3.5 Serial Flash (SST26VF032B) (U202)

The Ethernet to Wi-Fi® Bridge Board has an on-board 32 Mb, 2.3-3.6V Serial Flash (SST26VF032B) (U202) memory for data storage. For more details, refer to the SST26VF032B/SST26VF032BA 2.5V/3.0V 32-Mbit Serial Quad I/O (SQI) Flash Memory (DS20005218).

Note: Ethernet to Wi-Fi® Bridge Board does not use the SST26VF032B’s SQI feature but supports traditional Serial Peripheral Interface (SPI) protocol.
Table 3-5. SPI Flash (SST26VF032B) Pin Details

Pin Number on SPI Flash SST26VF032B (U202)

Standard Pin on SPI Flash

Pin on WFI32E01PE

Description

1

CE#

SPI1CS/RPA1

SPI Flash SST26VF032B Chip Select (CS)

2

SO/SIO1

SDI1/RPC7

SPI Flash SST26VF032B serial data output for SPI mode

3

WP#/SIO2

4

VSS

GND

Ground

5

SI/SIO0

SDO1/RPC8

SPI Flash SST26VF032B serial data input for SPI mode

6

SCK

SCK1/RPC6

SPI Flash SST26VF032B serial clock

7

HOLD#/SIO3

8

VDD

VDD

3.3V power supply