OPENEDGES, the memory system IP provider, including DDR memory controller, DDR PHY, on-chip interconnect, and NPU IP together as an integrated solution or independent IP. They are tightly combined to bring synergy for high performance and low latency. OPENEDGES' integrated IP solutions are market and silicon-proven, featuring advanced architectures and proprietary technologies that enable customers to shorten their design and verification processes.
The LPDDR5/4x/4 Combo OPHY features a state-of-art mixed-signal architecture that addresses the challenges of DRAM integration in high-performance and low-power environments. This architecture enables LPDDR5/4 Combo OPHY to overcome issues with long-term impedance drift and clock phase drift, allowing impedance and clock phase updates without interruption of data traffic. The programmable timing at the OPHY boundary combines flexibility with analog precision, resulting in low read/write latency between OMC and the LPDDR5/4x/4 DRAM without sacrificing performance.
The LPDDR5/4x/4 Combo OPHY was designed with subsystem and system-level considerations in mind. Built-in power management logic and advanced PLL design allow aggressive power state management and optimal system power usage.
At the system level, the LPDDR5/4x/4 Combo OPHY was designed to minimize package substrate layer and PCB layer requirements, enabling usage in cost-sensitive applications and application processors.
LPDDR5/4x/4 combo PHY on 14nm, 12nm
Overview
Key Features
- Compliant with JEDEC standards for LPDDR5/4x/4 with PHY standards
- DFI 5.0 Interface Compliant
- Supports 1,2, or 4 ranks
- Multiple frequency states
- PHY independent training and calibration
- Firmware based training
- Hardware or Firmware based retraining
- Proprietary microcontroller with custom ISA
- Multiple DFICLK: CK ratios and DFICLK:CK: WCK ratio
- Tx and Rx channel equalization
- Voltage and temperature tracking of timing and impedance control circuit
- Flexible floor planning/bump mapping
Benefits
- Configurability with Flexible Applications
- Cost-effective with minimal package substrate/PCB layer requirements
- High Performance
- Firmware-based training / ultra-fast fractional training
- Fast switching between FSPs
- Programmable PHY boundary timing providing low read/write latency
- Maximize capacity with channel equalization at the multi rank
- Low Power scheme using power-saving mode and multiple voltage domains
Block Diagram
Applications
- Consumer edge devices
- Digital set-top-boxes
- TVs
- SSD controllers
- Application processors
Deliverables
- Hard & Soft IP
- GDSII, LEF, LVS, timing models, etc.
- Verilog behavior models and encrypted RTL
- Synthesis and STA constraints
- Example test benches
- Documentation
- PHY Technical Reference Manual
- Implementation, package, and PCB design guidelines
- Test and characterization guidelines
- Physical verification reports
Technical Specifications
Foundry, Node
14nm,12nm
Maturity
Silicon Proven
Availability
Now