DDR II SRAM for high-bandwidth memory applications
The CY7C1320JV18-300BZC is an 18Mbit Synchronous DDR II SRAM from Infineon, organized as 512K x 36 bits, clocked at 300 MHz. Operating from a 1.7V to 1.9V core supply, the part uses a parallel interface and is rated for the commercial temperature range of 0°C to 70°C — suitable for controlled indoor environments such as server racks or test equipment, not for outdoor or unheated enclosures.
Infineon lists the CY7C1320JV18-300BZC as Obsolete.
Package and layout considerations for 300 MHz operation
The 165-ball FBGA package (13x15 mm body) demands a multi-layer PCB with controlled impedance traces and local decoupling capacitors. At 300 MHz, signal-integrity margins are tight — the DDR II architecture uses both clock edges for data transfer, so clock skew and Vref noise directly affect setup/hold timing. For reflow, the moisture sensitivity level (MSL) should be verified from the latest Infineon datasheet; FBGA packages often require a bake before rework if the floor-life has been exceeded.