73S8014R-IL/F Maxim Integrated Products, 73S8014R-IL/F Datasheet - Page 19

• Manufacturer Part Number: 73S8014R-IL/F
• Description: IC SMART CARD 7816 EMV 20-SOIC
• Manufacturer: Maxim Integrated Products

Specifications of 73S8014R-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)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Interface: -

3.7 Deactivation Sequence
Deactivation is initiated either by the system controller by setting the CMDVCC high, or automatically in the event of
hardware faults. Hardware faults are over-current, VDD fault, VCC fault, and card extraction during the session.
The following steps show the deactivation sequence and the timing of the card control signals when the system
controller sets the CMDVCC high or OFF goes low due to a fault or card removal:
Rev. 1.0
-
-
-
-
RST goes low at the end of t
CLK is set low at the end of t
I/O goes low at the end of t
VCC is shut down at the end of time t
CMDVCC
CMDVCC
t
t
t
1
2
3
RSTIN
= 0.510 ms (timing by 1.5MHz internal oscillator, I/O goes to reception state)
= RSTIN goes low and CLK becomes active
= > 0.5μs, CLK active, RST to become the copy of RSTIN
VCC
RST
Figure 5: Activation Sequence – RSTIN High When CMDVCC Goes Low
OFF
RST
VCC
CLK
CLK
I/O
I/O
t
t
t
t
t
1
2
3
4
5
= > 0.5μs, timing by 1.5MHz internal Oscillator
= > 7.5μs
= > 0.5μs
= > 0.5μs
= depends on VCC filter capacitor.
-- OR --
3
. Out of reception mode.
1
2
t
.
.
0
Figure 6: Deactivation Sequence
t
1
4
. After a delay t
t
2
t
1
t
3
5
(discharge of the VCC capacitor), VCC is low.
t
4
t
2
t
5
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