TDA8029HL/C206,118 NXP Semiconductors, TDA8029HL/C206,118 Datasheet - Page 43

• Manufacturer Part Number: TDA8029HL/C206,118
• Description: IC SMART CARD READER 32-LQFP
• Manufacturer: NXP Semiconductors

Specifications of TDA8029HL/C206,118

• Controller Type: Smart Card Reader Interface
• Interface: Serial
• Voltage - Supply: 2.7 V ~ 6 V
• Current - Supply: 250mA
• Operating Temperature: -40°C ~ 90°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-3524-2; 935273235118; TDA8029HL06BD-T

Philips Semiconductors
9397 750 14145
Product data sheet
8.15 Power reduction modes
8.16 Activation sequence
On top of the standard controller power reduction features described in the microcontroller
section, the TDA8029 has several power reduction modes that allow its use in portable
equipment, and help protecting the environment:
When in Power-down or Sleep mode, card extraction or insertion, overcurrent on pins
RST or V
The same occurs in case of a falling edge on RX if bit ENRX is set, or on INT1_N if bit
ENINT1 is set and if INT1_N is enabled within the controller.
If only INT1_N should wake up the TDA8029, then INT1_N must be enabled in the
controller, and ENINT1 only should be set.
If RX should wake up the TDA8029, then INT1_N must be enabled in the controller, and
ENRX and ENINT1 should be set.
In case of wake up by RX, then the first received characters may be lost, depending on the
baud rate on the serial link. (The controller waits for 1536 clock cycles before leaving
Power-down mode).
For more details about the use of these modes, please refer to the application notes
“AN00069” and “AN01005” .
When the card is inactive, V
respect to GNDC. The DC-to-DC converter is stopped.
1. Shut-down mode: when SDWN_N pin is LOW, then the bit SDWN within HSR will be
2. Power-down mode: the microcontroller is in Power-down mode, and the card is
3. Sleep mode: the microcontroller is in Power-down mode, the card is activated, but
•
•
•
Current to or from pin CLK limited to 70 mA
ESD protection on all card contacts and pin PRES at minimum 6 kV, thus no need of
extra components for protecting against ESD flash caused by a charged card being
introduced in the slot
Short circuit between any card contacts can have any duration without any damage.
set, causing an interrupt on INT0_N. The TDA8029 will read the status, deactivate the
card if it was active, set all ports to logic 1 and enter Power-down mode by setting bit
PD in the controller’s PCON register. In this mode, it will consume less than 20 A,
because the internal oscillator is stopped, and all biasing currents are cut.
When SDWN_N returns to HIGH, a Power-on reset operation is performed, so the
chip is in the same state than at power-on.
deactivated. The bias currents in the chip and the frequency of the internal oscillator
are reduced. In this mode, the consumption is less than 100 A.
with the clock stopped HIGH or LOW. In this case, the card is supposed not to draw
more than 2 mA from V
oscillator are also reduced. With a current of 100 A drawn by the card, the
consumption is less than 500 A in tripler mode, 400 A in doubler mode, or 300 A
in follower mode.
CC
, or HIGH level on pin RESET will wake up the chip.
Rev. 03 — 22 February 2005
CC
CC
. The bias currents and the frequency of the internal
, CLK, RST and I/O are LOW, with low impedance with
Low power single card reader
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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