or hardware problems. The OFF
signal falls thereby warning the controller.
10
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
active. The card is not active; this is the smallest power
consumption mode. Any change on P1 ports or on PRES
will wake-up the circuit (for example, a key pressed on the
keyboard, the card inserted or taken off).
Clock circuitry
The clock to the microcontroller and the clock to the card
are derived from the main clock signal (XTAL from
2 to 16 MHz, or an external clock signal).
In the sleep mode, the card is powered, but configured in
the Idle or sleep mode. The step-up converter will only be
active when it is necessary to reactivate VUP. When the
microcontroller is in Power-down mode any change on P1
ports or on PRES will wake up the circuit.
Microcontroller clock (fclk) after reset, and during power
reduction modes, the microcontroller is clocked with fINT/8,
which is always present because it is derived from the
internal oscillator and gives the lowest power
consumption. When required, (for card session, serial
communication or anything else) the microcontroller may
choose to clock itself with 1⁄2fxtal, 1⁄4fxtal or 1⁄2fINT.
All frequency changes are synchronous, thereby ensuring
no hang-up due to short spikes etc.
In both power reduction modes the sequencer is active,
allowing automatic emergency deactivation in the event of
card take-off, hardware problems, or supply drop-out.
The TDA8005 is set into Power-down or sleep mode by
software. There are several ways to return to normal
mode, Introduction or extraction of the card, detection of a
change on P1 (which can be a key pressed) or a command
from the system microcontroller. For example, if the
system monitors the clock on XTAL1, it may stop this clock
after setting the device into power-down mode and then
wake it up when sending the clock again. In this situation,
the internal clock should have been chosen before the fclk.
Cards clock: the microcontroller may select to send the
card 1⁄2fxtal, 1⁄4fxtal, 1⁄8fxtal or 1⁄2fINT (≈1.25 MHz), or to stop
the clock HIGH or LOW. All transition are synchronous,
ensuring correct pulse length during start or change in
accordance with ISO 7816.
After power on, CLK is set at STOP LOW, and fclk is set at
1⁄ f
8 INT.
Power-down and sleep modes
Peripheral interface
The TDA8005 offers a large flexibility for defining power
reduction modes by software. Some configurations are
described below.
This block allows synchronous serial communication with
the three peripherals (ISO UART, CLOCK CIRCUITRY
and OUTPUT PORTS EXTENSION).
In the power-down mode, the microcontroller is in
power-down and the supply and the internal oscillator are
handbook, full pagewidth
RESET
P24
DATA
P07
P06
STROBE ENABLE
P27
REG0
P26
REG1
P25
R/W
P32
INT
PERIPHERAL CONTROL
clock configuration
Uart receive
CC0 CC1 CC2 CC3 CC4 CC5 CC6 CC7
UR0 UR1 UR2 UR3 UR4 UR5 UR6 UR7
Uart configuration
Uart status register
UC0 UC1 UC2 UC3 UC4 UC5 UC6 UC7
US0 US1 US2 US3 US4 US5 US6 US7
Uart transmit
UT0 UT1 UT2 UT3 UT4 UT5 UT6 UT7
ports extension
PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7
MBH635
Fig.5 Peripheral interface diagram.
1996 Sep 25
11
Philips Semiconductors
Product specification
Low-power smart card coupler
Table 2
TDA8005
Description of Fig.5
BIT NAME
DESCRIPTION
REG0 = 0, REG1 = 0, R/W = 0; CLOCK CONFIGURATION
(Configuration after reset is cards clock STOP LOW, fclk = 1⁄8fINT)
CC0
cards clock = 1⁄2fxtal
CC1
cards clock = 1⁄4fxtal
CC2
cards clock = 1⁄8fxtal
CC3
cards clock = 1⁄2fINT
CC4
cards clock = STOP HIGH
CC5
fclk = 1⁄2fxtal
CC6
fclk = 1⁄4fxtal
CC7
fclk = 1⁄2fINT
REG0 = 1, REG1 = 0, R/W = 0; UART CONFIGURATION (after reset all bits are cleared)
UC0
ISO UART RESET
UC1
START SESSION
UC2
LCT (Last Character to Transmit)
UC3
TRANSMIT/RECEIVE
UC4 to UC7
not used
REG0 = 0, REG1 = 1, R/W = 0; UART TRANSMIT
UT0 to UT7
LSB to MSB of the character to be transmitted to the card
REG0 = 1, REG1 = 1, R/W = 0; PORTS EXTENSION (after reset all bits are cleared)
PE0 to PE5
PE0 to PE5 is the inverse of the value to be written on K0 to K5
PE6, PE7
not used
REG0 = 0, REG1 = 0, R/W = 1; UART RECEIVE
UR0 to UR7
LSB to MSB of the character received from the card
REG0 = 1, REG1 = 0, R/W = 1; UART STATUS REGISTER (after reset all bits are cleared)
US0
UART TRANSMIT buffer empty
US1
UART RECEIVE buffer full
US2
first start bit detected
US3
parity error detected during reception of a character (the UART has asked the card to repeat the
character)
US4
parity error detected during transmission of a character. The controller must write the previous
character in UART TRANSMIT, or abort the session.
US5 to US7
not used
1996 Sep 25
12
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
Read operation:
USE OF PERIPHERAL INTERFACE
Select the correct register with R/W, REG0 and REG1.
Write operation:
Give a first negative pulse on ENABLE. The word is
parallel loaded in the peripheral shift register on the
rising edge of ENABLE.
Select the correct register with R/W, REG0, REG1.
Write the word in the peripheral shift register (PSR) with
DATA and STROBE. DATA is shifted on the rising edge
of STROBE. 8 shifts are necessary.
Give a second negative pulse on ENABLE for
configuring the PSR in shift right mode.
Give a negative pulse on ENABLE. The data is parallel
loaded in the register on the falling edge of ENABLE.
Table 3
Read the word from PSR with DATA and STROBE.
DATA is shifted on the rising edge of STROBE. 7 shifts
are necessary.
Example of peripheral interface
CHANGE OF CLOCK CONFIGURATION(1)
LOOP
READ CHARACTER ARRIVED IN UART RECEIVE(2)
CLR REG0
CLR REG0
CLR REG1
CLR REG1
CLR R/W
SET R/W
MOV R2, #8
CLR ENABLE
RRC A
SET ENABLE
MOV DATA C
CLR ENABLE
CLR STROBE
SET ENABLE
SET STROBE
MOV R2, #8
DJNZ R2, LOOP
LOOP
MOV C, DATA
CLR ENABLE
RRC A
SET ENABLE
CLR STROBE
SET DATA
SET STROBE
RET
DJNZ R2, LOOP
SET DATA
RET
Notes
1. The new configuration is supposed to be in the accumulator.
2. The character will be in the accumulator.
1996 Sep 25
13
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
The ISO UART configuration register enables the
microcontroller to configure the ISO UART. cf Peripheral
Interface.
ISO UART
The ISO UART handles all the specific requirements
defined in ISO T = 0 protocol type. It is clocked with the
cards clock, which gives the fclk/31 sampling rate for start
bit detection (the start bit is detected at the first LOW level
on I/O) and the fclk/372 frequency for ETU timing (in the
reception mode the bit is sampled at 1⁄2ETU). It also allows
the cards clock frequency changes without interfering with
the baud rate.
After power-on, all ISO UART registers are reset.
The ISO UART is configured in the reception mode. When
the microcontroller wants to start a session, it sets the bits
START SESSION and RESET ISO UART in UART
CONFIGURATION and then sets START LOW. When the
first start bit on I/O is detected (sampling rate fclk/31), the
UART sets the bit US2 (First Start Detect) in the status
register which gives an interrupt on INT0 one CLK pulse
later.
This hardware UART allows operating of the
microcontroller at low frequency, thus lowering EM
radiations and power consumption. It also frees the
microcontroller of fastidious conversions and real time jobs
thereby allowing the control of higher level tasks.
The convention is recognized on the first character of the
ATR and the UART configures itself in order to exchange
direct data without parity processing with the
microcontroller whatever the convention of the card is.
The bit START SESSION must be reset by software. At
the end of every character, the UART tests the parity and
resets what is necessary for receiving another character.
The following occurs in the reception mode (see Fig.6):
• Detection of the inverse or direct convention at the begin
of ATR.
• Automatic convention setting, so the microcontroller
only receives characters in direct convention.
If no parity error is detected, the UART sets the bit US1
(BUFFER FULL) in the STATUS REGISTER which warns
the microcontroller it has to read the character before the
reception of the next one has been completed. The
STATUS REGISTER is reset when read from the
controller.
• Parity checking and automatic request for character
repetition in case of error (reception is possible at
12 ETU).
In the transmission mode (see Fig.7):
• Transmission according to the convention detected
during ATR, consequently the microcontroller only has
to send characters in direct convention. Transmission of
the next character may start at 12 ETU in the event of no
error or 13 ETU in case of error.
If a parity error has been detected, the UART pulls the I/O
line LOW between 10.5 and 12 ETU. It also sets the bits
BUFFER FULL and US3 (parity error during reception) in
the STATUS REGISTER which warns the microcontroller
that an error has occurred. The card is supposed to repeat
the previous character.
• Parity calculation and detection of repetition request
from the card in the event of error.
• The bit LCT (Last Character to Transmit) allows fast
reconfiguration for receiving the answer 12 ETU after
the start bit of the last transmitted character.
The ISO UART status register can inform which event has
caused an interrupt. (Buffer full, buffer empty, parity error
detected etc.) cf Peripheral Interface.
This register is reset when the microcontroller reads the
status out of it.
1996 Sep 25
14
Philips Semiconductors
Product specification
Low-power smart card coupler
handbook, full pagewidth
T/R = 0
or
LCT = 1
TDA8005
start session ↑ and T/R = 0
SET ENABLE FSD
clock starts
INHIBIT I/O DURING 200 CLK
SAMPLE I/O EVERY 31 CLK
I/O = 0
SET FSD STATUS REGISTER
IN FSD IS ENABLED
RESET EN FSD
5th bit
SAMPLE I/O AT 186
AND EVERY 372 CLK
SET CONVENTION
IF START SESSION = 1
(1)
10th bit
CONVERT AND LOAD CHARACTER
IN RECEPTION BUFFER AT 10 ETU
parity error
CHECK PARITY
SET BIT RECEPTION PARITY
ERROR AT 10 ETU
DISABLE I/O BUFFER BETWEEN
10 AND 12 ETU
PULL I/O LINE LOW FROM
10.5 TILL 11.75 ETU
SET BIT BUFFER FULL AT 10 ETU
RESET RECEPTION PART AT 12 ETU
(2)
MBH636
T/R =1
(1) The start session is reset by software.
(2) The software may load the received character in the peripheral
control at any time without any action on the ISO UART.
Fig.6 ISO UART reception flow chart.
When the controller needs to transmit data to the card, it
first sets the bit UC3 in the UART CONFIGURATION
which configures the UART in the transmission mode.
As soon as a character has been written in the UART
TRANSMIT register, the UART makes the conversion,
1996 Sep 25
calculates the parity and starts the transmission on the
rising edge of ENABLE. When the character has been
transmitted, it surveys the I/O line at 11 ETU in order to
know if an error has been detected by the card.
15
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
If no error has occurred, the UART sets the bit US0
(BUFFER EMPTY) in the STATUS REGISTER and waits
for the next character. If the next character has been
written before 12 ETU, the transmission will start at
12 ETU. If it was written after 12 ETU it will start on the
rising edge of ENABLE.
13 ETU. If it has been written after 13 ETU it will start on
the rising edge of ENABLE.
When the transmission is completed, the microcontroller
may set the bit LCT (Last Character to Transmit) so that
the UART will force the reception mode into ready to get
the reply from the card at 12 ETU. This bit must be reset
before the end of the first reception. The bit T/R must be
reset to enable the reception of the following characters.
If an error has occurred, it sets the bits BUFFER EMPTY
and US4 (parity error during transmission) which warns
the microcontroller to rewrite the previous character in the
UART TRANSMIT register. If the character has been
rewritten before 13 ETU, the transmission will start at
When the session is completed, the microcontroller
re-initializes the whole UART by resetting the bit RESET
ISO UART.
T/R ↑
handbook, full pagewidth
SET TRANSMIT ENABLE
transmit register selected
CONVERT, CALCULATE PARITY
AND LOAD IN TRANSMIT
SHIFT REGISTER
(1)
SHIFT EVERY ETU IF TRANSMIT
ENABLE IS SET
10th bit shifted
SET I/O BUFFER IN
RECEPTION AT 10 ETU
parity error
SAMPLE I/O AT 11 ETU
SET BIT BUFFER EMPTY
AT 11 ETU
SET BIT TRANSMISSION PARITY
ERROR AND BUFFER EMPTY
AT 11 ETU
(2)
LCT = 1
RESET TRANSMIT PART AT 11 ETU
FORCE RECEPTION MODE
RESET TRANSMIT PART AND
ENABLE TRANSMIT AT 12 ETU
T/R = 0
(1) The transmit register may be loaded just after reading from the status register.
(2) The software must reset the last character but before completion of the first received character.
Fig.7 ISO UART transmission flow chart.
1996 Sep 25
16
RESET TRANSMIT PART AND
ENABLE TRANSMIT AT 13 ETU
MBH637
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
In order to allow a precise count of clock pulses during
ATR, a defined time window (t3; t5) is opened where the
clock may be sent to the card by means of RSTIN. Beyond
this window, RSTIN has no more action on clock, and only
monitors the cards RST contact (RST is the inverse of
RSTIN).
I/O buffer modes (see Fig.8)
The following are the I/O buffer modes:
1. I/O buffer disabled by ENIO.
2. I/O buffer in input, 20 kΩ pull-up resister connected
between I/O and VCC, I/O masked till 200 clock pulses.
3. I/O buffer in input, 20 kΩ pull-up resister connected
between I/O and VCC, I/O is sampled every 31 clock
pulses.
The sequencer is clocked by fINT/64 which leads to a time
interval T of 25 µs typical. Thus t1 = 0 to 1⁄64T,
t2 = t1 + 1⁄23T, t3 = t1 + 4T, t4 = t3 to t5 and t5 = t1 + 7T
(see Fig.9).
4. I/O buffer in output, 20 kΩ pull-up resister connected
between I/O and VCC.
Deactivation sequence (see Fig.10)
5. I/O buffer in output, I/O is pulled LOW by the N
transistor of the buffer.
When the session is completed, the microcontroller sets
START HIGH. The circuit then executes an automatic
deactivation sequence:
6. I/O buffer in output, I/O is strongly HIGH or LOW by the
P or N transistor.
• Card reset (RST falls LOW) at t10
Output ports extension
• Clock is stopped at t11
In the LQFP64 version, 6 auxiliary output ports may be
used for low frequency tasks (for example, keyboard
scanning). These ports are push-pull output types (cf use
in software document).
• I/O becomes high impedance to the ISO UART (t12)
• VCC falls to 0 V with typical 0.1 V/µs slew rate (t13)
• The step-up converter is stopped and CLK, RST, VCC
and I/O become low impedance to GND (t14).
• t10 < 1⁄64T; t11 = t10 + 1⁄2T; t12 = t10 + T; t13 = t10 + 1⁄23T;
t14 = t10 + 5T.
Activation sequence
When the card is inactive, VCC, CLK, RST and I/O are
LOW, with low impedance with respect to GND. The
step-up converter is stopped. The I/O is configured in the
reception mode with a high impedance path to the ISO
UART, subsequently no spurious pulse from the card
during power-up will be taken into account until I/O is
enabled. When everything is satisfactory (voltage supply,
card present, no hardware problems), the microcontroller
may initiate an activation sequence by setting START
LOW (t0):
Protections
Main hardware fault conditions are monitored by the circuit
• Overcurrent on VCC
• Short circuits between VCC and other contacts
• Card take-off during transaction.
When one of these problems is detected, the security logic
block pulls the interrupt line OFF LOW, in order to warn the
microcontroller, and initiates an automatic deactivation of
the contacts. When the deactivation has been completed,
the OFF line returns HIGH, except if the problem was due
to a card extraction in which case it remains LOW till a card
is inserted.
• The step-up converter is started (t1)
• LIS signal is disabled by ENLI, and VCC starts rising from
0 to 5 V with a controlled rise time of 0.1 V/µs typically
(t2)
• I/O buffer is enabled (t3)
• Clock is sent to the card (t4)
• RST buffer is enabled (t5).
1996 Sep 25
17
Philips Semiconductors
Product specification
Low-power smart card coupler
handbook, full pagewidth
activation
character
reception
with error
TDA8005
character
transmission
with error
character
reception
without
error
character
transmission
without
error
forced
deactivation
character
reception
without
error
I/O
OUT
I/O BUFFER
IN
T
ISO UART
MODE
R
1
2
3
4 54
3
4
1
6
3
6
3
3
4
3
1
MBH638
Fig.8 I/O buffer modes.
tact
handbook, full pagewidth
PRES
OFF
START
fINT/64
VUP
VCC
I/O
ENRST
internal
RSTIN
CLK
RST
ENLI
internal
MBH639
t3
t5
Fig.9 Activation sequence.
1996 Sep 25
18
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
handbook, full pagewidth
PRES
OFF
START
fINT/64
RST
CLK
I/O
VCC
VUP
ENLI
t10
internal
t11
t12
t13
t14
tde
Fig.10 Emergency deactivation sequence after a card take-off.
1996 Sep 25
19
MBH640
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VDDA
analog supply voltage
−0
6.5
V
VDDD
digital supply voltage
−0
6.5
V
Vn
all input voltages
−0
VDD + 0.5 V
In1
DC current into XTAL1, XTAL2, RX, TX,
RESET, INT1, P34, P37, P00 to P03,
P11 to P17, P20 to P23 and
TEST1 to TEST4
−
5
mA
In2
DC current from or to AUX1, AUX2
−10
+10
mA
In3
DC current from or to S1 to S5
−30
+30
mA
In4
DC current into DELAY
−5
+10
mA
In5
DC current from or to PRES
−5
+5
mA
In6
DC current from and to K0 to K5
−5
+5
mA
In7
DC current from or into ALARM
(according to option choice)
−5
+5
mA
Ptot
continuous total power dissipation
−
500
mW
Tstg
IC storage temperature
−55
+150
oC
Ves
electrostatic discharge
on pins I/O, VCC,
RST, CLK and PRES
−6
+6
kV
on other pins
−2
+2
kV
−
−
125
°C
Tj
Operating Junction Temp.
Tamb = −20 to +85°C
HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.
THERMAL CHARACTERISTICS
SYMBOL
Rth j-a
1996 Sep 25
PARAMETER
VALUE
UNIT
LQFP64
70
K/W
QFP44
60
K/W
from junction to ambient in free air
20
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
CHARACTERISTICS
VDD = 5 V; VSS = 0 V; Tamb = 25 °C; for general purpose I/O ports see 80CL51 data sheet; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply
VDD
supply voltage
Option dependant
2.5
−
6.0
V
IDD(pd)
supply current power-down
mode
VDD = 5 V; card inactive
VDD = 3V; “
“
−
90
−
µA
IDD(sm)
supply current sleep mode
card powered, but with clock
stopped
−
500
−
µA
IDD(om)
supply current operating mode unloaded; fxtal = 13 MHz;
fclk = 6.5 MHz; fcard = 3.25 MHz
−
5.5
−
mA
−
3
−
mA
VDD = 3 V; fxtal = 13 MHz;
fclk = 3.25 MHz; fcard = 3.25 MHz
Vth1
threshold voltage on VDD
(falling)
supervisor option
2
−
2.3
V
2.45
−
3
V
3.8
−
4.5
V
mV
Vhys1
hysteresis on Vth1
40
−
350
Vth2
threshold voltage on DELAY
−
1.38
−
V
VDEL
voltage on pin DELAY
4.6
−
VDD
V
IDEL
output current at DELAY
−1.5
−1
−0.4
µA
tW
ALARM pulse width
pin grounded (charge)
VDEL = VDD (discharge)
4
6.8
10
mA
CDEL = 10 nF
−
10
−
ms
ALARM (open drain active HIGH or LOW output)
IOH
HIGH level output current
active LOW option; VOH = 5 V
−
−
10
µA
VOL
LOW level output voltage
active LOW option; IOL = 2 mA
−
−
0.4
V
IOL
LOW level output current
active HIGH option, VOL = 0 V
−
−
−10
µA
VOH
HIGH level output voltage
active HIGH option, IOH = −2 mA
VDD − 1
−
−
V
Crystal oscillator (note 1)
fxtal
crystal frequency
2
−
16
MHz
fEXT
external frequency applied on
XTAL1
0
−
16
MHz
Step-up converter
fINT
oscillation frequency
2
−
3
MHz
VUP
voltage on S5
−
6.5
−
V
Low impedance supply (LIS)
VLIS
voltage on LIS
0
−
VDD
V
ILIS
current at LIS
−
−
7
µA
1996 Sep 25
21
Philips Semiconductors
Product specification
Low-power smart card coupler
SYMBOL
PARAMETER
TDA8005
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reset output to the card (RST)
Vinactive
output voltage
Iinactive
current from RST when
inactive and pin grounded
when inactive
−0.3
−
0.4
V
when LIS is used; Iinactive = 1 mA
−0.3
−
0.4
V
−
−
−1
mA
V
VOL
LOW level output voltage
IOL = 200 µA
−0.25
−
0.4
VOH
HIGH level output voltage
IOH <−200 µA
4
−
VCC + 0.3 V
tr
rise time
CL = 30 pF
−
−
1
µs
tf
fall time
CL = 30 pF
−
−
1
µs
when inactive
−0.3
−
0.4
V
when LIS is used; Iinactive = 1 mA
−0.3
−
0.4
V
−
−
−1
mA
IOL = 200 µA
−0.25
−
0.4
V
Clock output to the card (CLK)
Vinactive
output voltage
Iinactive
current from CLK when
inactive and pin grounded
VOL
LOW level output voltage
VOH
HIGH level output voltage
IOH <−200 µA
VCC−0.5
−
VCC+0.25 V
tr
rise time
CL = 30 pF
−
−
15
ns
tf
fall time
CL = 30 pF
−
−
15
ns
fclk
clock frequency
1 MHz Idle configuration
1
−
1.5
MHz
low operating speed
−
−
2
MHz
middle operating speed
−
−
4
MHz
high operating speed
−
−
8
MHz
CL = 30 pF
45
−
55
%
when inactive
−0.3
−
0.4
V
when LIS is used; Iinactive = 1 mA
−0.3
−
0.4
V
−
−
−1
mA
Imax = 200 mA, fmax = 5 MHz, and −
duration <400 ns
−
−
V
δ
duty cycle
Card supply voltage (VCC)
Vinactive
output voltage
Iinactive
current from VCC when
inactive and pin grounded
Vcc
output voltage in active mode
with 100 nF capacitor;
static load (up to 20 mA)
dynamic current of 40 nA
ICC
SR
output current
slew rate
1996 Sep 25
4.75
4.5
5.25
5.5
VCC = 5V
−
−
−20
mA
VCC shorted to GND
−
−
−40
mA
up or down
(max capacitance is 150 nF)
0.04
0.1
0.16
V/µs
22
Philips Semiconductors
Product specification
Low-power smart card coupler
SYMBOL
PARAMETER
TDA8005
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Data line (I/O)
Vinactive
output voltage
when inactive
−0.3
−
0.4
V
when LIS is used; Iinactive = 1 mA
−0.3
−
0.4
V
−
−
−1
mA
−0.25
−
0.3
V
Iinactive
current from I/O when inactive
and pin grounded
VOL
LOW level output voltage (I/O
configured as an output)
VOH
HIGH level output voltage (I/O IOH <−100 µA
configured as an output)
VCC+0.8
−
VCC+0.25 V
VIL
input voltage LOW (I/O
configured as an input)
IIL = 1 mA
0
−
0.5
V
VIH
input voltage HIGH (I/O
configured as an input)
IIL = 100 µA
VCC+0.6
−
VCC
V
tr
rise time
CL = 30 pF
−
−
1
µs
tf
fall time
CL = 30 pF
−
−
1
µs
Rpu
pull-up resistor connected to
VCC when I/O is input
see Table 4 for options
−
−
−
shutdown current at VCC
−
−30
−
mA
tact
activation sequence duration
−
−
225
µs
tde
deactivation sequence
duration
−
−
150
µs
t3(start)
start of the window for sending
clock to the card
−
−
130
µs
t5(end)
end of the window for sending
clock to the card
140
−
−
µs
IOL = 1 mA
Protections
ICC(sd)
Timing
Auxiliary outputs (AUX1, AUX2)
VOL
LOW level output voltage
IOL = 5 mA
−
−
0.4
V
VOH
HIGH level output voltage
IOH = −5 mA
VDD − 1
−
−
V
Output ports from extension (K0 to Kn)
VOL
LOW level output voltage
IOL = 2 mA
−
−
0.4
V
VOH
HIGH level output voltage
IOH = −2 mA
VDD − 1
−
−
V
Card presence input (PRES)
VIL
LOW level input voltage
IIL = −1 mA
−
−
0.6
V
VIH
HIGH level input voltage
IIH = 100 µA
0.7VDD
−
−
V
IIH
HIGH level input current
VIH=+5V
0.2
−
3
µA
Note
1. The crystal oscillator is the same as OPTION 3 of the 80CL51.
1996 Sep 25
23
100 nF
5 V(analog)
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
100 nF
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
from
system
controller
RESET
24
RX
TX
TDA8005G
4.7
nF
LED2
100
nF
47 nF
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
MMI-EN
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
NC8
NC7
NC6
NC5
C1
C2
C3
C4
NC1
NC2
NC3
NC4
C5
C6
C7
C8
Philips Semiconductors
5V
(analog)
Low-power smart card coupler
APPLICATION INFORMATION
1996 Sep 25
KEYBOARD
CARD-READ-C702
K1
K2
5 V(logic)
MGC440
100
kΩ
R7
1.5 Ω
1.5 Ω
LED1
R8
Product specification
Fig.11 Possible GSM application.
TDA8005
MMI-CLK
MMI-REQ
LIS
4.7
nF
handbook, full pagewidth
5 V(logic)
VDD
47 nF
100 nF
3V
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
100 nF
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
TDA8005G
47
nF
100
nF
47 nF
C8
C7
C6
C5
NC1
NC2
NC3
NC4
C4
C3
C2
C1
NC5
NC6
NC7
NC8
CARD-READ-LM01
K1
K2
MGC439
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
25
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Philips Semiconductors
Low-power smart card coupler
ndbook, full pagewidth
1996 Sep 25
KEYBOARD
VDD
LED1
4.7
nF
R6
LED2
33
pF
R7
R/W E
33
pF
D7 D6 D5 D4
D3 D2 D1 D8
Fig.12 Possible stand-alone application.
TDA8005
DISPLAY DRIVER
AND DISPLAY
Product specification
AS
7.15
MHz
Philips Semiconductors
Product specification
Low-power smart card coupler
Table 4
TDA8005
TDA8005 option choice form
FUNCTION
DESCRIPTION
OPTION
FUNCTION
DESCRIPTION
Ports
Analog options
P00
Step-up
doubler (updo) or tripler
(uptri)
Supervisor
2.3 (supervb, 3 (supervtr) or
4.5 (superVCI)
I/O
low impedance (UARTl) or
high impedance (UARTZ)
I/O pull-up
10, 20 or 30 kΩ
R_CLK
0, 50, 100, 150 or 200 Ω
R_RST
0, 50, 80, 130 or 180 Ω
ALARM
active HIGH (alarmbufp) or
active LOW (alarmbufn)
PRES
active HIGH (prestopp) or
active LOW (prestopn)
P01
P02
P03
P04
RSTIN (fixed)
3S
P05
START (fixed)
3S
P06
STR (fixed)
3S
P07
EN (fixed)
3S
P10
OFF (fixed)
2S
P11
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
P24
DATA (fixed)
1S
P25
R/W (fixed)
3S
P26
REG1 (fixed)
3S
P27
REG0 (fixed)
3S
INT (fixed)
1S
P35
AUXI (fixed)
3S
P36
AUX2 (fixed)
3S
P30
P31
P32
P33
P34
P37
1996 Sep 25
26
OPTION
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
PACKAGE OUTLINES
LQFP64: plastic low profile quad flat package; 64 leads; body 10 x 10 x 1.4 mm
SOT314-2
c
y
X
A
48
33
49
32
ZE
e
E HE
A
A2
(A 3)
A1
wM
θ
bp
pin 1 index
64
Lp
L
17
detail X
16
1
ZD
e
v M A
wM
bp
D
B
HD
v M B
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
mm
1.60
0.20
0.05
1.45
1.35
0.25
0.27
0.17
0.18
0.12
10.1
9.9
10.1
9.9
0.5
HD
HE
12.15 12.15
11.85 11.85
L
Lp
v
w
y
1.0
0.75
0.45
0.2
0.12
0.1
Z D (1) Z E (1)
θ
1.45
1.05
7
0o
1.45
1.05
o
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
95-12-19
97-08-01
SOT314-2
1996 Sep 25
EUROPEAN
PROJECTION
27
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm
SOT307-2
c
y
X
A
33
23
34
22
ZE
e
E HE
A A2
wM
(A 3)
A1
θ
bp
Lp
pin 1 index
L
12
44
1
detail X
11
wM
bp
e
ZD
v M A
D
B
HD
v M B
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HD
HE
L
Lp
v
w
y
mm
2.10
0.25
0.05
1.85
1.65
0.25
0.40
0.20
0.25
0.14
10.1
9.9
10.1
9.9
0.8
12.9
12.3
12.9
12.3
1.3
0.95
0.55
0.15
0.15
0.1
Z D (1) Z E (1)
1.2
0.8
1.2
0.8
θ
o
10
0o
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
95-02-04
97-08-01
SOT307-2
1996 Sep 25
EUROPEAN
PROJECTION
28
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
SOLDERING
Wave soldering
Introduction
Wave soldering is not recommended for LQFP or QFP
packages. This is because of the likelihood of solder
bridging due to closely-spaced leads and the possibility of
incomplete solder penetration in multi-lead devices.
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
If wave soldering cannot be avoided, the following
conditions must be observed:
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
• The footprint must be at an angle of 45° to the board
direction and must incorporate solder thieves
downstream and at the side corners.
Reflow soldering
Even with these conditions:
Reflow soldering techniques are suitable for all LQFP and
QFP packages.
• Do not consider wave soldering LQFP packages
LQFP48 (SOT313-2), LQFP64 (SOT314-2) or
LQFP80 (SOT315-1).
The choice of heating method may be influenced by larger
plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our “Quality
Reference Handbook” (order code 9397 750 00192).
• Do not consider wave soldering QFP packages
QFP52 (SOT379-1), QFP100 (SOT317-1),
QFP100 (SOT317-2), QFP100 (SOT382-1) or
QFP160 (SOT322-1).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
1996 Sep 25
Repairing soldered joints
Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
29
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1996 Sep 25
30
Philips Semiconductors
Product specification
Low-power smart card coupler
TDA8005
NOTES
1996 Sep 25
31
Philips Semiconductors – a worldwide company
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Tel. +9-5 800 234 7381
Middle East: see Italy
Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,
Tel. +31 40 27 82785, Fax. +31 40 27 88399
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,
Tel. +64 9 849 4160, Fax. +64 9 849 7811
Norway: Box 1, Manglerud 0612, OSLO,
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Philippines: Philips Semiconductors Philippines Inc.,
106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
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Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,
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Portugal: see Spain
Romania: see Italy
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,
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Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,
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Slovakia: see Austria
Slovenia: see Italy
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,
2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
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Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461
United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. +1 800 234 7381
Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 825 344, Fax.+381 11 635 777
For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
Internet: http://www.semiconductors.philips.com
© Philips Electronics N.V. 1996
SCA51
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
647021/1200/02/pp32
Date of release: 1996 Sep 25
Document order number:
9397 750 01154