A memory system has first, second and third interconnects and an
integrated circuit memory device coupled to the interconnects. The second
interconnect conveys a write command and a read command. The third
interconnect conveys write data and read data. The integrated circuit
memory device includes a pin coupled to the first interconnect to receive
a clock signal. The memory device also includes a first plurality of pins
coupled to the second interconnect to receive the write command and read
command, and a second plurality of pins coupled to the third interconnect
to receive write data and to assert read data. Control information is
applied to initiate the write operation after a first predetermined delay
time transpires from when the write command is received. During a clock
cycle of the clock signal, two bits of read data are conveyed by each pin
of the second plurality of pins.