mc33561dtbr2 ETC-unknow, mc33561dtbr2 Datasheet - Page 4

• Manufacturer Part Number: mc33561dtbr2
• Description: Power Management Interface Smartcard Readers Couplers
• Manufacturer: ETC-unknow

POWER SUPPLY AND GROUND
Pin
13
14
19
20
1
PWR_GND
CRD_GND
CRD_VCC
Ext_L
Vbat
Symbol
POWER
POWER
POWER
POWER
POWER
Type
This pin is the current return from the external inductor L1. It is mandatory to
carefully connect this pin to CRD_GND ground plane.
This pin is the signal ground and must be connected to the ground pin of the card
connector. This pin is the reference level for all analog and digital signals.
This pin is connected to the Vcc pin of the card connector. This pin is the logic level
reference for pins xx xx xx.
This pin is connected to the external inductor used for the DC/DC converter. Please
refer to the DC/DC block description.
This pin is connected to the supply voltage. The MC33561 operation is inhibited
when Vbat is below the minimum value.
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MC33561
4
Name/Function