KM29U128T, KM29U128IT

FLASH MEMORY

8

AC Characteristics for Operation

2. The time to Ready depends on the value of the pull-up resistor tied R/B pin.

3. To break the sequential read cycle, CE must be held high for longer time than tCEH.

Parameter

Symbol

Min

Max

Unit

Data Transfer from Cell to Register

-

10

µs

ALE to RE Delay( ID read )

100

-

ns

ALE to RE Delay(Read cycle)

50

-

ns

CE to RE Delay( ID read)

100

-

ns

Ready to RE Low

20

-

ns

RE Pulse Width

30

-

ns

WE High to Busy

-

100

ns

Read Cycle Time

50

-

ns

RE Access Time

-

35

ns

RE High to Output Hi-Z

15

30

ns

CE High to Output Hi-Z

-

20

ns

RE High Hold Time

15

-

ns

Output Hi-Z to RE Low

0

-

ns

Last RE High to Busy(at sequential read)

-

100

ns

-

ns

100

-

ns

RE Low to Status Output

-

35

ns

CE Low to Status Output

-

45

ns

WE High to RE Low

60

-

ns

RE access time(Read ID)

-

35

ns

-

5/10/500

µs

AC Timing Characteristics for Command / Address / Data Input

Parameter

Symbol

Min

Max

Unit

CLE Set-up Time

0

-

ns

CLE Hold Time

10

-

ns

CE Setup Time

0

-

ns

CE Hold Time

10

-

ns

WE Pulse Width

25

-

ns

ALE Setup Time

0

-

ns

ALE Hold Time

10

-

ns

Data Setup Time

20

-

ns

Data Hold Time

10

-

ns

Write Cycle Time

50

-

ns

WE High Hold Time

15

-

ns