There is a memory type Non-Volatile for this type of device. It comes in a Tube. The case is embedded in 28-CFlatPack. 256Kb 32K x 8 is the chip's memory size. The device uses a mainstream EEPROM-format memory. With an extended designed operating temperature of -55°C~125°C TC, this device is capable of lots of demanding applications. It is capable of handling a voltage supply of 4.5V~5.5V. As far as the mounting type is concerned, Surface Mount is recommended.
AT28HC256-90FM/883-023 Features
Package / Case: 28-CFlatPack
AT28HC256-90FM/883-023 Applications
There are a lot of Microchip Technology AT28HC256-90FM/883-023 Memory applications.