About I2C specification for FX3

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NoAr_1540581
Level 5
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Distributor - Macnica (Japan)
5 solutions authored 250 sign-ins 100 replies posted

Hello

From AN76405, I2C EERPOM specifications are below.
ROM size: Up to 128kB(1024kb)×4, 128kB is recommended for microchip 24LC1025.
Q)
Are there any restrictions on the operating specifications?
1.Page write size (128LC for 24LC1025)
2. Writing time
3. Other

Best Regards

Arai

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YatheeshD_36
Moderator
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750 replies posted 500 replies posted 250 solutions authored

Hello Arai,

There are no restrictions on the operating specification of the devices recommended.

24LC1025 is compatible and tested as mentioned in AN76405.

Please refer to section 5.2.1 in AN76405.

Thanks,

Yatheesh

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YatheeshD_36
Moderator
Moderator
Moderator
750 replies posted 500 replies posted 250 solutions authored

Hello Arai,

There are no restrictions on the operating specification of the devices recommended.

24LC1025 is compatible and tested as mentioned in AN76405.

Please refer to section 5.2.1 in AN76405.

Thanks,

Yatheesh

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NoAr_1540581
Level 5
Level 5
Distributor - Macnica (Japan)
5 solutions authored 250 sign-ins 100 replies posted

Hello Yatheesh san

Thank you for you reply.

Is it possible to use 1.8V, page write size 256Byte products?
Product example microchip AT24CM01 /   OnSemi CAT24M01

Best Regards

Arai

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Hello Arai,

Yes, you can use 1.8V level EEPROM. Please ensure that the VIO5 power domain is powered to 1.8V.

Also, FX3 supports 256 Byte page size. The Fx3 CYUSB3-KIT Superspeed Explorer Kit uses a 256 byte page size  EEPROM.

Thanks,

Yatheesh

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CYUSB3KIT-003 EZ-USB® FX3™ SuperSpeed Explorer Kit

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NoAr_1540581
Level 5
Level 5
Distributor - Macnica (Japan)
5 solutions authored 250 sign-ins 100 replies posted

Hello Yatheesh san

I want to know how to change the page write byte count to 256 bytes.
Please tell me where to refer to the document

Best Regards

Arai

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Hello Arai,

The FX3 Bootloader code will handle the I2C communication with the EEPROM. It is compatible with 256 Byte page size.

The user need not configure the page size.

Thanks,

Yatheesh

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