Semiconductor integrated circuit
AssigneeSK hynix Inc.
InventorsDong-Uk LEE, Young-Ju KIM, Keun-Soo SONG
Life of this patent
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Abstract
A semiconductor integrated circuit including first semiconductor chip and second semiconductor chip that vertically stacked, wherein the first semiconductor chip includes a first column data driving circuit configured to transmit internal data to the second semiconductor chip in a DDR (double data rate) scheme based on an internal strobe signal, and a first column strobe signal driving circuit configured to generate first column strobe signals that are source-synchronized with first column data transmitted to the second semiconductor chip by the first column data driving circuit, based on the internal strobe signal, and transmit the first column strobe signals to the second semiconductor chip.
Claims18
1-44. (canceled)
A semiconductor integrated circuit including at least one master chip and at least one slave chip that are stacked,
- the master chip being configured to transmit write data inputted from an outside and differential write strobe signals source-synchronized with the write data, to the slave chip based on a first internal strobe signal, and receive and output to the outside read data transmitted from the slave chip, based on first differential alignment strobe signals which are provided from the slave chip and are generated by delaying differential read strobe signals source-synchronized with the read data, by a given delay time, and
- the slave chip being configured to transmit the read data provided from an inside thereof and the differential read strobe signals, to the master chip in based on a second internal strobe signal, and store therein the write data transmitted from the master chip, based on second differential alignment strobe signals which are generated by delaying the differential write strobe signals by the given delay time.
Dependencies are inferred from the claim text.