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Help identify the chip CY153D3

Posted: Wed Jun 02, 2021 12:59 pm
by optic44
Could you help me identify what flash is it, please?
Designation on top:
CY153D3
A 635465
CYP2043
cy153d3.jpg
cy153d3.jpg (93.23 KiB) Viewed 2678 times

It seems to me Cypress Flash SPI (pinout is for FLASH 25 series) but I could not identify it properly.
The device ID is 03h 2Eh C3h 7Fh:
cy153d3-id.jpg
cy153d3-id.jpg (113.95 KiB) Viewed 2678 times


I desoldered it from QSFP optical transceiver. Power supply in circuit is +3.3 volts.

Re: Help identify the chip CY153D3

Posted: Thu Jun 03, 2021 11:18 am
by ArT
Ha, I programmed before this chip. It's not FLASH SPI, it's... FRAM SPI :-)
It's Cypress/Infineon 8Mbit Serial F-RAM CY15B108QN and it's supported by REVELPROG-IS (FRAM -> 25 series -> Cypress -> CY15B108Q)
CY15B108QN.jpg
CY15B108QN.jpg (301.13 KiB) Viewed 2675 times

Re: Help identify the chip CY153D3

Posted: Fri Jun 04, 2021 2:19 pm
by optic44
Amazing, best support ever, thank you!