Patent ID: 8754378

Claim:
An apparatus comprising: a first photodetector cell including: a first avalanche photodiode comprising an anode and a cathode, wherein when the first photodiode is not in a reset state a voltage on the cathode is floating, wherein the cathode of the first photodiode is directly connected to a first p-channel field effect transistor and the cathode of the first photodiode is directly connected to a n-channel field effect transistor, wherein a second p-channel field effect transistor is connected to a node of the first p-channel field effect transistor; a first circuit that senses an avalanche of the first photodiode and stores a first 1-bit digital value indicative of the sensed avalanche; a cell inhibit circuit including a six transistor static random access memory (SRAM) cell that enables an output of the stored first 1-bit digital value; a second photodetector cell including: a second avalanche photodiode; a second circuit that senses an avalanche of the second photodiode and stores a second 1-bit digital value indicative of the sensed avalanche.