Texas Instruments HDC3020EVM, User Manual, Page: 16 / 24

7 Schematic
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3/9/2021
SENS067_SCH.SchDoc
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Mod. Date:
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Sheet: of
B http://www.ti.com
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HDC3020EVM Project Title:
Designed for: Public Release
Assembly Variant: 001
© Texas Instruments 2021
Drawn By:
Engineer:
Pavani Tenneti
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.
Not in version control SVN Rev:
SENS067 Number: Rev: E1
TID #: N/A
Orderable: HDC3020EVM
VBUS
220 ohm
L1
3P3V
IN
1
2
EN
3
NC
4
OUT
5
GND
U1
TLV70033DCKR
DM VBUS
22
R1
VBUS
1
D-
2
D+
3
GND
4
5
6
J1
DP
2.2uF
C1
4.3V
D1
BZT52C4V3T-7
100k
R3
1.0k
R4
22
R2
GND
10uF
C2
GND
GND
6.2V
D2
BZT52C6V2T-7
1.00M
R5
1.50k
R6
GND
10pF
16V
C3
10pF
16V
C4
GND
PUR
GND GND
Green
1
2
D3
1
2
S1
GND
GND
TPD4E004DRYR
IO1
1
IO2
2
GND
3
IO3
4
IO4
5
VCC
6
U2
GND GND
47
R7
VCC
110
R8
1
MP2 MP1
2
MP3 MP4
SW1
GND
0.1uF
10V
C5
GND GND
BSL
VCC 3P3V
IN
1
2
EN
3
NC
4
OUT
5
GND
U4
TLV70033DCKR
VCC
VBUS
VCORE VUSB
2.2uF
C6
V18
GND
SBWTCK
10uF
C7
1
2
3
J2
Header_3x1
DNP
GND
SBWTDIO
0.47uF
6.3V
C8
0.47uF
6.3V
C9
0.47uF
6.3V
C10
GND
GND
GND GND
GND
0.1uF
10V
C11
0.1uF
10V
C12
GND GND
GND
VCC
Super Red
D4
1.0k
R13
XT2IN
MSP430F5528IRGCR
P6.0/CB0/A0
1
P6.1/CB1/A1
2
P6.2/CB2/A2
3
P6.3/CB3/A3
4
P6.4/CB4/A4
5
P6.5/CB5/A5
6
P6.6/CB6/A6
7
P6.7/CB7/A7
8
P5.0/A8/VREF+/VEREF+
9
P5.1/A9/VREF-/VEREF-
10
AVCC1
11
P5.4/XIN
12
P5.5/XOUT
13
AVSS1
14
DVCC1
15
DVSS1
16
VCORE
17
P1.0/TA0CLK/ACLK
18
P1.1/TA0.0
19
P1.2/TA0.1
20
P1.3/TA0.2
21
P1.4/TA0.3
22
P1.5/TA0.4
23
P1.6/TA1CLK/CBOUT
24
P1.7/TA1.0
25
P2.0/TA1.1
26
P2.1/TA1.2
27
P2.2/TA2CLK/SMCLK
28
P2.3/TA2.0
29
P2.4/TA2.1
30
P2.5/TA2.2
31
P2.6/RTCCLK/DMAE0
32
P2.7/UCB0STE/UCA0CLK
33
P3.0/UCB0SIMO/UCB0SDA
34
P3.1/UCB0SOMI/UCB0SCL
35
P3.2/UCB0CLK/UCA0STE
36
P3.3/UCA0TXD/UCA0SIMO
37
P3.4/UCA0RXD/UCA0SOMI
38
DVSS2
39
DVCC2
40
P4.0/PM_UCB1STE/PM_UCA1CLK
41
P4.1/PM_UCB1SIMO/PM_UCB1SDA
42
P4.2/PM_UCB1SOMI/PM_UCB1SCL
43
P4.3/PM_UCB1CLK/PM_UCA1STE
44
P4.4/PM_UCA1TXD/PM_UCA1SIMO
45
P4.5/PM_UCA1RXD/PM_UCA1SOMI
46
P4.6/PM_NONE
47
P4.7/PM_NONE
48
VSSU
49
PU.0/DP
50
PUR
51
PU.1/DM
52
VBUS
53
VUSB
54
V18
55
AVSS2
56
P5.2/XT2IN
57
P5.3/XT2OUT
58
TEST/SBWTCK
59
PJ.0/TDO
60
PJ.1/TDI/TCLK
61
PJ.2/TMS
62
PJ.3/TCK
63
RST/NMI/SBWTDIO
64
QFN PAD
65
U5
XT2OUT
1
3
NC
4
NC
2
Y1
VCC
DP
DM
33.0k
R14
PUR
SBWTDIO V18
VCORE
SBWTCK
VBUS
2200pF
50V
C14
VUSB VCC
GND
GND
0.1uF
10V
C15
0.1uF
10V
C16
0.1uF
10V
C17
GND GND GND
VBUS = 5V INPUT
VUSB = 3.3V OUT
VUSB 12mA Max
TCA9517DGKR
VCCA
1
SCLA
2
SDAA
3
GND
4
EN
5
SDAB
6
SCLB
7
VCCB
8
U3
MCU_SDA
MCU_SCL
VCCA 0.9V to 5.5V
VCCB 2.7V to 5.5V
0.1uF
10V
C13
GND
3P3V
10k
R11
10k
R12
10k
R9
10k
R10
VCC VCC 3P3V 3P3V
SCL
SDA
MCU_SCL
MCU_SDA
VDD
5
ADDR
2
ADDR1
7
RESET
6
ALERT
3
EP
9
SCL
4
SDA
1
GND
8
HDC3020DEF
U6
ALERT
SCL
SDA
RESET
GND
Figure 7-1. HDC3020EVM Schematic
Schematic www.ti.com
16 HDC3020EVM User Guide SNAU267A – JUNE 2021 – REVISED JUNE 2021
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