Date   : Sat, 29 Oct 2005 09:13:49 +1000 (EST)
From   : Peter Craven <cjl_craves@...>
Subject: Re: (BBC-Micro) Possible EPROM???

Hello

Can a the following EPROM be used in a Master
Computer:

The 27C512-90 is a 64k x 8 bits 90ns CMOS EPROM with a
transparent glass window allowing the device to be
erased and written over multiple of times by the
programmer.
Features:      

    * 5V +/-10% Supply Voltage in Read Operation
    * 90ns fast access time
    * Low power consumption: Active Current 30mA;
Standby Current 100ľA
    * Programming voltage: 12.75V +/-0.25V
    * Programming time: 6 seconds (Presto IIB
Algorithm)
    * Electronic signature
    * Ideally suited for microprocessor systems
    * Organisation: 65,536 x 8 bits
    * UV Erasable

Cat No.        Z9359
Category:      ICs - EPROMS
Support:       27C512-90 64k x 8 90nS EPROM (Z9359)


Dr Peter Craven (MBBS Uni. of Qld)

12 Treacher St

Mt Gravatt

QLD 4122

Ph (H): (07) 3349 0820









       

       
               
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