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特性

  • 10 ns read/write cycle time
  • Read and Write Clocks can be independent
  • Dual-Ported zero fall-through time architecture
  • Empty and Full Flags signal FIFO status
  • Programmable Almost-Empty and Almost-Full flags can be set to any depth
  • Programmable Almost-Empty and Almost-Full flags default to Empty+7, and Full-7, respectively
  • Output enable puts output data bus in high-impedance state
  • Available in 32-pin PLCC and 32-pin TQFP packages
  • Industrial temperature range (–40C to +85C) is available

描述

The 72421SyncFIFO™ is a 64 x 9 First-In, First-Out memory with clocked read and write controls. This FIFO is useful for a wide variety of data buffering needs such as graphics, local area networks and interprocessor communication. These FIFOs have 9-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.

产品参数

属性
Core Voltage (V)5
Bus Width (bits)9
Density (Kb)1
Pkg. CodePR32
InterfaceSynchronous
I/O Type5.0 V TTL
I/O Frequency (MHz)100 - 100
Organization64 x 9
Temp. Range (°C)0 to 70°C
ArchitectureUni-directional

封装选项

Pkg. TypePkg. Dimensions (mm)Lead Count (#)Pitch (mm)
TQFP7.0 x 7.0 x 1.4320.8
Part NumberStatusSamplesStockPackageLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeMoisture Sensitivity Level (MSL)
72421L10PFG8ActiveN/AOut of StockTQFP32#CYesReel3
72421L10JObsoleteN/AOut of StockPLCC32#CNoTube1
72421L10J8ObsoleteN/AOut of StockPLCC32#CNoReel1
72421L10PFObsoleteN/AOut of StockTQFP32#CNoTray3
72421L10PF8ObsoleteN/AOut of StockTQFP32#CNoReel3
72421L10PFGObsoleteN/AOut of StockTQFP32#CYesTray3
72421L15JObsoleteN/AOut of StockPLCC32#CNoTube1
72421L15J8ObsoleteN/AOut of StockPLCC32#CNoReel1
72421L15JIObsoleteN/AOut of StockPLCC32#INoTube1
72421L15JI8ObsoleteN/AOut of StockPLCC32#INoReel1
72421L15PFObsoleteN/AOut of StockTQFP32#CNoTray3
72421L15PF8ObsoleteN/AOut of StockTQFP32#CNoReel3
72421L15PFIObsoleteN/AOut of StockTQFP32#INoTray3
72421L15PFI8ObsoleteN/AOut of StockTQFP32#INoReel3
72421L25JObsoleteN/AOut of StockPLCC32#CNoTube1
72421L25J8ObsoleteN/AOut of StockPLCC32#CNoReel1
72421L25JIObsoleteN/AOut of StockPLCC32#INoTube1
72421L25JI8ObsoleteN/AOut of StockPLCC32#INoReel1
72421L25PFObsoleteN/AOut of StockTQFP32#CNoTray3
72421L25PF8ObsoleteN/AOut of StockTQFP32#CNoReel3
72421L25PFIObsoleteN/AOut of StockTQFP32#INoTray3
72421L25PFI8ObsoleteN/AOut of StockTQFP32#INoReel3
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