73S8014RN Maxim, 73S8014RN Datasheet - Page 17

• Manufacturer Part Number: 73S8014RN
• Description: The 73S8014R/RN devices are single smart card (ICC) interface circuits, firmware compatible with 8024-type devices for configurations where only asynchronous cards are to be supported, and are derived from the 73S8024RN industry standard electrical i
• Manufacturer: Maxim

The following steps show the activation sequence and the timing of the card control signals when the system
controller pulls the CMDVCC low while the RSTIN is high:
Rev. 1.0
-
-
-
-
CMDVCC is set low at t
V
the end of t
at t
At the fall of RSTIN at t
RST is a copy of RSTIN after t
CC
1
, the OFF goes low to report a fault to the system controller, and V
will rise to the selected level and then the internal V
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
CLK
1
I/O
. In normal operation, the voltage V
2
0
, CLK is applied to the card
.
t
0
2
.
t
1
CC
to the card becomes valid before t
CC
control circuit checks the presence of V
t
2
CC
to the card is shut off.
1
. If V
CC
is not valid
CC
at
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