Supports a 32-bit 5 V PCI bus
	On-board four 82C54 programmable timer/counter chips
	10-CH independent 16-bit down counters
	1-CH 32-bit cascaded timer
	Four programmable clock sources for each timer/counter
	Programmable de-bounce filter for external clock & external interrupt inputs
	8-CH TTL DI & 8-CH TTL DO

PCI-8554 is a 10-CH 16-bit timer/counter and digital I/O cards. It provides ten independent

timer/counters and one cascaded 32-bit timer. The clock source for each timer/counter can be software

selected from the cascaded 32-bit timer, external clock source, timer/counter output of the last channel, and

the on-board 8MHz clock. The flexible architecture makes it easy to re-configure the hardware; for

example, up to ten timer/counters can be cascaded to form a 160-bit timer/counter. The hardware can also

generate interrupts from either the external interrupt sources or the output of the cascaded 32-bit timer.

The programmable de-bounce filters provide eleven channels of glitch-filtered external clock inputs for

timer/counters and the external interrupt input. This feature further improves the reliability for counting

applications.

The PCI-8554 also provides 8-CH TTL digital inputs and 8-CH TTL digital outputs.  PCI-8554

delivers cost-effective and reliable solutions for event counting, frequency measurement, baud-rate

generation, watchdog timer, and other industrial applications.