Description
September 2007 www.DataSheet4U.com HYB18H256321BF *11/12/14 HYB18H256321BF *10 256-Mbit GDDR3 Graphics RAM GDDR3 Graphics RAM RoHS com.
The Qimonda 256-Mbit GDDR3 Graphics RAM is a high speed memory device, designed for high bandwidth intensive applications like PC graphics systems.
Features
* Data mask for write commands
* Single ended READ strobe (RDQS) per byte. RDQS edgealigned with READ data
* Single ended WRITE strobe (WDQS) per byte. WDQS center-aligned with WRITE data
* DLL aligns RDQS and DQ transitions with Clock
* Programmable IO interf
Applications
* like PC graphics systems. The chip’s 4 bank architecture is optimized for high speed. HYB18H256321BF uses a double data rate interface and a 4n-pre fetch architecture. The GDDR3 interface transfers two 32 bit wide data words per clock cycle to/from the I/O pins. Corresponding to the 4n-pre fetch a s
