1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
3
5
Level Shifters
3/13/2013
3 Level_Shifter.SchDoc
Sheet Title:
Size:
Schematic:
Mod. Date:
File:
Rev:
Sheet:
of
C
Texas Instruments and/or its licensors do not warrant the accuracy or completeness of this
specification or any information contained therein. Texas Instruments and/or its licensors do not
warrant that this design will meet the specifications, will be suitable for your application or fit for
any particular purpose, or will operate in an implementation. Texas Instruments and/or its
licensors do not warrant that the design is production worthy. You should completely validate
and test your design implementation to confirm the system functionality for your application.
Contact:
http://www.ti.com/support
PWA,BENCH,
Project:
Designed for:
Public Release
6569514
A
Assembly Variant:
[No Variations]
http://www.ti.com
© Texas Instruments 2013
EVALUATION BOARD,
TSC4270
TI
IOVDD
Ste3p3V
GND
CS
MISO
MOSI
SCK
IRQ
IOVDD
2.2µF
C3
GND
1.00k
R1
SCL_SCK
IOVDD
2.2µF
C4
GND
1.00k
R2
SDA_SDI
SHIFTED_MISO
IOVDD
Ste3p3V
GND
GPIO0
GPIO1
GPIO2
SHIFTED_IRQ
SHIFTED_GPIO0
SHIFTED_GPIO1
SHIFTED_GPIO2
RESETn
SHIFTED_RESETn
SHIFTED_CS
IOVDD
IOVDD
VCCA
1
A1
2
A2
3
A3
4
A4
5
GND
7
B4
10
B3
11
B2
12
B1
13
VCCB
14
OE
8
NC
6
NC
9
U5
TXB0104
1
3
N
C
2
D1
MA3J741
VCCA
1
A1
2
A2
3
A3
4
A4
5
GND
7
B4
10
B3
11
B2
12
B1
13
VCCB
14
OE
8
NC
6
NC
9
U2
TXB0104
2.2µF
C13
2.2µF
C12
2.2µF
C15
2.2µF
C14
GND
GND
GND
GND
SCL
SDA
SCL_SCK
SDA_SDI
GND
1
VREF1
2
SCL1
3
SDA1
4
SDA2
5
SCL2
6
VREF2
7
EN
8
U10
PCA9306DCU
IOVDD
GND
Ste3p3V
GND
GND
0.1µF
C20
0.1µF
C21
220k
R20
2.2k
R16
2.2k
R17
0
R3
DNI
0
R4
DNI
0
R5
DNI
0
R6
DNI
Stellaris side
DUT side
DUT side
