FXLP4555 FAIRCHILD [Fairchild Semiconductor], FXLP4555 Datasheet - Page 4

• Manufacturer Part Number: FXLP4555
• Description: 1.8V / 3.0V SIM Card Power Supply and Level Shifter
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

© 2010 Fairchild Semiconductor Corporation
FXLP4555 • Rev. 1.0.0
Pin Definitions
Pin
14
15
16
17
Exposed
RST_H
Name
I/O_H
DAP
NC
OUTPUT
INPUT/
Ground
INPUT
Type
(Continued)
The RESET signal present at this pin is connected to the SIM card through the
internal level shifter, which translates the level according to the V
value.
This pin is connected to the baseband. A bidirectional level translator adapts the serial
I/O signal between the smart card and the baseband. A built-in constant 18kΩ (typical)
resistor provides a high-impedance state when not activated.
No connect. It is recommended to solder to pcb GND.
Must be soldered to PCB ground plane.
4
Description
CC_C
programmed
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