NCN8024DWR2G ON Semiconductor, NCN8024DWR2G Datasheet - Page 12

• Manufacturer Part Number: NCN8024DWR2G
• Description: IC SMART CARD IC2 8SOIC
• Manufacturer: ON Semiconductor

Specifications of NCN8024DWR2G

• Applications: Smart Card Reader, Writer
• Voltage - Supply: 5V
• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -

mode allowing controlling the clock starting by setting
RSTIN Low (Figure 4). Before running the activation
sequence, that is before setting Low CMDVCC RSTIN is set
High. In these initial conditions CRD_CLK starts when
RSTIN is pulled Low. This allows a precise count of clock
pulses before toggling CRD_RST High for ATR
(Answer To Reset) request.
The clock can also be applied to the card using a RSTIN
CRD_VCC
CRD_VCC
CRD_RST
CRD_RST
CMDVCC
CMDVCC
CRD_CLK
CRD_CLK
CRD_IO
CRD_IO
Figure 4. Activation Sequence − RSTIN mode (RSTIN Starting High)
RSTIN
RSTIN
Figure 5. Activation Sequence − Normal Mode
t0
t0
http://onsemi.com
t1 t2
t1 t2 t3
t
act
12
channels according to a specific hardware built−it sequencing
internally defined but at the end the actual activation
sequencing is the responsibility of the application software
and can be redefined by the micro−controller to comply with
the different standards and the different ways the standards
manage this activation (for example light differences exist
between the EMV and the ISO7816 standards).
The internal activation sequence activates the different
t4
ATR
ATR