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256 kbit EPROM used in Commodore and Amiga equipment

IC number

27C256

IC function

256 kbit (32k×8) EPROM

Related components

64 kbit (8k×8) EPROM, 128 kbit (16k×8) EPROM, 1 Mbit (128k×8) EPROM

Component documentation

IC number	Manufacturer	Documentation
27C256	Intel	Not available

Component versions

IC number	Package	Access time	Replacement parts
D27C256	28-pin Ceramic DIP		M27C256B-12F6 available from: Conrad Electronic M27C256B-10F1 available from: Conrad Electronic M27C256B-10F1 available from: Conrad Electronic

Programmed components

IC number	CBM part number	CBM part description	Chip description	Checksum
27C256	318085-02		BIOS PC10-III V4.36	522A
D27C256 (Intel)	318086-02			DFD1

Positions

Device	Positions	Package	Software
PC10-III	U201	DIP	318085-02 (522A)
PC10-III	U607	DIP	318086-02 (DFD1)

Copyright © 2005-2010 Ronald van Dijk - All rights reserved
Last update: 8 August 2010