256Mb, 512Mb, 1Gb, 2Gb: 3V Embedded Parallel NOR Flash
Power-Up and Reset Characteristics
Table 23: Reset AC Specifications
Symbol
Condition/Parameter
RST# LOW to read mode during program or
erase
RST# pulse width
RST# HIGH to CE# LOW, OE# LOW
RST# LOW to standby mode during read mode
RST# LOW to standby mode during program or
erase
RY/BY# HIGH to CE# LOW, OE# LOW
Note:
t
RB
t
RHEL,
t
RHGL
Legacy
t
READY
t
RP
t
RH
t
RPD
JEDEC
t
PLRH
t
PLPH
t
PHEL,
t
PHGL
Min
–
100
50
10
50
0
Max
32
–
–
–
–
–
Unit
µs
ns
ns
µs
µs
ns
Notes
–
1. Sampled only; not 100% tested.
Figure 14: Reset AC Timing – No PROGRAM/ERASE Operation in Progress
RY/BY#
CE#, OE#
t
RH
RST#
t
RP
Figure 15: Reset AC Timing During PROGRAM/ERASE Operation
t
READY
RY/BY#
t
RB
CE#, OE#
t
RH
RST#
t
RP
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m29ew_256mb_2gb.pdf - Rev. B 8/12 EN
54
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