SBC-85 v2 Single Board 8085 Computer
New for version 2.0 (see video) are two universal EPROM sockets provide 2x2732, 2x2764, 2x27128, or 1x27256 EPROMs, one socketed on the board and the second in a ZIF for easy swap. Note that the memory map has changed from v1.x of the CPU board so programs will need to be re assembled/compiled. The v2.x memory map is on the schematic and user's manual on the project website.
The SBC-85 CPU board is a 100mm x 100mm 2-layer with a 120 pin edge connector (mechanically PCI). The serial SID and SOD lines, via a max232, offer a RS232 serial port for communication with a resident monitor or whatever you may decide to put in firmware. The 120 expansion bus includes power, all of the 8085 status and system signals, latched address bus, and many more unused terminals for future or other board-to-board signals.
RAM is provided by a 64-kBit 6264 and an additional 2kbit in the 8155. In addition to the additional RAM, the 8155 provides an onboard timer and 22 pins of I/O.
Power is provided by an external regulated 5V power supply through either the barrel connector or the backplane.
Other boards including the backplane, cassette interface, prototyping board, bus monitor are also available.
Please visit the project website for more details on the system including documentation.
SBC-85 v2 Single Board 8085 Computer
*PCBWay community is a sharing platform. We are not responsible for any design issues and parameter issues (board thickness, surface finish, etc.) you choose.
- Comments(0)
- Likes(1)
More by Craig
-
STD Bus Pad Per Hole Prototyping Board
Some 45 years later the STD Bus remains a great platform for vintage computer hobbyists. This protot...
-
STD Bus 8085 Single Board computer
The STD Bus was one of the greatest industrial busses of all time, was incredibly flexible, enjoyed ...
-
SBC-85 Expansion Memory Board
New for Version 1.0a The 'access' LEDs are now latched so they extend for one bus read cycle, i.e., ...
-
SBC-85 Serial- Parallel I/O board
The board has four I/O devices:An Intel 8255 PPI which provides three, 8-bit programmable I/O ports;...
-
SBC-85 1Mbit Magnetic Bubble Memory Board
1 Megabit magnetic bubble memory board addition to the SBC-85 FamilyNOTE: This board is for the 20-p...
-
SBC-3870 Development board for Mostek 38P70 F8 processor
The 38P70 is the 2nd Generation of the original Fairchild F8.This is a PROTOTYPE board, it has been ...
-
SBC-85 v2 Single Board 8085 Computer
New for version 2.0 (see video) are two universal EPROM sockets provide 2x2732, 2x2764, 2x27128, or ...
-
SBC-85 8085 Bus Monitor with Single Step, Binary and Hexadecimal display, Breakpoints
Short of an in circuit emulator, the bus monitor is one of the most powerful diagnostic tools.The bu...
-
SBC-85 Cassette Tape Data Storage Interface Board
Among the standard cassette tape interfaces like Tarbell and the Kansas City, Intel developed an int...
-
SBC-85 Pad-per-hole Prototyping Board
One tool for a healthy hardware user group is the ability for the users to create, invent, and contr...
-
SBC-85 Backplane-4
The 8085 based SBC-85 was designed with an expansion bus having all 16 bits of the address, data bit...
-
8085 Single Board Computer System SBC-85 CPU v1.1
This version has been updated to SBC-85 v2 which has universal EPROM sockets and other enhancements....
-
-
-
-
Tester for Touch Screen Digitizer without using microcontroller
230 2 2 -
Audio reactive glow LED wristband/bracelet with NFC / RFID-Tags
238 0 1 -
-
-
