ncn4557 ON Semiconductor, ncn4557 Datasheet - Page 2

• Manufacturer Part Number: ncn4557
• Description: 1.8 V/3.0 V Dual Sim/sam/smart Card Power Supply And Level Shifter
• Manufacturer: ON Semiconductor

GND
V
P4
P3
P2
P1
P0
CC
1.8 V to 5.5 V
V
DD
CRD_V
CRD_V
13
12
10
11
0.1 mF
2
9
8
V
ENABLE
SEL0
SEL1
RST
CLK
I/O
DD
Figure 1. Typical Interface Application
V
CC
V
CC
Figure 2. QFN−16 Pinout (Top View)
BAT
DD
B
A
0.1 mF
2.7 V to 5.5 V
1
2
3
4
V
V
3
BAT
BAT
http://onsemi.com
16
5
NCN4557
CRD_RSTB
CRD_RSTA
CRD_CLKA
CRD_CLKB
CRD_V
CRD_V
NCN4557
CRD_I/OA
CRD_I/OB
15
6
GND
17
2
GND
14
7
CC
CC
A
B
13
8
4
6
5
7
17
14
16
15
1
12
11
10
9
1.8 V/3 V SIM/Smart Card
1.8 V/3 V SIM/Smart Card
1 mF
1 mF
Exposed Pad (EP)
1
2
3
4
4
3
2
1
SEL0
SEL1
CLK
RST
V
RST
CLK
C4
C4
CLK
RST
V
CC
CC
CARD A
CARD B
GND
GND
V
V
I/O
I/O
C8
C8
pp
pp
5
6
7
8
8
7
6
5