LH540215 datasheet(29/48 Pages) SHARP

29 / 48 page

540215-13

WCLK

WEN

q + 1 words

in FIFO

q words in FIFO

REN

RCLK

PAE

NOTE:

1. PAE offset = q. Also, number of data words written into FIFO already = q.

tCLKH

tCLKL

tENS

tENH

tENS

tPAE

Figure 14. Programmable-Almost-Empty Flag Timing,

IDT-Compatible Operating Mode

TIMING DIAGRAMS (cont’d)

512 x 18/1024 x 18 Synchronous FIFO

LH540215/25

29

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