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VESA Local Bus Connector

VESA Local Bus (VL-Bus) is a 32-bit extension of the ISA bus running at CPU speed (25-40 MHz) for video cards in 486-era PCs, using a 116-pin connector that extends beyond the ISA slot.

// connector diagram 7 pins
// loading diagram...
// Specifications
Standard
VESA VL-Bus 2.0
Data Bus
32-bit
Speed
33 MHz or 40 MHz at CPU speed
Status
Obsolete replaced by PCI
Pin Count
116 (ISA 98 + 18 extension)
Use Case
486 era VGA cards disk controllers
// Pin Reference Table
PinNameFunctionType
1 D0 Data bus bit 0 I/O
2 D1 Data bus bit 1 I/O
32 D31 Data bus bit 31 I/O
33 A0 Address bit 0 I/O
34 A31 Address bit 31 I/O
101 +5V 5V power PWR
102 GND Ground GND

VESA Local Bus (VL-Bus) is a 32-bit extension of the ISA bus running at CPU speed (25-40 MHz) for video cards in 486-era PCs, using a 116-pin connector that extends beyond the ISA slot.