
4 Introduction
1.3 Specifications
Programmable Counter/Timer
Device :
8254 x 2 (default), or 8254 x 4 (at most)
Counters :
16-bit down counter
Clock source :
internal clock, external source or cascaded
Gate control :
default enable or external control
Digital I/O (DIO)
# of input channels : 16 channels
# of output channels :
8 channels (dedicated output)
Electronics characteristics : TTL compatible signal
General Specifications
I/O Base Address :
8 consecutive address space
Interrupt IRQ :
IRQ 3, ..., IRQ 15 (9 levels jumper selectable)
Connector :
37-pin D-type female connector
Operating Temperature : 0 C ~ 60 C
Storage Temperature : -20 C ~ 80 C
Humidity :
5 ~ 95, non-condensing
Power Consumption :
+5 V @ 210 mA maximum
Dimension :
163mm(L) X 108mm(W)
Comentários a estes Manuais