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73S8009C 데이터시트 PDF




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부품번호 73S8009C 기능
기능 Versatile Power Management and Smart Card Interface IC
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73S8009C 데이터시트, 핀배열, 회로
www.DataSheet4U.com
73S8009C
Versatile Power Management
and Smart Card Interface IC
Simplifying System Integration™
DS_8009C_025
DESCRIPTION
The Teridian 73S8009C is a versatile power
management and single smart card interface circuit
that is ideally suited for smart card reader products
that are battery and/or USB bus-powered. In
addition to its EMV 4.1 and ISO-7816-3 compliant
smart card-to-host interface circuitry; it provides
control, conversion, and regulation of power for a
companion host processor circuit and power for the
smart card. The 73S8009C can operate from a
single 2.7 V to 6.5 V source supply, or a
combination of battery power (4.0 V to 6.5 V) and
USB power (4.4 V to 5.5 V).
The 73S8009C supports 5 V, 3 V, and 1.8 V smart
cards. The smart card signals for RST, CLK, IO,
and auxiliary signals AUX1 and AUX2 are
level-shifted to the selected VCC value. Although
the host controller is required to handle the
detailed signal timing for activation and de-
activation under normal conditions, the 73S8009C
blocks any spurious signals on CLK, RST and IO
during power-up (as VCC rises) and power-down.
The 73S8009C contains two handshaking signals
for the controller: OFF indicates that a card is
present, and RDY indicates that VCC is at an
acceptable value. The 73S8009C will perform
emergency deactivation upon card removal,
voltage faults, or over-current events
The power management circuitry of the 73S8009C
allows operation from a wide range of voltages
from multiple sources. VPC is converted by using
an inductive, step-up power converter to the
intermediate voltage, VP. VP is used by linear
voltage regulators and switches to create the
voltages VDD and as required, VCC. VDD is used by
the 73S8009C and is also made available for the
companion controller circuit or other external
circuits. The VBAT and VBUS pins provide inputs
from alternate power sources as required. An
internal switch in the 73S8009C acts as a
single-pole, double-throw switch that selects either
VBAT or VBUS to be connected to VPC. When the
voltage on VBUS is zero, VBAT is connected to VPC.
When voltage is applied to VBUS, the switch selects
VBUS as the source for power.
DATA SHEET
February 2010
When power is supplied by VPC or VBAT, the
73S8009C is controlled by the ON_OFF pin in the
manner of a “push-on/push-off” button action. The
OFF_REQ and OFF_ACK signals provide
handshaking and control of the power “off”
function by the controller. A SPST momentary
switch to ground connected to ON_OFF is all that
is required for power control. Alternatively, the
“off” state can be initiated from the host controller
through OFF_ACK. When the 73S8009C is “off,”
the current is less than 1 µA.
When power is supplied via the VBUS pin, the
73S8009C is unconditionally in the “power-on”
state regardless of the action of the ON/OFF
switch or OFF_ACK signal. Power supply current
operating from the VBUS power when VCC is off is
less than 500 µA to conform to USB “SUSPEND”
requirements.
APPLICATIONS
Handheld PINpad smart card readers for
e-commerce, secure login, e-health, Gov’t ID
and loyalty
Point of Sales & Transaction Terminals
General Purpose Smart Card Readers
ADVANTAGES
Ideally suited to USB bus-powered
applications
Ideal for combo bus-powered and/or
self-powered systems
Automatic battery switchover in bus
powered systems
Very low-power mode (sub-µA) with
push-button ON/OFF switch input with
de-bounce
Provides 3.3 V / 40 mA power to external
circuitry (host processor or peripheral circuits)
The inductor-based DC-DC converter provides
higher current and efficiency than usual
charge-pump capacitor-based converters:
Ideal for battery-powered applications
Rev. 1.5
© 2010 Teridian Semiconductor Corporation
1




73S8009C pdf, 반도체, 판매, 대치품
73S8009C Data Sheet
DSw_w8w0.0D9atCaS_he0e2t45U.com
Table of Contents
1 Pinout............................................................................................................................................. 6
2 Electrical Specifications.............................................................................................................. 10
2.1 Absolute Maximum Ratings................................................................................................... 10
2.2 Recommended Operating Conditions.................................................................................... 11
2.3 Smart Card Interface Requirements ...................................................................................... 11
2.4 Digital Signals Characteristics ............................................................................................... 14
2.5 DC Characteristics ................................................................................................................ 15
2.6 Voltage / Temperature Fault Detection Circuits...................................................................... 15
2.7 Thermal Characteristics ........................................................................................................ 15
3 Applications Information............................................................................................................. 16
3.1 Example 73S8009C Schematics ........................................................................................... 16
3.2 Power Supply and Converter................................................................................................. 18
3.3 Interface Function - ON/OFF Modes...................................................................................... 18
3.4 System Controller Interface ................................................................................................... 20
3.5 Card Power Supply and Voltage Supervision......................................................................... 20
3.6 Activation and De-activation Sequence ................................................................................. 21
3.7 OFF and Fault Detection ....................................................................................................... 22
3.8 Chip Selection....................................................................................................................... 23
3.9 I/O Circuitry and Timing......................................................................................................... 24
4 Equivalent Circuits ...................................................................................................................... 26
5 Mechanical Drawing .................................................................................................................... 30
6 Ordering Information................................................................................................................... 31
7 Related Documentation............................................................................................................... 31
8 Contact Information..................................................................................................................... 31
4 Rev. 1.5

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73S8009C 전자부품, 판매, 대치품
DS_8009C_025
73S8009CwwDwa.DtaataSShheeete4Ut .com
Table 1 describes the pin functions for the device.
Table 1: 73S8009C Pin Definitions
Pin
Name
Pin
(QFN32)
Type
Equivalent
Circuit
Description
Card Interface
I/O
AUX1
AUX2
RST
22 IO Figure 16 Card I/O: Data signal to/from card. Includes a pull-up
resistor to VCC.
21 IO Figure 16 AUX1: Auxiliary data signal to/from card. Includes a
pull-up resistor to VCC.
20 IO Figure 16 AUX2: Auxiliary data signal to/from card. Includes a
pull-up resistor to VCC.
18 O Figure 15 Card reset: provides reset (RST) signal to card. RST is
the pass through signal on RSTIN. Internal control logic
will hold RST low when card is not activated or VCC is
too low.
CLK
16 O Figure 14 Card clock: provides clock signal (CLK) to card. CLK is
the pass through of the signal on pin CLKIN. Internal
control logic will hold CLK low when card is not
activated or VCC is too low.
PRES
PRES
14 I Figure 18 Card Presence switch: active high indicates card is
present. Should be tied to GND when not used, but it
Includes a high-impedance pull-down current source.
13 I Figure 18 Card Presence switch: active low indicates card is
present. Should be tied to VDD when not used, but it
Includes a high-impedance pull-up current source.
VCC
19 PSO Figure 13 Card power supply – logically controlled by sequencer,
output of LDO regulator. Requires an external 0.47 µF
low ESR filter capacitor to GND.
GND
17 GND
Miscellaneous Inputs and Outputs
CLKIN
TEST1
7 I Figure 18
10
TEST2
30
Card ground.
Clock signal source for the card clock.
Factory test pin. This pin must be tied to GND in
typical applications.
Factory test pin. This pin must be tied to GND in
typical applications.
Power Supply and Ground
VDD
29 PSO Figure 13 System interface supply voltage and supply voltage for
companion controller circuitry. Requires a minimum of
two 0.1 µF capacitors to ground for proper decoupling.
VPC
26 PSI Figure 13 Power supply source for main voltage converter circuit.
A 10 µF and a 0.1 µF ceramic capacitor must be
connected to this pin.
VBAT
25
Alternate power source input, typically from two series
cells, V > 4 V.
Rev. 1.5
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관련 데이터시트

부품번호상세설명 및 기능제조사
73S8009C

Versatile Power Management and Smart Card Interface IC

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