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DS21131E-page 4

Preliminary

 2004 Microchip Technology Inc.

TABLE 1-2:

AC CHARACTERISTICS

AC CHARACTERISTICS

Applicable over recommended operating ranges shown below unless otherwise noted:

Industrial

Parameter

Symbol

Min.

Max.

Units

Conditions

Clock frequency

—3

2

MHz

MHz

4.5V

2.5V

Clock high time

200

300

—ns

ns

4.5V

2.5V

Clock low time

100

200

—ns

ns

4.5V

2.5V

Chip select setup time

50

100

—ns

ns

4.5V

2.5V

Chip select hold time

0—

ns

—

Chip select low time

250

—

ns

Relative to CLK

Data input setup time

50

100

—ns

ns

4.5V

2.5V

Data input hold time

50

100

—ns

ns

4.5V

2.5V

Data output delay time

—100

250

ns

ns

4.5V

2.5V

Data output disable time

—100

500

ns

ns

4.5V

2.5V

Status valid time

Tsv

—

200

300

ns

ns

4.5V

2.5V

Program cycle time

—

5

ms

Erase/Write mode

—

15

ms

ERAL mode

—30

ms

WRAL mode

Endurance

—

1M

—

cycles

25°C, Vcc = 5.0V, Block mode

(Note 2)

Note 1:

This parameter is periodically sampled and not 100% tested.

2:

This parameter is not tested but ensured by characterization. For endurance estimates in a specific appli-

cation, please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at

www.microchip.com.