82C54 CMOS Programmable Interval Timer, Intersil. 8 MHz to 12 MHz Clock Input Frequency Three Independent 16-Bit Counters Six Programmable Counter Modes Status Read Back Command Binary or BCD Count...
82C54 CMOS Programmable Interval Timer, Intersil. 8 MHz to 12 MHz Clock Input Frequency Three Independent 16-Bit Counters Six Programmable Counter Modes Status Read Back Command Binary or BCD Count...