m29f040 STMicroelectronics, m29f040 Datasheet - Page 18

• Manufacturer Part Number: m29f040
• Description: 4 Mbit 512kb X8, Uniform Block Single Supply Flash Memory
• Manufacturer: STMicroelectronics

M29F040
Table 14B. Write AC Characteristics, Chip Enable Controlled
(T
Note: 1. Time is measured to Data Polling or Toggle Bit, t
18/31
t
t
Symbol
A
EHQV1
EHQV2
t
t
VCHWL
t
t
t
t
t
t
t
t
t
EHWH
t
WLEL
DVEH
EHDX
GHEL
EHGL
= 0 to 70 C, –20 to 85 C, –40 to 85 C or –40 to 125 C)
ELEH
EHEL
ELAX
AVAV
AVEL
(1)
(1)
t
t
t
t
t
t
Alt
t
t
t
t
OEH
CPH
t
VCS
WC
WS
WH
CP
DS
DH
AH
AS
Address Valid to Next Address Valid
Write Enable Low to Chip Enable Low
Chip Enable Low to Chip Enable High
Input Valid to Chip Enable High
Chip Enable High to Input Transition
Chip Enable High to Write Enable High
Chip Enable High to Chip Enable Low
Address Valid to Chip Enable Low
Chip Enable Low to Address Transition
Output Enable High Chip Enable Low
V
Chip Enable High to Output Valid (Program)
Chip Enable High to Output Valid
(Block Erase)
Chip Enable High to Output Enable Low
CC
High to Write Enable Low
Parameter
WHQV
= t
WHQ7V
+ t
Q7VQV
.
V
Min
120
CC
1.0
50
20
50
50
50
10
0
0
0
0
0
0
Standard
Interface
= 5V
-120
Max
10%
30
M29F040
V
Min
150
1.0
CC
50
50
20
50
50
10
0
0
0
0
0
0
Standard
Interface
= 5V
-150
Max
10%
30
Unit
sec
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s