at27c512r-70pa ATMEL Corporation, at27c512r-70pa Datasheet - Page 5

• Manufacturer Part Number: at27c512r-70pa
• Description: 512k 64k X 8 Otp Eprom
• Manufacturer: ATMEL Corporation

9. AC Characteristics for Read Operation
Note:
10. AC Waveforms for Read Operation
Notes:
0015O–EPROM–12/07
Symbol
t
t
t
t
t
ACC
CE
OE
DF
OH
(1)
(1)
(1)
(1)
1. See AC Waveforms for Read Operation.
1. Timing measurement reference level is 1.5V for -45 devices. Input AC drive levels are V
2. OE/V
3. OE/V
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
Parameter
Address to Output Delay
CE to Output Delay
OE/V
OE/V
Output Hold from Address, CE or OE/V
First
PP
PP
IH
= 2.4V.
may be delayed up to t
may be delayed up to t
PP
PP
or CE High to Output Float, Whichever Occurred First
to Output Delay
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
PP
Condition
CE = OE/V
OE/V
CE = V
, Whichever Occurred
PP
(1)
IL
= V
PP
IL
= V
OL
= 0.8V and V
IL
Min
OH
7
= 2.0V. Input AC drive levels are V
-45
Max
ACC
45
45
20
20
AT27C512R
CE
IL
.
.
= 0.0V and V
Min
7
AT27C512R
-70
IH
= 3.0V. Timing mea-
Max
70
70
30
25
IL
= 0.45V
Units
ns
ns
ns
ns
ns
5