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Product Descriptions

The IDT7005 is a high-speed 8K x 8 Dual-Port Static RAM. The IDT7005 is designed to be used as a stand-alone DualPort RAM or as a combination MASTER/SLAVE Dual-Port RAM for 16-bit-or-more word systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 16-bit or wider memory system applications results in full-speed, error-free operation without 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 for reads or writes to any location in memory. An automatic power down feature controlled by CE permits the on-chip circuitry of each port to enter a very low standby power mode.

Fabricated using IDT’s CMOS high-performance technology, these devices typically operate on only 750mW of power. Low-power (L) versions offer battery backup data retention capability with typical power consumption of 500μW from a 2V battery.

The IDT7005 is packaged in a ceramic 68-pin PGA, a 68- pin quad flatpack, a 68-pin PLCC and a 64-pin Thin Plastic Quad Flatpack (TQFP). Military grade product is manufactured in compliance with the latest revision of MIL-STD-883, Class B, making it ideally suited to military temperature applications demanding the highest level of performance and reliability.

Product Features

? True Dual-Ported memory cells which allow simultaneous access of the same memory location 

? High-speed access 

— Military: 20/25/35/55/70ns (max.) 

— Commercial:15/17/20/25/35/55ns (max.) 

? Low-power operation 

— IDT7005S Active: 750mW (typ.) Standby: 5mW (typ.) 

— IDT7005L Active: 750mW (typ.) Standby: 1mW (typ.) 

? IDT7005 easily expands data bus width to 16 bits or more using the Master/Slave select when cascading more than one device 

? M/S = H for BUSY output flag on Master, M/S = L for BUSY input on Slave

? Busy and Interrupt Flags 

? On-chip port arbitration logic 

? Full on-chip hardware support of Semaphore signaling between ports 

? Fully asynchronous operation from either port 

? Devices are capable of withstanding greater than 2001V electrostatic discharge 

? Battery backup operation—2V data retention

? TTL-compatible, single 5V (±10 percent) power supply 

? Available in 68-pin PGA, 68-pin quad flatpack, 68-pin PLCC, and a 64-pin TQFP 

? Industrial temperature range (–40°C to +85°C) is available, tested to military electrical specifications

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