5

0362E–EPROM–1/08

AT27C516

9.

AC Waveforms for Read Operation(1)

Notes:

1. Timing measurement reference level is 1.5V for -45 devices. Input AC drive levels are V

surement reference levels for all other speed grades are V

2. OE may be delayed up to t

3. OE may be delayed up to t

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

10. AC Characteristics for Read Operation

Symbol

Parameter

Condition

AT27C516

Units

-45

-70

Min

Max

Min

Max

(3)

Address to Output Delay

45

70

ns

t

CE

(2)

CE to Output Delay

OE = V

IL

45

70

ns

tOE

(2)(3)

OE to Output Delay

20

25

ns

tDF

(4)(5)

OE or CE High to Output Float, whichever occurred first

20

25

ns

Output Hold from Address, CE or OE, Whichever

Occurred First

77

ns