ECB SBC-188 rev3.1 - 4 layer PCB board 80C188 N8VEM project

Product detailed description

Bare 4 layer PCB board for single board computer SBC 188 revision 3

documentation available on: https://www.retrobrewcomputers.org/doku.php?id=boards:sbc:sbc-188:start

The SBC-188 version 3 is an update and improvement to the earlier board. This board is better suited for 80C188 operation at 25Mhz.

-  memory size is increased to 1Mb, allowing a full DOS memory of 640K plus high memory blocks.
- the 82C55 controller is configured as a PPIDE (parallel port IDE) connection; it works with hard disks as well as CF cards.
- an IDE8 connector directly on the CPU data bus is added.
- the floppy controller and connector are present. Drives may be 360K, 1.2M, 720K, or 1.44M.
- status LEDs indicate the sequence of boot-time P.O.S.T. diagnostics.
- the Serial I/O UART connector is altered to support RTS/CTS protocol, or crossed to DTR/DSR protocol.
- the board may be used stand-alone by powering it from the IBM 4-pin peripheral connector. In this case a terminal or terminal-emulator is attached to the serial connector.
- the board may also be inserted into any RetroBrew ECB backplane to connect to peripheral boards, including the 4MEM, DualSD, ColorVDU, VGA3, etc.
- ROMs supported may be 32Kb, 64Kb, 128Kb, or 256Kb. The current BIOS recommended is 64Kb.
- the board runs MSDOS 5.0 or MSDOS 6.22.

Dimensions PCB ( Length × Width × Height ): 100 mm x 100 mm x 1,6 mm
Item weight:  55 g