Partlist for IDEfile PCB Rev. B            Dr. Patrick Schäfer, 24.04.2006


Qty Value                Parts

2   22p NP0 5mm          C2, C3
1   47p X7R 5mm          C13
1   68p X7R 5mm          C14
20  100n X7R 5mm         C1, C4, C7, C8, C9, C10, C11, C15, C16, C17, C18,
                         C19, C20, C21, C22, C23, C24, C25, C26, C27
1   220n X7R 5mm         C28
1   2.2µ/16V Elco 2.5mm  C5
2   100µ/16V Elco 5mm    C6, C12

2   180R                 R8, R9
1   220R                 R11
1   470R                 R1
1   1k                   R12
1   3k3                  R13
2   10k                  R7, R10
1   47k                  R2
2   8x 4k7 Type A        RP1, RP2

1   10k Pot 2.5x5mm      P1

2   1N4148               D2, D3
2   LED                  D1, D5

1   27C64, 27C128 
    or 27C256            IC3
1   62C64-15 or 6116-15  IC4
1   80C31-12 or -18      IC1
3   74HCT191             IC5, IC6, IC7
1   74HCT244             IC12
2   74HCT245             IC8, IC14
3   74HCT573             IC2, IC9, IC10
1   74LS14               IC17
1   74LS245              IC15
1   74LS280              IC16
1   GAL16V8              IC13
1   GAL22V10             IC11
1   MAX232A              IC18

1   Quartz 11,059MHz     
    or 18,432MHz HC-18	 Q1


1   Jumperpins 1X02      J6, J7, J10, J11
1   Jumperpins 1X03      J8, J9
1   Jumperpins 1X05      J12
1   Pin header 90° 2X05  J4
1   Jumperpins 2X08      J3
1   Pin header 90° 2X13  J1
1   Jumperpins 2X20      J2



Remarks:

* use sockets for all ICs, at least for IC3, IC11 and IC13,
* select Q1 according to your microcontroller's speed and use the correct
  software version (-11 or -18),
* use a microcontroller with "regular" divide-by-12 timing. High-speed 
  microcontrollers use a different memory timing and may cause problems with
  the DMA circuit,
* RP1, RP2 are optional pullups at the ProFile interface lines for improved 
  EMC performance,
* the board provides support for a Dallas Semiconductor DS5000 Emulator cpu.
  Connect a two-pole switch from RESET to Vcc (using J10) and from the -PSEN 
  pin (between IC2 and IC3) to Gnd (e.g the pin close to IC8) to toggle 
  between "LOAD" (SW closed) and "RUN" (SW open) mode. Both 11,059 and 
  18,456 MHz crystals allow firmware downloads at 19k2, IDEfile's regular 
  communication speed. Refer to the DS5000 manual for details.



Change History:

Jul 2004: C29 omitted. This was intended as an EMC capacitor to filter spikes
          on the -PSTB line, but caused trouble with my Apple III due to 
          increased risetime. 
          This change should be implemented in all systems!
Jan 2005: C14 changed to 68pF. 
          This change is not needed if your system is working fine.
May 2005: Power-on reset network changed from 10k/10µF to 47k/2.2µF. Some
          74LS14 may not be able to completely discharge C5 -- TTL output 
          impedance for pull-up is specified with 12k (-0,4mA) (In practice,
          most TTLs are stronger, therefore the old combination works in 
          most cases, too). 
          This change is not needed if your system is working fine.
Apr 2006: typo corrected: Q1 should be 18,432 MHz, not 18,342!



 


