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FIGURE 1-1:
MEC1721/MEC1723 DECOUPLING IN 176-PIN WFBGA/LJ PACKAGE
C9
C13
2 Vias to VTR
C10
2 Vias to GND
14
MEC172x WFBGA (Bottom View)
Note: (For Part Numbers see ME172x DC Assy 6908 Schematic)
C9 = 0.1uF on VBAT
C10 = 0.1uF on VTR1
C11 = 0.1uF on VTR2
C12 = 0.1uF on VTR3
C14 = 0.1uF on VTR_REG
C15 = 0.1uF on VTR_ANALOG
C16 = 0.1uF on VREF_ADC
C13 = 0.1uF on VTR_PLL
C7 = 1uF Low ESR +/-20% <100 mOhm on CAP (X5R or X7R)
Y1 = 12.5pF load crystal, C5/C6 are 22pF XTAL1, XTAL2
2021 Microchip Technology Inc. and its subsidiaries
13
12 11
10
9
8
Y1
C5
C6
7
6
3
2
5
4
C11 C12
AN3759
A
B
C
C14
D
E
1uF
C7
F
Low
ESR
C15
G
H
C16
J
K
L
M
N
P
1
DS00003759B-page 3
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