X28HT512 datasheet(6/13 Pages) XICOR

6 / 13 page

X28HT512

A.C. CHARACTERISTICS (Over the recommended operating conditions, unless otherwise specified.)

Read Cycle

Notes: (3) tLZ min., tHZ, tOLZ min., and tOHZ are periodically sampled and not 100% tested. tHZ max. and tOHZ max. are measured, with

CL = 5pF from the point when CE or OE return HIGH (whichever occurs first) to the time when the outputs are no longer driven.

Read Cycle Limits

X28HT512-20 X28HT512-25

Symbol

Parameter

Min.

Max.

Min.

Max.

Units

tRC

Read Cycle Time

200

250

tCE

Chip Enable Access Time

200

250

tAA

Address Access Time

200

250

tOE

Output Enable Access Time

tLZ(3)

CE LOW to Active Output

tOLZ(3)

OE LOW to Active Output

tHZ(3)

CE HIGH to High Z Output

tOHZ(3)

OE HIGH to High Z Output

tOH

Output Hold from Address Change

6614 PGM T09.1

6614 FHD F05

tCE

tRC

ADDRESS

DATA VALID

tOE

tLZ

tOLZ

tOH

tAA

tHZ

tOHZ

DATA I/O

VIH

HIGH Z

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