M28W320 STMicroelectronics, M28W320 Datasheet - Page 26

• Manufacturer Part Number: M28W320
• Description: 32 Mbit 2Mb x16/ Boot Block Low Voltage Flash Memory
• Manufacturer: STMicroelectronics

M28W320CT, M28W320CB
Table 25. Write AC Characteristics, Chip Enable Controlled
(T
Note: 1. See AC Testing Measurement conditions for timing measurements.
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t
t
t
QVVPL
t
PLRH
A
PLPH
VPHEH
Symbol
t
t
t
QVWPL
WPHEH
t
t
t
t
t
t
t
t
t
t
t
t
= 0 to 70 C or –40 to 85 C)
EHWH
AVEH
DVEH
EHAX
EHDX
EHEL
EHGL
ELEH
PHEL
WLEL
AVEH
AVAV
AVAV
2. Sampled only, not 100% tested.
3. The device Reset is possible but not guaranteed if t
4. The reset will complete within 100ns if RP is asserted while not in Program nor in Erase mode.
5. Applicable if V
(2, 3)
(2, 4)
(2, 5)
(2)
t
t
t
t
t
Alt
t
t
t
t
CPH
t
t
t
VPS
t
t
WC
WH
WC
AS
DS
AH
DH
CP
PS
RP
CS
AS
PP
is seen as a logic input (V
Write Cycle Time
Address Valid to Chip Enable High
Data Valid to Chip Enable High
Chip Enable High to Address Transition
Chip Enable High to Data Transition
Chip Enable High to Chip Enable Low
Chip Enable High to Output Enable Low
Chip Enable High to Write Enable High
Chip Enable Low to Chip Enable High
Reset High to Chip Enable Low
Reset Pulse Width
Reset Low to Program/Erase Abort
Output Valid to V
Data Valid to Write Protect Low
V
Write Enable Low to Chip Enable Low
Write Protect High to Chip Enable High
Write Cycle Time
Address Valid to Chip Enable High
PP
High to Chip Enable High
Parameter
PP
Low
PP
< 3.6V).
PLPH
< 100ns.
V
V
DD
Min
100
200
DDQ
90
50
50
30
30
50
90
50
90
50
0
0
0
0
0
0
(1)
= 2.7V to 3.6V
= 2.7V min
90
Max
30
M28W320C
V
VDDQ
DD
Min
100
100
100
200
100
50
50
30
30
50
50
50
0
0
0
0
0
0
= 2.7V to 3.6V
= 1.65V min
100
Max
30
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s