27C256 Datasheet – 256K (32×8) CMOS EPROM ( PDF )

Part Number: 27C256

Function: 256K (32×8) CMOS EPROM

Package: DIP, SOP 28, 32 PLCC Type

Manufacturer: Microchip Technology


27C256 datasheet


The Microchip Technology Inc. 27C256 is a CMOS 256K bit electrically Programmable Read Only Memory (EPROM). The device is organized as 32K words by 8 bits (32K bytes). Accessing individual bytes from an address transition or from power-up (chip enable pin going low) is accomplished in less than 90 ns. This very high speed device allows the most sophisticated microprocessors to run at full speed without the need for WAIT states. CMOS design and processing enables this part to be used in systems where reduced power consumption and reliability are requirements.


• High speed performance
– 90 ns access time available

• CMOS Technology for low power consumption
– 20 mA Active current
– 100 μA Standby current

• Factory programming available

• Auto-insertion-compatible plastic packages

• Auto ID aids automated programming

• Separate chip enable and output enable controls

Other data sheets are available within the file:

27C25610/P, 27C25610/SO, 27C25610/TS, 27C256-10/VS

27C256 Datasheet PDF Download

27C256 pdf