
CYW9P62S1-43438EVB-01 PSoC 62S1 Wi-Fi BT Pioneer Kit Guide, Doc. # 002-28692 Rev. **
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Hardware
3.2.11
Cypress Quad SPI F-RAM
The PSoC 62S1 Wi-Fi BT Pioneer Board contains a CY15B104QSN Excelon™ F-RAM device,
which can be accessed through a Quad SPI interface. The F-RAM is 4-Mbit (512K × 8) and is capa-
ble of Quad SPI speed up to 108 MHz but the PSoC 6 MCU QSPI is limited to 80 MHz.
Figure 3-15. Schematics of Quad SPI F-RAM
U4
CY 15B104QSN
CS
1
SO/IO1
2
WP/IO2
3
VSS
4
SI/IO0
5
SCK
6
RESET/IO3
7
VDD
8
Quad SPI F-RAM
FRAM_VDD
FRAM_VDD
FRAM_SS_L
VCC_VDDIO0
FRAM_VDD
C69
0.1uF
16V
QSPI_SCK
QSPI_IO0
QSPI_IO1
QSPI_IO2
QSPI_IO3
R113
10K
R109
0 OHM
TP10