AS4DDR264M72PBG-3/ET

DDR2 SDRAM memory chip, 4.5 Gbit density, organized as 64Mx72 for a 72-bit data bus width. Features a maximum clock rate of 667 MHz, 8 internal banks with 8M words per bank, and a 16-bit address bus. Packaged in a 255-pin BGA (Ball Grid Array) with a 1.27 mm pin pitch, supporting surface mount installation. Operates at a typical 1.8V supply voltage, with a maximum access time of 0.45 ns, and a wide operating temperature range from -55°C to 125°C.