UM0542
STR9 MEMS demonstration board schematics
7/20
Figure 4.
Schematics - I
2
C/SPI Flash/EEPROM device, amplifier, stabilizators
8
HO
LD
^/
RESE
T^
/WC
7
C/
C/
SC
L
6
D/
D/
SD
A
5
S^
/S^/
E0
1
Q/
Q/
E1
2
W^
/T
SL
^/
E2
3
V
SS
4
M9
5x
x/
M25
xx/
M3
4x
x
U7
M95
xx/
M2
5
xx/
M34x
x
Vm
m
SD
A/
SD
I
SSP0_M
IS
O
SC
L_
SPC
P8
7
P8
5
P8
6
I2
C/SPI
Flash / EEPR
OM de
vice
ST
ABILIZ
A
T
OR FOR
ANALOG
MEMS
(O
PTIONAL)
OPERA
T
IO
NAL AMPLIFIE
R
C8
0
100 nF
C8
1
100 nF
C8
2
100 nF
V
CC
P4
2
P4
1
P4
0
P4
2
P4
1
P4
0
R8
0
0
Ω
R8
1
0
Ω
R8
2
0
Ω
P40-MEMS
P41-MEMS
P42-MEMS
OUT
1
GN
D
2
IN
+
3
5
IN
–
4
U8
0
TS
507I
LT
OUT
1
GND
2
IN
+
3
5
IN
–
4
U8
1
TS
507
IL
T
OUT
1
GN
D
2
IN
+
3
5
IN
–
4
U8
2
TS
507I
LT
V
IN
1
GN
D
2
IN
HI
BIT
3
V
OUT
5
NC
4
U1
0
LD
2980CMx
x
3.3 V
3.3 V
X7R
C1
01
2.
2 µF
X7R
C
100
1 µF
C7
0
100 nF
C
102
10 nF
Vm
m
R
100
0
Ω
3.3 V
ST
ABILIZ
A
T
OR FOR
DI
GIT
AL
MEMS
(O
PTIONAL)
V
IN
1
GN
D
2
IN
HI
BIT
3
5
NC
4
U1
1
LD
2980
Cx
x
3.3 V
3.3 V
X7R
C1
11
2.2 µF
X7R
C1
10
1 µF
C1
12
10 nF
R1
10
0
Ω
3.3 V
ST
ABILIZ
A
T
OR FOR
MEMOR
Y
(O
PTIONAL)
V
IN
1
GN
D
2
IN
HI
BI
T
3
V
OUT
5
NC
4
U1
3
LD
2980CMx
x
Vm
m
3.3 V
3.3 V
X7R
C
131
2.2 µF
X7R
C1
30
1 µF
C1
32
10 nF
Vm
m
R1
30
0
Ω
Vm
m
3.3 V
P4
3
P4
3
R8
3
0
Ω
P43-MEMS
OUT
1
GN
D
2
IN
+
3
5
IN
–
4
U8
3
TS
50
7I
LT
C8
3
10
0 nF
C8
4
10 nF
C8
5
10 nF
C8
6
10 nF
C8
7
10 nF
R8
5
10
k
Ω
R8
4
10 k
Ω
R8
7
10
k
Ω
R8
6
10 k
Ω
R8
9
10 k
Ω
R8
8
10 k
Ω
R9
1
10
k
Ω
R9
0
10 k
Ω
C7
1
10 nF
X7R
C1
03
10 µF
AM00339
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
DD
V
CC
V
DD
V
OUT
V
DD
electronic components distributor