DESCRIPTION:
The IDT72205LB/72215LB/72225LB/72235LB/72245LB are very high-speed, low-power First-In, First-Out (FIFO) memories with clocked read and write controls.
   
FEATURES:
• 256 x 18-bit organization array (IDT72205LB)
• 512 x 18-bit organization array (IDT72215LB)
• 1,024 x 18-bit organization array (IDT72225LB)
• 2,048 x 18-bit organization array (IDT72235LB)
• 4,096 x 18-bit organization array (IDT72245LB)
• 10 ns read/write cycle time
• Empty and Full flags signal FIFO status
• Easily 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
• High-performance submicron CMOS technology
• Available in a 64-lead thin quad flatpack (TQFP/STQFP)
    and plastic leaded chip carrier (PLCC)
• Industrial temperature range (–40°C to +85°C) is available