© 2008 Microchip Technology Inc.

DS21941F-page 3

24AA1025/24LC1025/24FC1025

TABLE 1-2:

AC CHARACTERISTICS

AC CHARACTERISTICS

Industrial (I):

Param.

No.

Sym.

Characteristic

Min.

Max.

Units

Conditions

Clock frequency

—

—

—

100

400

1000

kHz

1.7V

2.5V

2.5V

Clock high time

4000

600

500

—

—

—

ns

1.7V

2.5V

2.5V

Clock low time

4700

1300

500

—

—

—

ns

1.7V

2.5V

2.5V

SDA and SCL rise time

(Note 1)

—

—

—

1000

300

300

ns

1.7V

2.5V

2.5V

SDA and SCL fall time

(Note 1)

—

—

300

100

ns

All except, 24FC1025

2.5V

Start condition hold time

4000

600

250

—

—

—

ns

1.7V

2.5V

2.5V

Start condition setup time

4700

600

250

—

—

—

ns

1.7V

2.5V

2.5V

0

—

ns

(Note 2)

Data input setup time

250

100

100

—

—

—

ns

1.7V

2.5V

2.5V

10

Stop condition setup time

4000

600

250

—

—

—

ns

1.7V

2.5V

2.5V

11

WP setup time

4000

600

600

—

—

—

ns

1.7V

2.5V

2.5V

12

WP hold time

4700

1300

1300

—

—

—

ns

1.7V

2.5V

2.5V

13

Output valid from clock

(Note 2)

—

—

—

3500

900

400

ns

1.7V

2.5V

2.5V

14

Bus free time: Time the bus

must be free before a new

transmission can start

4700

1300

500

—

—

—

ns

1.7V

2.5V

2.5V

15

≤ 100 pF

250

250

ns

All except, 24FC1025 (Note 1)

24FC1025 (Note 1)

Note 1:

2:

As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (minimum

300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.

3:

suppression. This eliminates the need for a TI specification for standard operation.

4:

This parameter is not tested but established by characterization. For endurance estimates in a specific application,

please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at www.microchip.com.

5:

Max. clock frequency is 100 kHz for E-temp devices <4.5V. 1.7-2.5V (100 kHz) timings must be used.

6: