Difference between revisions of "LB-MEM-03"

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[[file:LB-MEM-03_EPROM_27C256_512.PNG]]
 
[[file:LB-MEM-03_EPROM_27C256_512.PNG]]
 
* J2 (A15)
 
** Pin 3 on 32-pin part
 
** Pin 1 on 28-pin part
 
* J3 (A19)
 
** Pin 1 on 32 pin part
 
** Not used on 28-pin part
 
* J4 (A17)
 
** Pin 30 on 32-pin part
 
** Pin 28 on 28-pin part
 
* J5 (A18)
 
** Pin 31 on 32-pin part
 
** Not used on 28-pin part
 
* J6 (A14)
 
** Pin 29 on 32-pin part
 
** Pin 26 on 28-pin part
 
  
 
==== All EPROMs ====
 
==== All EPROMs ====

Revision as of 16:39, 20 August 2024

LB-MEM-03 REV1-FRONT-3D.png

  • EPROM/EEPROM card
  • 32-pin ZIF socket
  • Up to 1MB
    • Headers to jump for smaller parts
  • Connects to Address/Data and Memory control lines
  • 50x75mm card


Design

EPROM in ZIF socket

LB-MEM-03 EPROM.PNG

EPROM Size Jumpers

LB-MEM-03 JUMPERS.PNG

27C256/27C512 EPROMs

LB-MEM-03 EPROM 27C256 512.PNG

All EPROMs

LB-MEM-03 EPROM VARS.PNG

Backplane

LB-MEM-03 BKPL.PNG

Mechanicals

LB-MEM-03 REV1 MECH.PNG

Checkout

Rev 1

  • Holes were very tight for ZIF pins

Assembly Sheet

  • Interactive BOM