at27lv1026 ATMEL Corporation, at27lv1026 Datasheet - Page 6

• Manufacturer Part Number: at27lv1026
• Description: 1-megabit 16-bit Interleaved Low-voltage Eprom
• Manufacturer: ATMEL Corporation

AC Characteristics for Read Operation
Notes:
AC Waveforms for Read Operation
Notes:
6
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
NLACYC
LACYC
ALE
AS
AH
ARD
RDL
RDH
ACCNLA
ACCLA
DF
OH
CS
RC
CR
CA
(2)(3)
O
A
ALE
0 -15
CS
RD
0-15
1.
2.
3.
4.
2, 3. - See AC Waveforms for Read Operation.
Parameter
Non-Linear Access Cycle
Linear Access Cycle
ALE High Width
Address/CS Setup Time
Address Hold Time
ALE Low to RD Low
RD Low Width
RD High Width
Address to Output Delay in Non-Linear Address Cycle from ALE Low
Output Valid Delay in Linear Address Cycle from RD High
CS High to Output Float
Output Hold from CS High
Output Valid Delay from CS Low in Linear Address Cycle
RD High to CS Falling Edge Delay
CS Falling Edge to RD Low Delay
CS Rising Edge to ALE Low Delay
Refer to Test Waveforms and Measurement Levels diagram on next page.
This parameter is only sampled and is not 100% tested.
Output float is defined as the point when data is no longer driven.
When reading a 27LV1026, a 0.1 F capacitor is required across V
t
ALE
AT27LV1026
VALID
NLA
t
NLACYC
t
t
AS
AH
t
ARD
t
ACCNLA
t
ACCLA
t
LACYC
LA
(1)
t
RDL
(V
t
CC
RDH
= 3.0V to 3.6V and 4.5V to 5.5V)
LA
CC
t
and ground to suppress spurious voltage transients.
OH
Condition
ALE = CS = V
ALE = CS = V
ALE = CS = V
ALE = CS = V
t
LA
DF
t
CA
IL
IL
IL
IL
Min
7.5
2.5
2.5
70
35
20
13
12
10
12
t
5
0
RC
AT27LV1026
t
Typ
CR
80
40
t
CS
LA
Max
17
14
52
17
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns