W39V040FA

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Programmer Interface Mode AC Characteristics, continued

Read Cycle Timing Parameters

W39V040FA

PARAMETER

SYMBOL

MIN.

MAX.

UNIT

Read Cycle Time

300

-

nS

Row / Column Address Set Up Time

50

-

nS

Row / Column Address Hold Time

50

-

nS

Address Access Time

-

150

nS

Output Enable Access Time

-

75

nS

#OE Low to Active Output

0

-

nS

#OE High to High-Z Output

-

35

nS

Output Hold from Address Change

0

-

nS

Write Cycle Timing Parameters

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Reset Time

1

-

-

µS

Address Setup Time

50

-

-

nS

Address Hold Time

50

-

-

nS

R/#C to Write Enable High Time

50

-

-

nS

#WE Pulse Width

100

-

-

nS

#WE High Width

100

-

-

nS

Data Setup Time

50

-

-

nS

Data Hold Time

50

-

-

nS

#OE Hold Time

0

-

-

nS

Byte programming Time

-

35

50

µS

Sector/Page Erase Cycle Time

-

20

25

mS

Chip Erase Cycle Time

-

75

100

mS

Note: All AC timing signals observe the following guidelines for determining setup and hold times:

(a) High level signal's reference level is input high and (b) low level signal's reference level is input low.

Ref. to the AC testing condition.

Data Polling and Toggle Bit Timing Parameters

W39V040FA

UNIT

PARAMETER

SYMBOL

MIN.

MAX.

#OE to Data Polling Output Delay

-

40

nS

#OE to Toggle Bit Output Delay

-

40

nS