at27c516 ATMEL Corporation, at27c516 Datasheet - Page 5

• Manufacturer Part Number: at27c516
• Description: 512k 32k X 16 Otp Eprom
• Manufacturer: ATMEL Corporation

9. AC Waveforms for Read Operation
10. AC Characteristics for Read Operation
Notes:
0362E–EPROM–1/08
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(2)
(4)(5)
(2)(3)
(3)
1. Timing measurement reference level is 1.5V for -45 devices. Input AC drive levels 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.
surement reference levels for all other speed grades are V
and V
IH
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
OE or CE High to Output Float, whichever occurred first
Output Hold from Address, CE or OE, Whichever
Occurred First
= 2.4V.
CE
ACC
- t
- t
OE
OE
after the falling edge of CE without impact on t
after the address is valid without impact on t
Condition
CE = OE = V
OE = V
CE = V
IL
IL
(1)
IL
OL
= 0.8V and V
Min
7
OH
-45
= 2.0V. Input AC drive levels are V
ACC
Max
CE
45
45
20
20
AT27C516
.
.
IL
= 0.0V and V
Min
7
-70
IH
AT27C516
Max
70
70
25
25
= 3.0V. Timing mea-
IL
= 0.45V
Units
ns
ns
ns
ns
ns
5