DC and AC parameters
Figure 11. Power-Up and Reset AC Waveforms
M28W320FCT, M28W320FCB
W, E, G
tPHWL
tPHEL
tPHGL
tPHWL
tPHEL
tPHGL
RP
tVDHPH
VDD, VDDQ
Power-Up
Reset
AI03537b
tPLPH
Table 19.
Symbol
Power-Up and Reset AC Characteristics
M28W320FCT, M28W320FCB
Parameter
Test Condition
70
85
50
30
100
50
90
50
30
100
50
10
50
30
100
50
µs
ns
ns
µs
During
Program
and Erase
others
Unit
t
PHWL
t
PHEL
t
PHGL
Reset High to Write Enable Low, Chip
Enable Low, Output Enable Low
Min
Min
Min
Min
50
30
100
50
t
PLPH(1)(2)
Reset Low to Reset High
t
VDHPH(3)
Supply Voltages High to Reset High
1. The device Reset is possible but not guaranteed if t
PLPH
< 100ns.
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.
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NUMONYX [ NUMONYX B.V ]
