© 2005 Microchip Technology Inc.

DS21754G-page 3

24AA512/24LC512/24FC512

TABLE 1-2:

AC CHARACTERISTICS

AC CHARACTERISTICS

Electrical Characteristics:

Industrial (I):

Automotive (E):

Param.

No.

Sym.

Characteristic

Min.

Max.

Units

Conditions

1

Clock frequency

—

—

—

100

400

1000

kHz

1.8V

2.5V

2.5V

2

Clock high time

4000

600

500

—

—

—

ns

1.8V

2.5V

2.5V

3

Clock low time

4700

1300

500

—

—

—

ns

1.8V

2.5V

2.5V

4

SDA and SCL rise time (Note 1)

—

—

—

1000

300

300

ns

1.8V

2.5V

2.5V

5

SDA and SCL fall time (Note 1)

—

—

300

100

ns

All except, 24FC512

2.5V

6

Start condition hold time

4000

600

250

—

—

—

ns

1.8V

2.5V

2.5V

7

Start condition setup time

4700

600

250

—

—

—

ns

1.8V

2.5V

2.5V

8

0

—

ns

(Note 2)

9

Data input setup time

250

100

100

—

—

—

ns

1.8V

2.5V

2.5V

10

Stop condition setup time

4000

600

250

—

—

—

ns

1.8V

2.5V

2.5V

11

WP setup time

4000

600

600

—

—

—

ns

1.8V

2.5V

2.5V

12

WP hold time

4700

1300

1300

—

—

—

ns

1.8V

2.5V

2.5V

13

Output valid from clock (Note 2)

—

—

—

3500

900

400

ns

1.8V

2.5V

2.5V

14

Bus free time: Time the bus

must be free before a new trans-

mission can start

4700

1300

500

—

—

—

ns

1.8V

2.5V

2.5V

16

Input filter spike suppression

(SDA and SCL pins)

—

50

ns

All except, 24FC512 (Notes 1 and 3)

17

Write cycle time (byte or page)

—

5

ms

—

18

—

Endurance

1,000,000

—

cycles

25°C (Note 4)

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:

4:

This parameter is not tested but ensured 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.