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SAM4C32-EK [USER GUIDE]
Atmel-11253A-ATARM-SAM4C32-EK-UserGuide_17-Sep-14
Figure 3-8.
TWI EEPROM Schematic
3.4.2
SPI Serial Flash
The SAM4C32-EK embeds one serial Flash device AT25DFxx or AT45DBxx connected through the SPI. (The
AT25DF321A is mounted by default.)
Figure 3-9.
SPI Serial Flash Schematic
3.4.3
Adesto
®
Compatible Devices
ADDR: 0X50
(SCL)
(SDA)
PA25
PA24
VDDMAIN
VDDMAIN
VDDMAIN
C62
100nF
R45
0R
R42
4.7K
R41
4.7K
R46
0R
R40
0R/DNP
U4
AT24C1024B
A0
1
A1
2
A3
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
R39
0R/DNP
Do Not Populate
U13 and U10 PCB footprints
differ by 90 degrees and are stacked.
R100 to R103 should be close to SAM4C32.
SPI0_MISOC
SPI0_NPCSC
PA7
SPI0_MOSIC
PA6
SPI0_MISOC
PA8
SPI0_SPCKC
SPI0_MOSIC
SPI0_SPCKC
SPI0_NPCSC
PA5
VDDIN
VDDIN
VDDIN
VDDIN
R105
470K
R103
0R
U13
AT45DB321D DNP
SI
1
SCK
2
/RESET
3
/CS
4
/WP
5
VCC
6
GND
7
SO
8
R101
33R
R102
33R
C80
100nF
U10
AT25DF321A-SH-B
/CS
1
SO
2
/WP
3
GND
4
SI
5
SCK
6
/HOLD
7
VCC
8
R100
33R
Do Not Populate
Table 3-3.
Compatible Devices
Adesto
®
AT45DB Series Devices
Adesto AT25DF Series Devices
AT45DB64D2-CNU
AT25DF641A-SH
AT45DB321D-MWU
AT25DF321A-SH
AT45DB131D-SS
AT25DF161-SH
AT45DB081D-SS
AT25DF081-SSH
AT45DB041D-SS
AT25DF021-SH
AT45DB021D-SS
–
AT45DB011D-SS
–