IS29GL128 NOR Flash Memory Devices ISSI IS29GL128 NOR Flash Memory Devices offer a fast page access time of 20ns with a corresponding random access time as fast as 70ns. These memory devices feature a write buffer that allows a maximum of 32 words/64 bytes to be programmed in one operation. The IS29GL128 memory devices thus offer faster effective programming time than standard programming algorithms. These memory devices are ideal for embedded applications that require higher density, better performance, and low power consumption.