The IDT70T651 is a high-speed 256/128K x 36 AsynchronousDual-Port Static RAM. The IDT70T651/9 is designed to be used as astand-alone 9216/4608K-bit Dual-Port RAM or as a combination MASTER/SLAVEDual-Port RAM for 72-bit-or-more word system. Using theIDT MASTER/SLAVE Dual-Port RAM approach in 72-bit or widermemory system applications results in full-speed, error-free operationwithout the need for additional discrete logic. This device provides two independent ports with separate control,address, and I/O pins that permit independent, asynchronous access forreads or writes to any location in memory. The 70T651/9 can support an operating voltage of either 3.3V or 2.5Von one or both ports, controlled by the OPT pins. The power supply forthe core of the device (VDD) is at 2.5V.
True Dual-Port memory cells which allow simultaneous access of the same memory location