Datasheet

EN1
SEL1
EN2
SEL2
CSEL
CLKRUN1
CLKRUN2
VCC Range - 1.65 V to 3.3 V
VBAT Range - 2.3V to 5.5V
Select SIM1 Select SIM2
LDO1 = 1.8V
LDO1 = 2.95V
LDO2 = 2.95V
LDO2 = 1.8V
Enable SIM2
Disable SIM2
Enable SIM1 Disable SIM1
CLK1 Ungated
CLK1 Gated w/CSEL
CLK2 Gated w/CSEL
CLK2 Ungated
TP2
J8
J13
VCC
J11
GND
J12
VBAT
TP1
C1 C2 C3
C5 C6 C7
SIM1
7111S2015X02
1 2 3
J1
1 2 3
J2
C1
C1206
0.1uF
C2
C1206
1uF
C3
C1206
1uF
TP3
TP4
J9
J10
TP5
TP6
TP7
1
VSIM2
2
VCC
3
VBATT
4
VSIM1
5
SIM1CLK
6
SIM1RST
7
SIM1I/O
8
I/O
9
RST
10
CLK
11
EN1
12
VSEL1
13
CSEL
14
CLKRUN1
15
CLKRUN2
16
VSEL2
17
EN2
18
SIM2I/O
19
SIM2RST
20
SIM2CLK
21
PWPD
U1
TXS4558RUK
TP8
TP9
C1 C2 C3
C5 C6 C7
SIM2
7111S2015X02
TP10
TP11
C4
C1206
1uF
1 2 3
J3
1 2 3
J4
1 2 3
J5
1 2 3
J6
1 2 3
J7
VCC
SIM1CLK
VSIM1
SIM1IO
VBAT
SIM1RST
SIM1RST
RST
SIM1CLK
EN1
VSEL1
SIM1IO
VSIM1
VCC
VCC
SIM1IO
VSIM1
IO
CLK
RST
IO
CLK
SIM2CLK
VSIM2
SIM2IO
SIM2RST
SIM2RST
SIM2CLK
SIM2IO
VSIM2
VSIM2
VCC
CLK
RST
IO
EN1
EN2
EN2
VSEL2
VCC
VCC
CSEL
VCC
VCC
VCC
CLKRUN2
CLKRUN1
VSIM2
VBAT
VSIM1
SIM1CLK
SIM1RST
VSEL1
CSEL
CLKRUN2
CLKRUN1
VSEL2
SIM2IO
SIM2RST
SIM2CLK
www.ti.com TXS4558 EVM Schematic
6 TXS4558 EVM Schematic
5
SLLU153– September 2011 TXS4558 Evaluation Module
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