72V845中文资料4K x 18 DualSync FIFO, 3.3V数据手册Renesas规格书

描述 Description

The 72V845 is a 4K x 18 dual sync FIFO with clocked read and write controls that is functionally equivalent to two 72V245 FIFO's in a single package with all associated control, data, and flag lines assigned to independent pins. This FIFO is useful for optical disk controllers, Local Area Networks (LANs), and interprocessor communication. Each of the two FIFOs has an 18-bit input and output port. 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.

特性 Features

Optimal combinationcapacity , speed and design flexibility in a small footprint
10 ns read/write cycle time
5V input tolerant
IDT Standard or First Word Fall Through timing
Single or double register-buffered Empty and Full Flags
Easily expandable in depth and width
Asynchronous or coincident Read and Write Clocks
Asynchronous or synchronous programmable Almost-Empty and Almost-Full flags with default settings
Half-Full flag capability
Output enable puts output data bus in high-impedance state
Available in 128-pin TQFP
Industrial temperature range (–40C to +85C) is available