IS43/46TR 1-Gbit DDR3 SDRAM with ECC ISSI IS43/46TR 1-Gbit DDR3 SDRAM with ECC delivers high-speed data transfer rates with frequencies up to 800MHz. Embedded Error Correcting Code (ECC) ensures little to no error tolerance. ECC detects and corrects bit errors on-the-fly and requires no monitoring or intervention to use. These IS43/46TR 1-Gbit DDR3 SDRAM with ECC operate at 1.5V ±0.075V.