AT28C256-15DM/883-815

Series:	--
Packaging:	Tube
Part Status:	Active
Memory Type:	Non-Volatile
Memory Format:	EEPROM
Technology:	EEPROM
Memory Size:	256Kb (32K x 8)
Write Cycle Time - Word, Page:	10ms
Access Time:	150ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	-55°C ~ 125°C (TC)
Mounting Type:	Through Hole
Package / Case:	28-CDIP (0.600", 15.24mm)
Supplier Device Package:	28-CDIP

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction to Memory

Memory is a storage device used to store data and instructions for use in a computer system. It can be divided into two categories: volatile memory and non-volatile memory. Volatile memory does not retain information when the power is off, while non-volatile memory can retain information when the power is off.

AT28C256-15DM/883-815 Application Field and Working Principle

The AT28C256-15DM/883-815 is a non-volatile memory device produced by Atmel Corporation. It is a 256K (32,768 * 8-bit) EEPROM (Electrically Erasable Programmable Read-Only Memory) organized as 8K words * 8-bits, and is accessed via a 15ns address and data bus. The device combines high-density memory, organization, and flexible programmable control functions in a single package, allowing designers to reduce the system board while meeting design goals.The device has many features, including a multiple-chip enable feature and an on-chip write enable control feature. The multiple-chip enable feature allows multiple AT28C256-15DM devices to be connected to the same address and data bus. The on-chip write enable control feature allows users to coordinate the write operation of the device with the other devices connected to the bus.The AT28C256-15DM devices are available in a small footprint package, making it an excellent choice for applications in which space is at a premium. It has an operating voltage range from 3V to 5.5V and features a –40°C to +85°C temperature range. In terms of working principle, the device works by using a series of cells that are able to hold electrical charges that represent the state of a bit. Every cell contains two transistors, each of which contains two capacitors. One of the capacitors acts as a floating gate, while the other acts as a control gate. A voltage applied to the control gate will cause electrons to flow through the floating gate, thus altering the charge stored in the cell. Data can be written to the device by placing the device into write mode, followed by the input of the data to be written. An erase operation is required prior to the first write operation. Data can then be read from the device by placing the device into read mode, followed by the address of the data to be read from the device.

Conclusion

The AT28C256-15DM is a high-density non-volatile memory device produced by Atmel Corporation. It combines high-density memory, organization, and flexible programmable control functions in a single package, allowing designers to reduce the system board while meeting design goals. It has an operating voltage range from 3V to 5.5V and features a –40°C to +85°C temperature range. The device works by manipulating the charge stored in cells to represent the state of a bit. Data is written to and read from the device through a simple set of commands.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description