Da converter, Digital i/o, Interrupt channel – Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG User Manual
Page 8: 4 da converter, 5 digital i/o, 6 interrupt channel
1.3.4 DA Converter
z
Channels : 2 independent
z
type : 12 bit multiplying , Analog device AD-7541
z
Linearity : +/- 1/2 bit
z
Output range : 0 to 5V or 0 to 10V jumper selected , may be used with other
AC or DC reference input. Maximum output limit +/- 10V
z
Output drive : +/- 5mA
z
settling time : 0.6 microseconds to 0.01% for full scale step
1.3.5 Digital I/O
z
Output port : 16 bits, TTL compatible
Output Low: VOL=05.Vmax @IOL = 8 mA max
Output High: VOH = 2.7Vmin @IOH = -400
µA max
z
Input port
: 16 bits, TTL compatible
Input Low: VIL=0.8V max; IIL = -0.4mA max
Input High: VIH=2.0V min; IIL = 20
µA max
1.3.6 Interrupt Channel
z
Level : 3,4,5,6,7,10,11,12,14,15, jumper selectable
z
Enable : Via control register
OME-A-822PGL/PGH Hardware Manual ---- 6