DESCRIPTION

The IDT72V3682/72V3692/72V36102 are 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 16,384/32,768/65,536 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:

IDT72V3682 – 16,384 x 36 x 2

IDT72V3692 – 32,768 x 36 x 2

IDT72V36102 – 65,536 x 36 x 2

• Supports clock frequencies up to 100MHz

• 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 in space-saving 120-pin Thin Quad Flatpack (TQFP)

• Pin compatible to the lower density parts, IDT72V3622/72V3632/72V3642/72V3652/72V3662/72V3672

• Industrial temperature range (–40°C to +85°C) is available