Includes sockets for installation of pull-up/pull-down resistors
9-pin, 2.2kOhm SIP resistors (not included with board) may be ordered separately: SP-K2.29C (please call 01462 480055 to order)
General Description
The PCI-DIO96H/SIPSCKT is a high density, logic level digital I/O board with SIP sockets already in place for installation of pull-up/pull-down resistors. The PCI-DIO96H/SIPSCKT offers 96 bits of digital I/O. It provides the I/O in 24-bit groups based on an 82C55, mode 0 emulation. Each group provides an 8-bit port A and port B, as well as an 8-bit port C that can be split into independant 4-bit port C-HI and a 4-bit port C-LO.
The digital outputs drivers are 74S244 chips and provide 64 mA sink and 15 mA source current capabilities.
The use of pull-up resistors and pull-down resistors is important if you need to set a fixed default value to keep the input value from floating.
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