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DDR4 multiPHY in TSMC
Synopsys DesignWare® DDR4 multiPHY IP cores are mixed-signal PHY IP cores that supply the complete physical interface to JEDEC standard DDR4, DDR3, LPDDR2, and LPDDR3 SDRAM memories. The DDR4 multiPHY IP supports DDR4 SDRAM speeds from DDR4-1333 through DDR4-2667, DDR3 SDRAM speeds from DDR3-666 to DDR3-2133, LPDDR2 SDRAMs from 0 to 1066 Mbps and LPDDR3 SDRAMs from 0 to 2133 Mbps. The DDR4 multiPHY IP cores are compiled into a hard macro that is optimized for specific foundry nodes. Each DDR4 multiPHY is constructed from the following libraries of components: the application specific SSTL I/O library, a single address/command macro block, multiple byte wide data macro blocks instantiated as many times as required to accommodate the memory channel width, and separate PLL macrocells that directly abut to the address/command macro block and data macro blocks.
A key component of the DesignWare DDR4 multiPHY is the extensive in-system data training/calibration capability used to maximize the overall timing budget and improve system reliability. The DesignWare DDR4 multiPHY contains calibration circuits for read data eye training (optimizes and maintains the optimal DQS offset into the center of the read data eye), write data eye training (optimizes and maintains the optimal DQS offset into the center of the write data eye), per-bit deskew training (minimizes bit to bit timing skew for reads and writes independently), DDR3 write leveling, and DDR3 read leveling. The DDR4 multiPHY also supports per-bit deskew calibration of the address/command bus for LPDDR3 SDRAMs and VREF level training for DDR4 SDRAMs.
A key component of the DesignWare DDR4 multiPHY is the extensive in-system data training/calibration capability used to maximize the overall timing budget and improve system reliability. The DesignWare DDR4 multiPHY contains calibration circuits for read data eye training (optimizes and maintains the optimal DQS offset into the center of the read data eye), write data eye training (optimizes and maintains the optimal DQS offset into the center of the write data eye), per-bit deskew training (minimizes bit to bit timing skew for reads and writes independently), DDR3 write leveling, and DDR3 read leveling. The DDR4 multiPHY also supports per-bit deskew calibration of the address/command bus for LPDDR3 SDRAMs and VREF level training for DDR4 SDRAMs.
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SDRAMs such as DDR, LPDDR, and HBM offer unique advantages for automotive, artificial intelligence (AI), cloud, and mobile applications. However, the selected memory solution impacts the performance, power, and area requirements of SoCs, making it important to choose the right memory technology and interface IP for the target design. Meet your specific design targets by using Synopsys’ high-performance, silicon-proven DDR memory interface IP solutions compliant with the latest JEDEC standards.