LB Backplane Computer

Features

• 24-bit address support
• 8 bit data
• Backplane, CPU, Memory, I/O cards

Backplane

• 6 slot backplane
• 64 connections
  • 2 power, 2 ground pins
  • 10 expansion pins
  • 0.6" slot spacine
• Optional "light" terminators
• Power connections via 2x8 header
• 100x100mm card
• (6) 4-40 mounting holes

LB-65CXX-01

• 65C02 or 65C816 CPU
• Oscillator on card
• Reset switch/power monitor
• Address decoder PLD drives RAM/ROM/IO chip selects
• 100x50mm card

LB-6809-01

• 65C02 or 65C816 CPU
• Oscillator on card
• Reset switch/power monitor
• Decoder PLD
• 100x50mm card

LB-Z80-01

• Z80 CPU
• Oscillator on card
• Reset switch/power monitor
• Decoder PLD
• 100x50mm card

LB-68B50-01

• 68B50 UART
• Baud Rate Clock (38.4k baud oscillator)
• XIAO RP2040 CPU
  • USB/Serial
• 8-bit parallel port expander
  • SD card
• 100x50mm card

LB-LOGIC-01

• Not required for BASIC computer
• PSoC 5LP CPU
• USB/Serial
• 8 I/O pins
• 3.3V/5V operation
• Connects to all backplane pins
• Reset Switch
• 100x50mm

LB-MEM-02

• Up to 1MB
• Supports smaller SRAMs
  • Headers to jump for smaller cards
• Connects to Address/Data and Memory control lines
• 50x75mm card

LB-MEM-03

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