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AS7221

UART Command Interface

Datasheet

• PUBLIC

DS000479

• v4-00 • 2019-Jun-28

│ 31

9.5

Serial Flash

A SPI Flash device is a required operating companion to the AS7221. See Figure 30 for supported

devices, which are tested by ams. Using other devices can cause communication issues and may not

be compatible Flash timing is provided in Figure 25 for debug purposes.

Figure 30:

Flash Memory Overview

Serial Flash

Manufacturer

AT25SF041xx

Adesto Technologies

AT25DF041xx

Adesto Technologies

MX25L4006ExxI-12G

Macronix

SST25PF040C

Microchip Technology

W25X40CLSNIG

Winbond Electronics

LE25U40CMD

ON Semiconductor

GD25Q40C

GigaDevice

FS25Q004F1

Foresee

Additional devices may have been added to this list after publication of this datasheet. See “AS72xx

External Flash program and update

” application note available on the ams AS7221 product document

section of the ams website.

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