EEPROM - delivered with latest 65uino-firmware preprogrammed. Note the photo is not the W27E257
Please be aware this is a used and discontinued IC and even though we test used IC's before reselling them, they should only be considered as a functional collector's item and comes with no guarantee it will keep functioning within the specs of the original datasheet.
Programming: This chip can be programmed with the Relatively Universal ROM Programmer (RURP) and is supported by the Firestarter software. Select the chip profile that matches this exact part and its datasheet programming voltage.
Typical uses: Electrically erasable parallel ROM for 8-bit firmware or fixed data, for example in a microcomputer.
The Winbond W27E257 is similar to the W27C512 but half the capacity. It is an integrated circuit (IC) commonly known as a Read-Only Memory (ROM) chip. This particular IC is used for non-volatile storage of data and program code in electronic systems.
The W27E257 is based on Electrically Erasable Programmable Read-Only Memory (EEPROM) technology, which allows for data to be written and rewritten as needed. Unlike traditional ROM chips, which are read-only, EEPROMs can be electrically programmed and erased, providing flexibility in applications where updates are required.
This IC is widely used in various embedded systems, microcontroller-based projects, and older computer systems to store boot code or configuration data. Its reliability and non-volatile nature make it suitable for applications where data retention is essential, even when the power is removed.
Video
This is one of the chip types the Relatively Universal ROM Programmer is built to program. The video shows that programmer in use.
