m29f040 STMicroelectronics, m29f040 Datasheet - Page 17

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

Table 14A. Write AC Characteristics, Chip Enable Controlled
(T
Note: 1. Time is measured to Data Polling or Toggle Bit, t
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
2. The temperature range –40 to 125 C is guaranteed at 70ns with High Speed Interface test condition and V
(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
(2)
.
V
Min
1.0
CC
70
35
30
20
45
50
10
0
0
0
0
0
0
Standard
Interface
= 5V
-70
Max
10%
30
M29F040
V
Min
1.0
CC
90
45
45
20
45
50
10
0
0
0
0
0
0
Standard
Interface
= 5V
-90
CC
= 5V
Max
10%
30
M29F040
5%.
Unit
sec
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
17/31
s
s