> RM=80 LM=3 TM=1 BM=66                     HD64180/Z80H LAYOUT                 12.288 Xtal                              Fig. 1                |            |  |          <--- 5.50" --->                   |          -- C--o---------|--|-|------------------------------------------| --          |  o                                                         |             |  o  Start 3 holes over by 4 holes down from the Corner.    |             |  o                                                         |             |ooo-----*-----|  |-----*-----|                              |             |  |           |  |           |         Extra Bread board    |             |  |           |  |           |                              |             |  |           |  |           |              Area            |             |  |  Z80 SOC  |  |  HD64180  |                              |   |         |  |           |  |           |                              | 3.50"       |  |  Socket   |  |   DPU1    |                              |   |         |  |  Adapter  |  |           |                              |         |   |  |           |  |           |             Tie Down for     |        3.128"  |           |  |           |            Two Serial ports  |         |   |  |           |  |           |                              |             |  |-----------|  |-----------|                              |             |    74S244       |-----*-----|                              |             |  |---------|    |           |                              |             |  |  DPU3   *    |           | |----------------------------|  --         |  |---------|    |           | |     <---  3.50" --->       |          -- |--------------|  |   Z80H    | |   **-----------------------/             |  <-.75"->    |  |           | |   **                       /                    **      |  |   DUP2    | |   **                       /                    **      |  |           | |   **                       /                Stand Off   |  |           | |   **  Key Board Cable      /          -- |--------------|  |           | |   **                       /             |  |---------|    |           | |   **                       /             |  |  DPU4   *    |-----------| |   **                       /         |   |  |---------|      |---------| |   **                       /        1.75"|     74S00    1489 |  DPU5   * |   **-----------------------/  |      |   |                   |---------| |                             2.50"        |                   |---------| |                               |          |                   |  DPU6   * |  1488                                    |                   |---------| |                                       -- |-------------------------------|                               --         |    <--- 2.00 " --->           |                                           