GSC24BC01/02/02/04/08/16

Page: 4/9

ISSUED DATE :2006/06/14

REVISED DATE :

Parameter

Symbol

Test Condition

Min

TYP

Max

Unit

Clock Frequency, SCL

-

-

100

400

KHz

Clock Pulse Width Low

4.7

1.2

-

-

s

Clock Pulse Width High

4.0

0.6

-

-

s

-

-

100

50

ns

Clock Low to Data Out Valid

0.1

0.1

-

4.5

0.9

s

Time the bus must be free before

4.7

1.2

-

-

s

Start Hold Time

4.0

0.6

-

-

s

Start Setup Time

4.7

0.6

-

-

s

Data in Hold Time

CC

=1.8V

0

0

-

-

s

Data in Setup Time

200

100

-

-

ns

-

-

1.0

0.3

s

-

-

300

300

ns

Stop Setup Time

CC

=1.8V

4.7

0.6

-

-

s

Data Out Hold Time

100

50

-

-

ns

Write Cycle Time

-

-

5

5

ms

5.0V, 25 : , Byte Mode

Endurance

(1)

1M

1M

-

-

Write

Cycles

Note: 1. This parameter is characterized and not 100% tested.

Device Operation

Clock and Data Transitions: Transitions on the SDA pin should only occur when SCL is low (refer to the Data

Validity timing diagram in Figure 5). If the SDA pin changes when SCL is high, then the transition will be

interpreted as a START or STOP condition.

START Condition: A START condition occurs when the SDA transitions form high to low when SCL is high.

The START signal is usually used to initiate a command (refer to the Start and Stop Definition timing diagram in

Figure 6).

STOP Condition: A STOP condition occurs when the SDA transitions form low to high when SCL is high (refer

to Figure 6. START and STOP Definition timing diagram). The STOP command will put the device into standby

mode after no acknowledgment is issued during the read sequence.

Acknowledge: An acknowledgement is sent by pulling the SDA low to confirm that a word has been

successfully received. All addresses and data words are serially transmitted to and from the EEPROM in 8-bit

Standby Mode: Standby mode is entered when the chip is initially powered-on or after a STOP command has

been issued and any internal operations have been completed. .

Memory Reset: In the event of unexpected power or connection loss, a START condition can be issued to

restart the input command sequence. If the device is currently in write cycle mode, this command will be

ignored.