Abstract: A multichip synchronization system may include a master chip communicatively coupled to at least one slave chip. The master chip and the slave chip may each include data lanes, memories, and a counter that increments at each clock cycle. The master chip may align its data lanes and, upon completion thereof, may buffer the data lanes into its memories, transmit a synchronization signal to the slave chip, and initiate its counter. The master chip may release its memories when the counter reaches a synchronization window value. The slave chip may align its data lanes and, upon completion thereof, may buffer the data lanes into its memories. The slave chip may initiate its counter upon reception of the synchronization signal from the master chip, and may release its memories when the counter reaches the synchronization window value.