DESCRIPTION:
The IDT72V3622/72V3632/72V3642 are functionally compatible versions of the IDT723622/723632/723642, designed to run off a 3.3V supply for exceptionally low-power consumption. These devices are monolithic, high-speed, low-power, CMOS Bidirectional SyncFIFO (clocked) memories which support clock frequencies up to 100MHz and have read access times as fast as 6.5ns. Two independent 256/512/1,024 x 36 dual-port SRAM FIFOs on board each chip buffer data in opposite directions. Communication between each port may bypass the FIFOs via two 36-bit mailbox registers. Each mailbox register has a flag to signal when new mail has been stored.

FEATURES:
• Memory storage capacity:
    IDT72V3622 – 256 x 36 x 2
    IDT72V3632 – 512 x 36 x 2
    IDT72V3642 – 1,024 x 36 x 2
• Supports clock frequencies up to 100 MHz
• Fast access times of 6.5ns
• Free-running CLKA and CLKB may be asynchronous or coincident (simultaneous reading and writing of data on a single clock edge is permitted)
• Two independent clocked FIFOs buffering data in opposite directions
• Mailbox bypass register for each FIFO
• Programmable Almost-Full and Almost-Empty flags
• Microprocessor Interface Control Logic
• FFA/IRA, EFA/ORA, AEA, and AFA flags synchronized by CLKA
• FFB/IRB, EFB/ORB, AEB, and AFB flags synchronized by CLKB
• Select IDT Standard timing (using EFA, EFB, FFA and FFB flags functions) or First Word Fall Through timing (using ORA, ORB, IRA and IRB flag functions)
• Available space-saving 120-pin Thin Quad Flatpack (TQFP)
• Functionally compatible to the 5V operating IDT723622/723632/723642
• Industrial temperature range (–40οC to +85οC) is available
• Green parts available, see ordering information