The IDT 70P3519/99 is a high-speed 1.8V 256/128K x 36 Synchronous Dual-Port Static RAM with 3.3V/2.5V/1.8V interface, and is ideal for applications ranging from industrial control to medical imaging and communications. The new 9-Mbit and 4-Mbit dual-port devices deliver 200MHz performance to satisfy demanding memory buffering requirements. By offering a 1.8V core voltage, the devices utilize significantly less power than existing solutions. The memory array utilizes Dual-Port memory cells to allow simultaneous access of any address from both ports. Registers on control, data, and address inputs provide minimal setup and hold times. The timing latitude provided by this approach allows systems to be designed with very short cycle times. With an input data register, the IDT70P3519/99 has been optimized for applications having unidirectional or bidirectional data flow in bursts. An automatic power down feature, controlled by CE0 and CE1, permits the on-chip circuitry of each port to enter a very low standby power mode. The 70P3519/99 can support an operating voltage of 3.3V, 2.5V or 1.8V on one or both ports. The power supply for the core of the device (VDD) is 1.8V.

Benefits	Features
Utilize significantly less power than existing solutions	1.8V core voltage
Allow simultaneous access of the same memory location	True dual-port memory cells
Enables depth expansion without additional logic	Dual chip enable
Significant improvement in performance and power	High-speed data access
Flexibility	Selectable pipelined or flow-through output mode
Allows customers to optimize their design for greater performance and lower power	Comprehensive range of synchronous functionality on both ports
Enable customers to manage simultaneous access to a single memory address without the need for external devices	Synchronous functions
Minimal setup and hold times allow faster time-to-market	Registers on control, data and address inputs
Optimized for devices having unidirectional or bidirectional data flow bursts	Input data registers