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72245 - Block Diagram

72245

4K x 18 SyncFIFO, 5.0V

The 72245 is a 4K x 8 First-In, First-Out memory with clocked read and write controls and would be useful for a wide variety of data buffering needs, such as optical disk controllers, Local Area Networks (LANs), and interprocessor communication. These FIFOs have 18-bit input and output ports. 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. These devices are depth expandable using a Daisy-Chain technique.

Features

  • 10 ns read/write cycle time
  • Empty and Full flags signal FIFO status
  • Easy expandable in depth and width
  • Asynchronous or coincident read and write clocks
  • Programmable Almost-Empty and Almost-Full flags with default settings
  • Half-Full flag capability
  • Dual-Port zero fall-through time architecture
  • Output enable puts output data bus in high-impedance state
  • Available in 64-pin TQFP, STQFP and 68-pin PLCC packages
  • Industrial temperature range (–40C to +85C) is available

Product Specification

Core Voltage (V)Bus Width (bits)Density (Kb)Pkg. CodeInterfaceI/O TypeI/O Frequency (MHz)Cycle Time (ns)OrganizationTemp. RangeArchitectureAccess Time (ns)
51864PL68, PP64, PN64, PNG64, PLG68Synchronous5.0 V TTL40.00, 66.00, 100.004K x 18-40 to 85°C, 0 to 70°CUni-directional

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
72245LB10JActivePL68PLCC68CNoTubeCheck Availability
72245LB10J8ActivePL68PLCC68CNoReelCheck Availability
72245LB10JGActivePLG68PLCC68CYesTubeCheck Availability
72245LB10JG8ActivePLG68PLCC68CYesReelCheck Availability
72245LB10PFActivePN64TQFP64CNoTrayCheck Availability
72245LB10PF8ActivePN64TQFP64CNoReelCheck Availability
72245LB10PFGActivePNG64TQFP64CYesTrayCheck Availability
72245LB10PFG8ActivePNG64TQFP64CYesReelCheck Availability
72245LB10TFActivePP64TQFP64CNoTrayCheck Availability
72245LB10TF8ActivePP64TQFP64CNoReelCheck Availability
72245LB15JActivePL68PLCC68CNoTubeCheck Availability
72245LB15J8ActivePL68PLCC68CNoReelCheck Availability
72245LB15JGIActivePLG68PLCC68IYesTubeCheck Availability
72245LB15JGI8ActivePLG68PLCC68IYesReelCheck Availability
72245LB15JIActivePL68PLCC68INoTubeCheck Availability
72245LB15JI8ActivePL68PLCC68INoReelCheck Availability
72245LB15PFActivePN64TQFP64CNoTrayCheck Availability
72245LB15PF8ActivePN64TQFP64CNoReelCheck Availability
72245LB15PFIActivePN64TQFP64INoTrayCheck Availability
72245LB15PFI8ActivePN64TQFP64INoReelCheck Availability
72245LB15TFActivePP64TQFP64CNoTrayCheck Availability
72245LB15TF8ActivePP64TQFP64CNoReelCheck Availability
72245LB15TFIActivePP64TQFP64INoTrayCheck Availability
72245LB15TFI8ActivePP64TQFP64INoReelCheck Availability
72245LB25JActivePL68PLCC68CNoTubeCheck Availability
72245LB25J8ActivePL68PLCC68CNoReelCheck Availability
72245LB25JIActivePL68PLCC68INoTubeCheck Availability
72245LB25JI8ActivePL68PLCC68INoReelCheck Availability
72245LB25PFActivePN64TQFP64CNoTrayCheck Availability
72245LB25PF8ActivePN64TQFP64CNoReelCheck Availability
72245LB25PFIActivePN64TQFP64INoTrayCheck Availability
72245LB25PFI8ActivePN64TQFP64INoReelCheck Availability
72245LB25TFActivePP64TQFP64CNoTrayCheck Availability
72245LB25TF8ActivePP64TQFP64CNoReelCheck Availability
72245LB25TFIActivePP64TQFP64INoTrayCheck Availability
72245LB25TFI8ActivePP64TQFP64INoReelCheck Availability

Documents

Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
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72205LB-72245LB Data Sheet Datasheet PDF 333 KB Mar 22, 2013
Apps Notes & White Papers
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AN-83: Width Expansion of SyncFIFOs Application Note PDF 73 KB Jul 31, 2006
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AN-60: Designing with the IDT SyncFIFO . . . Application Note PDF 312 KB May 12, 2006
PCNs & PDNs
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PCN# : A1606-02 Add Greatek Taiwan as Alternate Assembly Product Change Notice PDF 567 KB Aug 26, 2016
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PCN# : TB1504-01R1 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 95 KB Oct 22, 2015
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PCN# : TB1504-01 Qty per Reel Standardization for Selective Packages Product Change Notice PDF 50 KB Jul 21, 2015
show all (27)
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PCN# : TB1304-01 Change of Moisture Sensitive Level on Selective Products Product Change Notice PDF 129 KB May 13, 2013
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PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB Nov 14, 2012
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PCN# : A1105-04 ADD CRM1076WA AS AN ALTERNATE DIE ATTACH EPOXY Product Change Notice PDF 84 KB Oct 25, 2011
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PCN# W1002-01(R5) Product Change Notice PDF 820 KB Jun 22, 2011
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PCN# W1002-01(R4) Product Change Notice PDF 377 KB Oct 5, 2010
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PCN# : A0811-01 ALTERNATE ASSEMBLY FACILITIES FOR SELECTIVE TQFP PACKAGES Product Change Notice PDF 469 KB Mar 23, 2009
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PCN# : TB0902-01 TRACEABILITY MARK ON TOP OF PACKAGE Product Change Notice PDF 1023 KB Mar 3, 2009
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PCN A0811-02 ADDING CHIPMOS ALTERNATE ASSEMBLY FOR TQFP PACKAGES Product Change Notice PDF 445 KB Jan 6, 2009
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PCN# A-0607-06 MMT Thailand as Alternate Assembly Facility for PLCC, SOIC 150mil/300mil Product Change Notice PDF 223 KB Oct 6, 2006
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A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB May 10, 2006
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PCN#: TB-0512-01 Reel Color Changed from Blue to Black Product Change Notice PDF 729 KB Dec 16, 2005
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PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB Jul 19, 2005
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PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB Dec 14, 2004
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PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB Oct 10, 2003
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PCN#: A-0309-04, new mold compound G600 material Product Change Notice PDF 134 KB Oct 7, 2003
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PCN#G-0302-05, New mold compound EME-G700 series Product Change Notice PDF 65 KB Mar 20, 2003
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PCN#: G-0302-06, New die attach 3230 from Ablestik Product Change Notice PDF 150 KB Mar 20, 2003
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PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB Jun 17, 2002
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PCN# F0202-04R1: Wafer Fabrication Site Change Product Change Notice PDF 50 KB Jun 1, 2002
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PCN# G-0110-06 REV.1 Mold Compound Product Change Notice PDF 48 KB Apr 26, 2002
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PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB Apr 16, 2002
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PCN# G-0110-06 Mold Compound Product Change Notice PDF 47 KB Dec 14, 2001
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PCN# G0106-01, Moisture Sensitive Label Change Product Change Notice PDF 274 KB Jun 11, 2001
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PCN# G9911-05, To qualify low alpha mold compound. Product Change Notice PDF 44 KB Nov 18, 1999

Software & Tools

Title Type Format File Size Datesort icon
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72245 HSPICE Model - HSPICE application/x-tar 32 KB Jun 29, 1999
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72245 IBIS Model - IBIS ZIP 10 KB Jun 29, 1999