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IDT72511

Integrated Device Technology
Part Number IDT72511
Manufacturer Integrated Device Technology
Description PARALLEL BIDIRECTIONAL FIFO 512 x 18 & 1024 x 18
Published Apr 4, 2005
Detailed Description PARALLEL BIDIRECTIONAL FIFO 512 x 18 & 1024 x 18 Integrated Device Technology, Inc. IDT72511 IDT72521 FEATURES: • Two ...
Datasheet PDF File IDT72511 PDF File

IDT72511
IDT72511


Overview
PARALLEL BIDIRECTIONAL FIFO 512 x 18 & 1024 x 18 Integrated Device Technology, Inc.
IDT72511 IDT72521 FEATURES: • Two side-by-side FIFO memory arrays for bidirectional data transfers • 512 x 18-Bit - 512 x 18-Bit (IDT72511) • 1024 x 18-Bit - 1024 x 18-Bit (IDT72521) • 18-bit data buses on Port A side and Port B side • Can be configured for 18-to-18-bit or 36-to-36-bit communication • Fast 35ns access time • Fully programmable standard microprocessor interface • Built-in bypass path for direct data transfer between two ports • Two fixed flags, Empty and Full, for both the A-to-B and the B-to-A FIFO • Two programmable flags, Almost-Empty and Almost-Full for each FIFO • Programmable flag offset can be set to any depth in the FIFO • Any of the eight flags can be assigned to four external flag pins • Flexible reread/rewrite capabilities • Six general-purpose programmable I/O pins • Standard DMA control pins for data exchange with peripherals • 68-pin PGA and PLCC packages DESCRIPTION: The IDT72511 and IDT72521 are highly integrated first-in, first-out memories that enhance processor-to-processor and processor-to-peripheral communications.
IDT BiFIFOs integrate two side-by-side memory arrays for data transfers in two directions.
The BiFIFOs have two ports, A and B, that both have standard microprocessor interfaces.
All BiFIFO operations are controlled from the 18-bit wide Port A.
Port B is also 18 bits wide and can be connected to another processor or a peripheral controller.
The BiFIFOs have a 9-bit bypass path that allows the device connected to Port A to pass messages directly to the Port B device.
Ten registers are accessible through Port A, a Command Register, a Status Register, and eight Configuration Registers.
The IDT BiFIFO has programmable flags.
Each FIFO memory array has four internal flags, Empty, Almost-Empty, Almost-Full and Full, for a total of eight internal flags.
The Almost-Empty and Almost-Full flag offsets can be set to any depth through the Config...



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