boards:ecb:protoboard_iii:protoboard_iii [RetroBrew Computers Wiki]

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====== ProtoBoard III ======

The ProtoBoard III is an 160x100mm EBC bus prototyping board that feature a generous through hole prototyping area and the typical bus buffering and address decoding required to implement an I/O peripheral.

Features:

  * Flexible 6-bit I/O address range selection
  * Pin headers for buffered address, data and control signals.
  * ECB bus pinout area for access to other ECB signals.

{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/protoboard_iii/protoiii-17-10-05_built.jpg?nolink&640x385|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_boards_ecb_protoboard_iii_protoiii-17-10-05_built.jpg}}

{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/boards/ecb/protoboard_iii/protoiii-17-10-05.jpg?nolink&640x404|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_boards_ecb_protoboard_iii_protoiii-17-10-05.jpg}}

<font 16px/inherit;;inherit;;inherit>The board may be constructed with either the 74LS682 (preferred), 74LS684, or 74LS688 chip. The last two require a strip of 22K bussed resistors; the first does not.</font>

<font 16px/inherit;;inherit;;inherit>Note that the footprint for the second ECB connector is for access to ECB signal lines and is not suitable for connect to another ECB board through a female vertical connector.</font>


====== Version ======

The current version is 17-10-05

Gerbers are here : {{:boards:ecb:protoboard_iii:ecb_protoboard_17-10-05_mfg.zip|:boards:ecb:protoboard_iii:ecb_protoboard_17-10-05_mfg.zip}}

Please note errata for previous version [[:boards:ecb:protoboard_iii:errata|here.]]

Respin consideration: Add +5VDC barrel jack connector, add mounting holes, change reset jumper to solder pad.


====== Files ======

^Name^Size^Date|
|{{:boards:ecb:protoboard_iii:ecb_proto_1606_17.pdf|Board Description}} |770Kb|12-Mar-2017|
|{{:boards:ecb:protoboard_iii:ecb_protoboard_iii_1606_sch.pdf|ProtoBoard III schematic}} |219Kb|21-Oct-2017|
|{{:boards:ecb:protoboard_iii:protoboard_iii_parts_list.pdf|ProtoBoard III parts list }} |18Kb|12-Mar-2017|
|{{:boards:ecb:protoboard_iii:protoboard_iii_parts_-_jameco.csv|Jameco Part numbers}} |1kb|18-Feb-2017|
|{{:boards:ecb:protoboard_iii:ecb_protoboard_1606_17_jpg.zip|Photos from Kicad}} |5.4Mb|02-Feb-2017|
|{{:boards:ecb:protoboard_iii:ecb_prototype_iii_1606_17_kicad.zip|Kicad 4.4.0 project files}} |625Kb|02-Feb-2017|
|{{:boards:ecb:protoboard_iii:update_2017-10-04_board_1606_to_1710.pdf|ProtoBoard III errata - mandatory}} |24Kb|04-Oct-2017|

This board is licensed for hobbyist use only.

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