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FXLA2203 Datasheet, PDF (3/16 Pages) Fairchild Semiconductor – Dual-Mode, Dual-SIM-Card Level Translator
Pin Configuration
Figure 2. Top Through View
Figure 3. Bottom View
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Name
NC
VCC1
VCC_Card1
GND
VCC_Card2
VCC2
RST_2
I/O_2
CLK_2
CLK_H_2
RST_H_2
I/O_H_2
VCC_H_2
GND
VCC
EN
17
Ch_Swap
18
VCC_H_1
19
I/O_H_1
20
RST_H_1
21
CLK_H_1
22
CLK_1
23
I/O_1
24
RST_1
Signal
NC
I
O
GND
O
I
O
I/O
O
I
I
I
Supply
GND
Supply
I
I
Supply
I/O
I
I
O
I/O
O
Description
No Connection
Power Supply 1 Input: Coming from PMIC 1 LDO
Power Output for Card Slot 1
Ground
Power Output for Card Slot 2
Power Supply 2 Input: Coming from PMIC 2 LDO
Reset Output to Card Slot 2
Data I/O for Card Slot 2; Open Drain
Clock Output to Card Slot 2
Clock Input of Host Interface 2
Reset Input of Host Interface 2
Data I/O of Host Interface 2; Open Drain
Power Supply of Host Interface 2
Ground
Power Supply of Control Pins: EN and CH_Swap
GPIO Enable. LOW disables both SIM card slots. HIGH enables both SIM
card slots. Connect to VCC if not used. Default level after power up is LOW.
Channel Swap. “1” host 1 to card slot 1, host 2 to card slot 2. “0” host 1 to
card slot 2, host 2 to card slot 1. Connected to VCC if not used. Default level
after power up is LOW.
Power Supply of Host Interface 1
Data I/O of Host Interface 1; Open Drain
Reset Input of Host Interface 1
Clock Input of Host Interface 1
Clock Output to Card Slot 1
Data I/O for Card Slot 1; Open Drain
Reset Output to Card Slot 1
© 2010 Fairchild Semiconductor Corporation
FXLA2203 • Rev. 1.0.5
3
www.fairchildsemi.com