The present invention discloses a digital self-timed timer for measuring the passage of time; a digital self-timed pulse generator for generating both continuous and finite pulse sequences; and a digital self-timed data receiver for recovering data from an asynchronous, two-wire bit-channel. Being self-timed, a disclosed self-timed timer measures time as a function of logic delays incurred while executing a sequence of internal state transitions. A pulse generator supports both a triggered pulse mode and continuous clock generation; pulse widths and pulse intervals are programmable. A data receiver may recover a data bit from each received two-bit code word and outputs recovered data and an associated write strobe for each recovered datum.