GDDR6/6X

圖形雙倍數據速率 (GDDR) 是一種現代類型的同步圖形随機存取存儲器(qì) (SGRAM)，具有高帶寬 DDR 接口，專為顯卡、遊戲機和(hé)高性能計算而設計。 GDDR 6和(hé)GDDR 6X 是目前帶寬最高的 GDDR 内存解決方案，與 GDDR5 相比，能夠支持更高的每引腳帶寬（GDDR6X 高達 24Gbps，GDDR6 高達 16Gbps）、更低的工作電壓（1.35V）、更高的性能和(hé)更低的功耗。


Innosilicon GDDR6 PHY 是世界上第一個(gè)經過芯片驗證的商(shāng)用 GDDR6内存接口IP，包含PHY IP和(hé)控制器(qì)controller IP，完全符合 JEDEC GDDR6 (JESD250) 标準，每個(gè)引腳支持高達 16Gbps。GDDR6 接口支持 2 個(gè)通(tōng)道，每個(gè)通(tōng)道 16 位，總數據寬度為 32 位。 Innosilicon GDDR6 PHY 每引腳速度高達 16Gbps，提供高達 64GB/s 的最大帶寬。


Innosilicon GDDR6X IP 是世界上目前唯一經過芯片驗證的商(shāng)用 GDDR6X IP，包含PHY IP和(hé)控制器(qì)controller IP。Innosilicon GDDR6X PHY 使用四級脈沖幅度調制 (PAM4) 信号來提供高達84Gs的最大帶寬，它采用14nm先進 FinFET 節點，以實現領先的客戶集成。


用于 IP 核的 Innosilicon 系統感知設計方法提供了以客戶為中(zhōng)心的體驗，并具有快速的上市時間和(hé)一次性達标的質量。 Innosilicon 提供靈活的 IP 核交付，并直接與客戶合作，提供完整的系統信号和(hé)電源完整性分析，優化芯片布局。最後，客戶将收到一個(gè)帶有全套測試軟件的硬宏解決方案，用于快速啟動(dòng)和(hé)調試。


Graphics Double Data Rate (GDDR) is a modern type of Synchronous Graphics Random-Access Memory (SGRAM) with a high bandwidth DDR interface designed for use in graphics cards, game consoles, and high-performance computing. GDDR6/6X are currently the highest-bandwidth GDDR memory solutions, capable of supporting increased per-pin bandwidth (up to 24Gbps for GDDR6X, 16Gbps for GDDR6), lower operating voltages (1.35V), higher performance and lower power consumption compared to GDDR5/GDDR5X.


The Innosilicon GDDR6 PHY is the world’s first silicon proven commercial GDDR6 IP, which is fully compliant with the JEDEC GDDR6 (JESD250) standard, supporting up to 16Gbps per pin. The GDDR6 interface supports 2 channels, each with 16bits for a total data width of 32bits. With speed up to 16Gbps per pin, the Innosilicon GDDR6 PHY offers a maximum bandwidth of up to 64GB/s. And, the Innosilicon GDDR6X PHY uses four-level pulse amplitude modulation (PAM4) signaling to extract more efficiency and higher data rates, which will be available in advanced FinFET nodes for leading-edge customer integration.


The Innosilicon system-aware design methodology used for IP Cores delivers a customer focused experience with improved time-to-market and first-time-right quality. Innosilicon offers flexible delivery of IP cores and will work directly with customers to provide a full system signal and power integrity analysis to create an optimized chip layout. In the end, the customer will receive a hard macro solution with a full suite of test software for quick turn-on, characterization and debug.

KEY FEATURES:

  • Data rate up to 24Gbps for GDDR6X, 16Gbps for GDDR6

  • PAM4 (only for GDDR6X) and POD-135 compatible signaling

  • Supports both quad data rate (QDR) and double data rate (DDR) data (WCK) mode

  • Driver strength and on-die termination (ODT) auto calibration

  • Supports both Write and Read CRC

  • Per-bit TX and RX data phase adjustment

  • Internal high-performance low-jitter PLL

  • Supports both hardware and software training including WCK2CK training, command training, read training and write training

  • Dynamic eye-diagram training for Write and Read operation

  • TX de-emphasis EQ and RX DFE EQ to improve signal integrity

  • Internal VREF with DFE for data inputs, with receiver characteristics programmable per pin

  • Data bus inversion (DBI) and CA bus inversion (CABI)

  • Various low power modes

INNOSILICON ADVANTAGES:

  • World’s first silicon-proven commercial GDDR6/6X IP

  • All major processes fully covered, such as 110nm, 55nm to 28nm, 22nm, 14nm, 12nm, 8nm, 7nm, 6nm, 5nm.

  • JEDEC JESD250 standard compliant (GDDR6)

  • Offers leading performance, power, and area per terabit

  • Optional PI/SI and thermal co-design service

  • Full support from IP delivery to production

BLOCK DIAGRAM:

EXAMPLE APPLICATIONS:

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