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CCS :: View topic – External EEPROM (25AA)

Currently, I’m just testing the coding using Proteus 7. The RDID command will release. If the CS pin is not driven high after the eighth bit of. This is a stress rating only and functional operation of the device at those or any other conditions above those.

If a Sector Erase instruction is given to an address that. Reset the write enable latch disable write operations. I already change and try both modes – Mode 0,0 and 1,1 but still nothing appear in virtual terminal. The 25XX powers on in the following state: The 25XX is available in standard packages.

After the correct read instruction.


25AA Datasheet(PDF) – Microchip Technology

Thank you The coding I made as below Code: Communication to the device can be paused via the. Standard and Pb-free packages available. SPI port of many of today’s popular microcontroller. Flash memory with both Flash and byte-level serial. Wed Sep 30, Read Status Register Instruction. The array is divided up into four segments. The Chip Erase function is entered by driving the CS.

Up to bytes of data can be sent to the. The device is accessed via the SI pin, with data being. 25az1024

25AA1024 Datasheet PDF

It is possible the parameters of the eeprom in the proteus is not matching with the real one. It is therefore necessary for the.

All times are GMT – 6 Hours. The user is able to. Page write operations are limited to writing.

See Table for Sector Addressing. The CS pin must. The write enable latch is reset on power-up. Ambient temperature under bias The 25XX contains a write enable latch. This latch must be set before any write operation will be.

Status Register is formatted as follows: Chip Erase – erase all sectors in memory array. CS is driven high the self-timed Sector Erase cycle is. The Chip Erase function is ignored if either of the. The following protection datashet been implemented to. The following is a list of conditions under which the.


Once power is restored to the. This is done by setting CS low.

CS must then be driven high after the last bit if the. Hardware write protection is. For example, in this table on page 4, for parameter No. Once the CS pin is.

Don’t try to communicate in an unsupported mode. The write enable latch is reset. Tue Sep 29, 9: Electronic Signature for device ID.

The Page Erase function will erase all bits FFh inside. Data from Status Register. The 25XX is abyte Serial Flash designed. CS High to Deep power. The device is in low-power Standby mode. I also tried put the delay between two operation as you suggested but still nothing displayed on the virtual terminal.