Thanks all, for your advise. In summary: * if I change the 6526 for a 74LS374 I could save the power of this chip; anybody know off-hand how many mA? I could probably also power-down the 7406 during non-IEC activity. * I could use Flash for off-line mass-storage (I'm not too familiar with Flash, I was just going to use battery backed SRAM) * use LP RAM and CMOS EPROM * I could do without the VIC.... at risk of sacrificing compatibility * power down the CHAR-ROM * CMOS 555 timer Some other questions: * are the 6526a chips better technology than the 6526, could I use a the 8520 for the non TOD chip... would these save me anything further... * would turning off the clock to the 6510 reduce power during "sleep" mode and is the 6510 static or dynamic?? PLEASE TAKE NOTE: The contents of this email (including any attachments) may be privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this email in error, please advise us immediately (you can contact us by telephone on +61 8 9441 2311 by reverse charge) and then permanently delete this email together with any attachments. We appreciate your co-operation. Whilst Orbital endeavours to take reasonable care to ensure that this email and any attachments are free from viruses or other defects, Orbital does not represent or warrant that such is explicitly the case (C) 2000: Orbital Engine Company (Australia) PTY LTD and its affiliates - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail email@example.com.
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