M28R400CT, M28R400CB
Figure 11. Power-Up and Reset AC Waveforms
W, E, G
tPHWL
tPHEL
tPHGL
tPHWL
tPHEL
tPHGL
RP
tVDHPH
tPLPH
VDD, VDDQ
Power-Up
Reset
AI03537b
Table 18. Power-Up and Reset AC Characteristics
M28R400C
Symbol
Parameter
Test Condition
Unit
90
120
During
Program and
Erase
t
t
t
PHWL
Min
50
50
µs
Reset High to Write Enable Low, Chip Enable Low,
Output Enable Low
PHEL
PHGL
others
Min
Min
30
30
ns
ns
(1,2)
(3)
Reset Low to Reset High
100
100
t
t
PLPH
Supply Voltages High to Reset High
Min
50
50
µs
VDHPH
Note: 1. The device Reset is possible but not guaranteed if t
2. Sampled only, not 100% tested.
< 100ns.
PLPH
3. It is important to assert RP in order to allow proper CPU initialization during power up or reset.
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NUMONYX [ NUMONYX B.V ]
