m28w640fcb STMicroelectronics, m28w640fcb Datasheet - Page 43

• Manufacturer Part Number: m28w640fcb
• Description: 64 Mbit 4mb X16, Boot Block 3v Supply Flash Memory
• Manufacturer: STMicroelectronics

M28W640FCT, M28W640FCB
Figure 11. Power-Up and Reset AC waveforms
Table 19.
1. The device Reset is possible but not guaranteed if t
2. Sampled only, not 100% tested.
3. It is important to assert RP in order to allow proper CPU initialization during power up or reset.
t
t
RP
VDD, VDDQ
W, E, G
PLPH
Symbol
VDHPH
t
t
t
PHWL
PHEL
PHGL
(1)(2)
(3)
Reset High to Write Enable Low,
Chip Enable Low, Output Enable
Low
Reset Low to Reset High
Supply Voltages High to Reset
High
Power-Up and Reset AC characteristics
tVDHPH
Parameter
Power-Up
tPHWL
tPHGL
tPHEL
and Erase
Test Condition
Program
PLPH
During
others
< 100ns
Min
Min
Min
Min
100
Reset
70
50
30
50
tPLPH
M28W640FCT,
M28W640FCB
DC and AC parameters
100
85
50
30
50
tPHWL
tPHGL
tPHEL
100
90
50
30
50
100
10
50
30
50
AI03537b
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Unit
µs
ns
ns
µs