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IDT72V851
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MFG:IDT Package Cooled:QFP

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Part Number: IDT72V851

MFG: IDT

Package Cooled: QFP

Description: The IDT72V801/72V811/72V821/72V831/72V841/72V851/72V851 are dual synchronous (clocked) FIFOs. The device is functionall...

IDT72V851 General Description

The IDT72V801/72V811/72V821/72V831/72V841/72V851/72V851 are dual synchronous (clocked) FIFOs. The device is functionally equivalent two IDT72V201/72V211/72V221/72V231/72V241/72V251 FIFOs in a single package with all associated control, data, and flag lines assigned to separate pins.

Each of the two FIFOs (designated FIFO A and FIFO B) contained in the IDT72V80/72V811/72V821/ 72V831/ 72V841/72V851 has a 9-bit input data port (DA0 - DA8, DB0 - DB8) and a 9-bit output data port (QA0 - QA8, QB0 - QB8). Each input port is controlled by a free-running clock (WCLKA, WCLKB), and two Write Enable pins ( WENA1, WENA2, WENB1, WENB2). Data is written into each of the two arrays on every rising clock edge of the Write Clock (WCLKA, WCLKB) when the appropriate Write Enable pins are asserted.

The output port of each FIFO bank is controlled by its associated clock pin RCLKA, RCLKB) and two Read Enable pins ( RENA1, RENA2, RENB1, RENB2). The Read Clock can be tied to the Write Clock for single clock operation or the two clocks can run asynchronous of one another for dual clock operation. An Output Enable pin ( OEA , OEB ) is provided on the read port of each FIFO for three-state output control.

Each of the two FIFOs has two fixed flags, Empty ( EFA , EFB ) and Full ( FFA , FFB ). Two programmable flags, Almost-Empty ( PAEA , PAEB ) and Almost-Full PAFA , PAFB ), are provided for each FIFO bank to improve memory utilization. not programmed, the programmable flags default to Empty+7 for PAEA and PAEB , and Full-7 for PAFA and PAFB .

The IDT72V801/72V811/72V821/72V831/72V841/72V851 architecture lends itself to many flexible configurations such as:
• 2-level priority data buffering
• Bidirectional operation
• Width expansion
• Depth expansion

This FIFO is fabricated using IDT's high-performance submicron CMOS technology.

IDT72V851 Maximum Ratings

Symbol	Rating	Commercial	Unit
VTERM	Terminal Voltage with Respect to GND	0.5 to +5	V
TSTG	Storage Temperature	55 to +125	°C
IOUT	DC Output Current	50 to +50	mA

IDT72V851 Features

• The IDT72V801 is equivalent to two IDT72V201 256 x 9 FIFOs
• The IDT72V811 is equivalent to two IDT72V211 512 x 9 FIFOs
• The IDT72V821 is equivalent to two IDT72V221 1,024 x 9 FIFOs
• The IDT72V831 is equivalent to two IDT72V231 2,048 x 9 FIFOs
• The IDT72V841 is equivalent to two IDT72V241 4,096 x 9 FIFOs
• The IDT72V851 is equivalent to two IDT72V251 8,192 x 9 FIFOs
• Offers optimal combination of large capacity, high speed,
design flexibility and small footprint
• Ideal for prioritization, bidirectional, and width expansion applications
• 10 ns read/write cycle time
• 5V input tolerant
• Separate control lines and data lines for each FIFO
• Separate Empty, Full, programmable Almost-Empty and
Almost-Full flags for each FIFO
• Enable puts output data lines in high-impedance state
• Space-saving 64-pin plastic Thin Quad Flat Pack (TQFP/ STQFP)
• Industrial temperature range (40°C to +85°C) is available

IDT72V851 Connection Diagram

IDT72V851 datasheet

IDT72V851
PDF/DataSheet Download

Datasheet: IDT72V851
File Size: 154283 KB
Manufacturer: IDT [Integrated Device Technology]
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