INTERNATIONAL GROUND SHIPPING: 
[General]
I/O Channel 64TTL input/output line (8 port)
Input Buffer 74HCT244 with 4.7K Ohm pull up
resistors
Output Driver 74HCT273, Maximum sink current -
24mA, Maximum source current - 16Ma
I/O addresses Base port switch selectable from 0 to
3F8 hex with increments of 8
Power Consumption +5VDC @ 120mA maximum ( all
output is low )
Dimension 175mm x 109mm
Operating Temperature 0~50°C(32~122°F)
Storage Temperature 20~70°C(-4~158°F)
Operating Humidity 0% ~ 90% Relative humidity
non-condensing
Applications
1. Interfacing with parallel I/O device
1. Interfacing with parallel I/O device
2. Factory monitoring and control
3. TTL signal or switch status sensing
4. Light indications and digital output control
