Datasheet

AC Characteristics and Operating Conditions
Table 42: AC Characteristics and Operating Conditions
Parameter Symbol Min Typ
1
Max Unit Notes
Clock frequency for all commands other than
READ (SPI-ER, QIO-SPI protocol)
f
C DC – 108 MHz
Clock frequency for READ commands
f
R DC – 54 MHz
Clock HIGH time
t
CH 4 – – ns 2
Clock LOW time
t
CL 4 – – ns 1
Clock rise time (peak-to-peak)
t
CLCH 0.1 – – V/ns 3, 4
Clock fall time (peak-to-peak)
t
CHCL 0.1 – – V/ns 3, 4
S# active setup time (relative to clock)
t
SLCH 4 – – ns
S# not active hold time (relative to clock)
t
CHSL 4 – – ns
Data in setup time
t
DVCH 2 – – ns
Data in hold time
t
CHDX 3 – – ns
S# active hold time (relative to clock)
t
CHSH 4 – – ns
S# not active setup time (relative to clock)
t
SHCH 4 – – ns
S# deselect time after a READ command
t
SHSL1 20 – – ns
S# deselect time after a nonREAD command
t
SHSL2 50 – – ns
Output disable time
t
SHQZ – – 8 ns 3
Clock LOW to output valid under 30pF STR
t
CLQV – – 7 ns
DTR – – 8 ns
Clock LOW to output valid under 10pF STR – – 5 ns
DTR – – 6 ns
Output hold time (clock LOW)
t
CLQX 1 – – ns
Output hold time (clock HIGH)
t
CHQX 1 – – ns
HOLD command setup time (relative to clock)
t
HLCH 4 – – ns
HOLD command hold time (relative to clock)
t
CHHH 4 – – ns
HOLD command setup time (relative to clock)
t
HHCH 4 – – ns
HOLD command hold time (relative to clock)
t
CHHL 4 – – ns
HOLD command to output Low-Z
t
HHQX – – 8 ns 3
HOLD command to output High-Z
t
HLQZ – – 8 ns 3
Write protect setup time
t
WHSL 20 – – ns 5
Write protect hold time
t
SHWL 100 – – ns 5
Enhanced V
PPH
HIGH to S# LOW for extended and
dual I/O page program
t
VPPHSL 200 – – ns 6
WRITE STATUS REGISTER cycle time
t
W – 1.3 8 ms
Write NONVOLATILE CONFIGURATION REGISTER
cycle time
t
WNVCR – 0.2 3 s
CLEAR FLAG STATUS REGISTER cycle time
t
CFSR – 40 – ns
3V, 256Mb: Multiple I/O Serial Flash Memory
AC Characteristics and Operating Conditions
09005aef84566603
n25q_256mb_65nm.pdf - Rev. W 11/16 EN
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