m29f040 STMicroelectronics, m29f040 Datasheet - Page 15

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

Table 13B. Write AC Characteristics, Write Enable Controlled
(T
Note: 1. Time is measured to Data Polling or Toggle Bit, t
t
t
Symbol
A
WHQV1
WHQV2
t
t
t
t
t
t
t
t
t
t
t
VCHEL
WHGL
t
WHWL
WLWH
DVWH
WHDX
WHEH
GHWL
= 0 to 70 C, –20 to 85 C, –40 to 85 C or –40 to 125 C)
WLAX
ELWL
AVWL
AVAV
(1)
(1)
t
t
t
t
t
WPH
Alt
t
t
t
t
t
t
OEH
VCS
WC
WP
CS
DS
DH
CH
AH
AS
Address Valid to Next Address Valid
Chip Enable Low to Write Enable Low
Write Enable Low to Write Enable High
Input Valid to Write Enable High
Write Enable High to Input Transition
Write Enable High to Chip Enable High
Write Enable High to Write Enable Low
Address Valid to Write Enable Low
Write Enable Low to Address Transition
Output Enable High to Write Enable Low
V
Write Enable High to Output Valid (Program)
Write Enable High to Output Valid
(Block Erase)
Write Enable High to Output Enable Low
CC
High to Chip Enable Low
Parameter
WHQV
= t
WHQ7V
+ t
Q7VQV
V
Min
120
1.0
50
50
20
50
50
10
CC
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
M29F040
Unit
sec
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
15/31
s
s