73S8009R-IL/F Maxim Integrated Products, 73S8009R-IL/F Datasheet - Page 15

• Manufacturer Part Number: 73S8009R-IL/F
• Description: IC SMART CARD LEVEL SHIFT 28SOIC
• Manufacturer: Maxim Integrated Products
• Type: Low Cost Versatile Smart Card Interfacer

Specifications of 73S8009R-IL/F

• Applications: Smart Card Reader, Writer
• Voltage - Supply: 2.7 V ~ 3.6 V
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS_8009R_056
Choice of the V
Depending on the application, the requirements in terms of both the V
transient currents that the interface must be able to provide to the card are different. An external
capacitor must be connected between the VCC pin and the card ground in order to guarantee stability of
the LDO regulator, and to handle the transient requirements. The type and value of this capacitor can be
optimized to meet the desired specification.
power supply configuration and applicable specification.
3.5
A built-in detector monitors die temperature. When an over-temperature condition occurs, a card
deactivation sequence is initiated, and an error or fault condition is reported to the system controller via
the OFF interrupt.
3.6
The host controller is fully responsible for the activation sequencing of the smart card signals CLK, RST,
I/O, AUX1 and AUX2. All of these signals are held low when the card is in the deactivated state. Upon
card activation (the fall of CMDVCC#/CMDVCC%, all the signals will remain low until RDY goes high. The
host should set the signals RSTIN, I/OUC, CLKIN, AUX1UC and AUX2UC low prior to activating the card
and allow RDY to go high before transitioning any of these signals. In order to initiate activation, the card
must be present and there can be no over-temperature fault and no V
Rev. 1.3
Specification
ISO-7816-3 &
GSM11.11
EMV 4.1
Over-temperature Monitor
Activation and Deactivation Sequence
CMDVCC3 or CMDVCC5
RSTIN
CLKIN
Specification Requirements
IOUC
VCC
RDY
CLK
RST
IO
CC
transient current
Min V
capacitor:
allowed during
IO, AUX1, AUX2, CLK, RST are held LOW until RDY = 1 and CMDVCCx = 0
4.6 V
4.5 V
CC
Voltage
At t1 (500 µs), if RDY = 0 or overcurrent, circuit will de-activate (safety feature)
Ignored
Ignored
Ignored
Table 8: Choice of VCC Pin Capacitor
Figure 5: Activation Sequence
Current Charge
Max Transient
30 nAs
20 nAs
Table 8
t1
VCC valid
shows the recommended capacitors for each V
Supply required
Min V
4.75 V
4.75 V
PC
Power
IO = IOUC if RDY=1
System Requirements
CC
DD
minimum voltage and the
fault.
RST=RSTIN if RDY=1
ESR<100 mΩ
CLK=CLKIN if RDY=1
Capacitor
X5R/X7R
Type
with
73S8009R Data Sheet
Capacitor
3.3 µF
Value
1 µF
PC
15