Synopsys DesignWare® DDR3/2 PHY Cores are mixed-signal PHY IP Cores that supply the complete physical interface to JEDEC standard DDR3 and DDR2 SDRAM Memories. The DDR3/2 PHY IP supports the entire range of DDR3 SDRAM speeds, from DDR3-800 through DDR3-2133, with backward compatibility provided for DDR2-667 through DDR2-1066 devices. The PHYs are compiled into a hard macro that is optimized for specific foundry nodes. Each DDR3/2 PHY is constructed from the following libraries of components: the application specific SSTL I/O library, a single Address/Command macro block and multiple byte wide data macro blocks instantiated as many times as required to accommodate the memory channel width. A key component of the DesignWare DDR3/2 PHY is the extensive in system data training/calibration capability in order to maximize the overall timing budget and improve system reliability. The DesignWare DDR3/2 PHY 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.DesignWare DDR3/2 PHY Datasheet
DesignWare DDR3/2 IP Demo at 1600 Mbps
Live from DesignCon 2010, see how the DesignWare DDR3/2 IP enables automatic timing compensation for voltage and temperature changes,
per bit deskew adjustments in the datapath, and on-chip capabilities for measuring write and read data eyes.
Graham Allan Product Marketing Manager, Memory Interface IP
When combined with a DesignWare DDR memory or protocol controller and verification IP, Synopsys provides a complete DDR3/2 interface IP solution
Scalable architecture that supports the speed range from DDR2-667 up to DDR3-2133
Support for DDR3L (1.35V DDR3)
Delivery of product as a hardened Mixed-Signal macrocell components allows precise control of timing critical delay and skew paths
Low latency
PHY Utility Bock (PUB) included as a soft IP utility that includes control features, such as write leveling and data eye training, and provides support for production testing of the DDR3/2 PHY (available with select PHYs)
DFI 2.1 compliant interface (optional)
Configurable external data bus widths between 8 and 64 bits in 8-bit increments plus ECC
Permits operating with DDR3/2 SDRAMs using data widths narrower than the compiled data width
Support for 1 to 4 memory ranks
DDR3/2 PHY-Controller interface runs at 4:1 mode (width ratio of application bus to memory data bus), simplifying core logic timing constraints
Includes the PLL and all timing circuits necessary to meet timing specifications
Write leveling timing circuits to compensate address and control versus data delays
Write and read bit timing circuits compensate per-bit delay skew of individual data bits within each data byte
Locally calibrated master and slave timing circuits minimize OCV and ACLV effects, and accommodate voltage or temperature change induced timing drift
Area optimized I/O
6 layers of metal
35um I/O pitch for 65nm
30um pitch for 40nm
Staggered I/O supported
Supports CUP (Circuit Under Pad) and (Bond Over Active)
Supports flip chip and wire bond
I/O retention mode (available with select PHYs)
Maintains I/O drive state during VDD power down
Optional CKE retention mode permits VDD and all non-essential I/Os to be powered down while retaining the external SDRAMs in self refresh mode
Advanced testability
At-speed loopback testing on both the address and data channels
Delay line oscillator test mode
MUX-scan ATPG
Optional DDR signal integrity service is available to assist customers with the integration of the PHY into their SoC, package and printed circuit board environments