w39l040a Winbond Electronics Corp America, w39l040a Datasheet - Page 16

• Manufacturer Part Number: w39l040a
• Description: 512k ? 8 Cmos Flash Memory
• Manufacturer: Winbond Electronics Corp America

AC Characteristics, continued
7.4.3
(V
7.4.4
Note: All AC timing signals observe the following guidelines for determining setup and hold times:
Read Cycle Time
Chip Enable Access Time
Address Access Time
Output Enable Access Time
#CE High to High-Z Output
#OE High to High-Z Output
Output Hold from Address Change
Write Cycle Time
Address Setup Time
Address Hold Time
#CE Setup Time
#CE Hold Time
#OE Setup Time
#WE Pulse Width
#WE High Width
Data Setup Time
Data Hold Time
Byte Programming Time
Chip Programming Time
Chip Erase Cycle Time
Sector Erase Cycle Time
DD
= 3.0 ~ 3.6V for 70 nS or V
(a) High level signal's reference level is V
Read Cycle Timing Parameters
Erase/Program Cycle Timing Parameters
PARAMETER
PARAMETER
DD
= 2.7 ~ 3.6V for 90 nS, V
T
T
SYM.
T
T
T
T
T
T
T
T
T
T
T
T
WPH
OES
WC
WP
CH
DH
AS
AH
CS
DS
BP
CP
EC
EP
IH
and (b) low level signal's reference level is V
MIN.
T
T
T
T
T
T
T
SYM.
70
45
35
30
35
RC
CE
AA
OE
CHZ
OHZ
OH
0
0
0
0
0
-
-
-
-
SS
- 16 -
= 0V, T
70 nS
TYP.
4.5
0.7
9
6
-
-
-
-
-
-
-
-
-
-
A
MIN.
70
= 0 to 70° C)
0
-
-
-
-
-
MAX.
70 nS
13.5
200
50
6
-
-
-
-
-
-
-
-
-
-
MAX.
70
70
30
16
16
-
-
MIN.
90
45
35
30
45
0
0
0
0
0
-
-
-
-
IL
MIN.
.
TYP.
90 nS
90
0
4.5
0.7
-
-
-
-
-
9
6
-
-
-
-
-
-
-
-
-
-
90 nS
W39L040A
MAX.
MAX.
13.5
200
90
90
35
16
16
50
6
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
μ S
S
S
S