发表于:2002-06-26 11:52:00
1楼
这款符合要求吗?
IBM PC/AT compatible DIO board
144 TTL/DTL digital I/O lines arranged into 8-bit ports
Emulates 8255 PPI mode 0
24mA high sink current
Capable of driving Opto-22 compatible I/O module
Software programmable for inputs/outputs
Interrupt handling
Double side SMT, short card, power saving