Renesas Electronics Corporation Memory 70V639S10PRF8

The IDT70V639S10PRF8 is a high-speed 128K x 18 asynchronous dual-port static RAM designed for both industrial and commercial applications. It features true dual-port memory cells that allow simultaneous access to the same memory location, facilitating efficient data handling in multi-processor systems. The device operates at a maximum access time of 10 ns for commercial and 12 ns for industrial grades, making it suitable for applications requiring rapid data retrieval. This memory supports a single 3.3V (¬±150mV) power supply for core operations, with the option for 3.3V or 2.5V (¬±100mV) power supply for I/O and control signals on each port. The IDT70V639 can be configured as a stand-alone dual-port RAM or as a master/slave configuration to expand data bus width to 36 bits or more without additional logic. It includes on-chip port arbitration logic, busy and interrupt flags, and full hardware support for semaphore signaling between ports. The device is available in multiple package options, including a 128-pin Thin Quad Flatpack and a 208-ball fine pitch Ball Grid Array. It also offers an industrial temperature range of -40¬8C to +85¬8C for selected speeds. However, it is important to note that the lead finish (SnPb) is in the end-of-life process, with the last time buy expiring on June 15, 2018.