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~ National ~ Semiconductor - Al Kossow's Bitsavers

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4.0 Electrical Specifications (Continued)<br />

Fast Buffered Write of OMEM<br />

Symbol 10# Parameter Formula Min Max Units<br />

tSU-RW-CO 1 RAE, REM-WR Falling before ClK-OUT Rising 14 ns<br />

tH-RW-X 2 RAE, REM-WR Rising after XACK Rising 0 ns<br />

tSU-CMO-CO 3 CMD Valid before ClK-OUT Falling 0 ns<br />

tH-CMO-CO 4 CMD Invalid after ClK-OUT Falling 35 ns<br />

tpO-RW-X 5 RAE, REM-WR Falling to XACK Falling 40 ns<br />

tpO-X-WR 6 XACK Rising to WRITE Rising 1 ns<br />

IpO-WR-X 7 WRITE Falling to XACK Rising (now+1)T+ -31 ns<br />

tZA-LCL-AAO 8 A, AD Disabled before lCl Rising 2 ns<br />

IAZ-LCL-AAO 9 A, AD Enabled before lCl Falling 17 ns<br />

tW-WR 10 WRITE low (now+1)T+ -12 ns<br />

Note 1: <strong>Al</strong>l parameters are individually tested and guaranteed. Interpreting this data by numerically adding two or more parameters to create a new timing<br />

specification may lead to invalid results.<br />

ClK-OUT<br />

Fast Buffered Write of OMEM<br />

RAE<br />

CMD<br />

REM-WR<br />

0BG)<br />

-<br />

~=d<br />

-- I-CD - CD -<br />

~0..:j<br />

XACK \:<br />

- -0<br />

lCl ~<br />

-0--<br />

WRITE<br />

AD,A<br />

-) -0<br />

-@-<br />

jl.<br />

-~<br />

TL/F 19336-75<br />

2-86

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