Figure 4-3. Power Management Unit Schematic
GND
GND
GND
GND
4.7uF
10V
0402
C1
4.7uF
10V
0402
C4
4.7uF
10V
0402
C6
4.7uF
10V
0402
C8
GND
VDD_MAIN
VDD_MAIN
VDD_MAIN
VDD_MAIN
VDD_MAIN
GND
VDD_MAIN
VDD_3V3
VDD_3V3
VDDUTMII
VDDOSC_PLL
VDDPLLA
VDD_DDR
VLDO2
VDDIODDR
VDDCORE
10uH
MLZ1608N100LT000
L5
GND
VLDO1
1k
0201
1%
R3
22uF
10V
0603
C2
22uF
10V
0603
C5
22uF
10V
0603
C7
22uF
10V
0603
C9
10uH
MLZ1608N100LT000
L2
(1V2)
TWCK_MCP16502_PD20
TWD_MCP16502_PD19
INT_MCP16502_PC8
NRST
WKUP
SHDN
nSTART_SOM
1.5uH
DFE252012P-1R5M=P2
L1
1.5uH
DFE252012P-1R5M=P2
L3
1.5uH
DFE252012P-1R5M=P2
L4
1.5uH
DFE252012P-1R5M=P2
L6
0R
0201
R5
GND
4.7uF
10V
0402
C10
4.7uF
10V
0402
C13
4.7uF
10V
0402
C14
4.7uF
10V
0402
C15
LVIN 20
LOUT1 19
LOUT2 21
nINTO
1
PGND2 13
SW2 14
PGND1 12
SW1 11
PVIN1 10
PVIN2 15
EP
33
OUT1 9
OUT2 16
PGND4 29
SW4 30
PGND3 28
SW3 27
PVIN3 26
PVIN4 31
OUT3 25
OUT4 32
nRSTO
2
SGND
3
SVIN
4
SDA
5
SCL
6
nSTRTO
7
PWRHLD
8
LPM
22
HPM
23
nSTRT
24
SELVL1
18
SELV2
17
MCP16502AC-E/S8B
U1
180R
BLM18PG181SN1D
FB1
10K
0201
1%
R6
10K
0201
1%
R2
2.2R
0201
5%
R4
2.2R
0201
5%
R8
(3V3)
(3V3)
(1V25)
(1V25)
(1V8)
(3V3)
(1.8V - 3V3)
max 1A
max 1A
max 1A
max 0.3A
max 0.3A
max 1A
3
1
2
BSS138
Q1
100k
0201
R1
GND
LPM
PIOBU0_PMIC
VDD_MAIN
4.7uF
10V
0402
C97
GND
4.7uF
10V
0402
C3
GND
4.7uF
10V
0402
C98
GND
VDD_MAIN
4.1.3
SQI Memory
4.1.3.1
Description and Schematic
The ATSAMA5D27-WLSOM1 embeds the SST26VF064BEUIT-104I/MF, a 64 Mb Serial Quad I/O Flash memory.
The SST26VF064BEUIT-104I/MF SQI features a six-wire, 4-bit I/O interface that allows for low-power, high-
performance operation in a low pin-count package.
The SST26VF064BEUIT-104I/MF also embeds EUI-48 and EUI-64 MAC addresses.
The SST26VF064BEUIT-104I/MF is available in 8-lead WDFN package with 6 mm × 5 mm dimensions.
For more information, refer to the
.
It is possible to deselect the Chip Enable of the embedded QSPI to use an external one. In this case, the NCS_QSPI
pin must be left floating and the signal QSPI1_CS_PB6 must be connected to an external QSPI Chip Select.
SAMA5D27 Wireless SOM1
Functional Description
©
2021 Microchip Technology Inc.
and its subsidiaries
Complete Datasheet
DS60001590D-page 23