73S8014RN-IL/F Maxim Integrated Products, 73S8014RN-IL/F Datasheet - Page 6

• Manufacturer Part Number: 73S8014RN-IL/F
• Description: IC SMART CARD 7816 EMV 20-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of 73S8014RN-IL/F

• Controller Type: Smart Card Interface
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (0.300", 7.50mm Width) Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Card Interface
I/O
RST
CLK
PRES
VCC
GND
Host Processor Interface
CMDVCC
5V/#V
CLKDIV1
CLKDIV2
OFF
RSTIN
I/OUC
Table 1 provides the 73S8014RN pin names, pin numbers, type, equivalent circuits and descriptions.
6
Pin Name
Pin
Number Type
19
14
15
17
18
16
20
6
7
5
1
2
3
GND
PSO
IO
IO
O
O
O
I
I
I
I
I
Table 1: 73S8014RN 20-Pin SOP Pin Definitions
Equivalent
Figure 14
Figure 13
Figure 12
Figure 16
Figure 11
Figure 16
Figure 16
Figure 16
Figure 10
Figure 16
Figure 15
Circuit
–
Card I/O: Data signal to/from card. Includes an 11K pull-up
resistor to V
Card reset: provides reset (RST) signal to card.
Card clock: provides clock signal (CLK) to card. The rate of this
clock is determined by the external crystal frequency or
frequency of the external clock signal applied on XTALIN and
CLKDIV selections.
Card Presence switch: active high indicates card is present.
Includes a high-impedance pull-down current source.
Card power supply – logically controlled by sequencer, output of
LDO regulator. Requires an external filter capacitor to the card
GND.
Card ground.
Command VCC (negative assertion): Logic low on this pin
causes the LDO regulator to ramp the V
and initiates a card activation sequence, if a card is present.
5 volt / 3 volt card selection: Logic high selects 5 volts for V
and card interface, logic low selects 3 volt operation. When the
part is to be used with a single card voltage, this pin should be
tied to either GND or V
impedance pull-up resistor to default this pin high (selection of
5V card) when not connected. This pin shall not be changed
when CMDVCC is low.
Sets the divide ratio from the XTAL oscillator (or external clock
input) to the card clock. These pins include a pull-up resistor for
CLKDIV1 and CLKLDIV2 to provide a default rate of divide by
two.
Interrupt signal to the processor. Active Low - Multi-function
indicating fault conditions and card presence. Open drain output
configuration – It includes an internal 20kΩ pull-up to V
Reset Input: This signal is the reset command to the card.
System controller data I/O to/from the card. Includes an 11K
pull-up resistor to V
CLKDIV1
0
0
1
1
CC.
DD.
DD
. However, it includes a high
Description
CLKDIV2
0
1
1
0
CC
supply to the card
CLOCK RATE
XTALIN/6
XTALIN/4
XTALIN/2
XTALIN
DD.
Rev. 1.0
CC