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A.c. characteristics, Ht24lc02 – Rainbow Electronics HT24LC02 User Manual

Page 3

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A.C. Characteristics

Ta=0

°C to 70°C

Symbol

Parameter

Remark

Standard Mode*

V

CC

=5V

±10%

Unit

Min.

Max.

Min.

Max.

f

SK

Clock Frequency

¾

¾

100

¾

400

kHz

t

HIGH

Clock High Time

¾

4000

¾

600

¾

ns

t

LOW

Clock Low Time

¾

4700

¾

1200

¾

ns

t

r

SDA and SCL Rise Time

Note

¾

1000

¾

300

ns

t

f

SDA and SCL Fall Time

Note

¾

300

¾

300

ns

t

HD:STA

START Condition Hold Time

After this period the
first clock pulse is
generated

4000

¾

600

¾

ns

t

SU:STA

START Condition Setup Time

Only relevant for
repeated START
condition

4000

¾

600

¾

ns

t

HD:DAT

Data Input Hold Time

¾

0

¾

0

¾

ns

t

SU:DAT

Data Input Setup Time

¾

200

¾

100

¾

ns

t

SU:STO

STOP Condition Setup Time

¾

4000

¾

600

¾

ns

t

AA

Output Valid from Clock

¾

¾

3500

¾

900

ns

t

BUF

Bus Free Time

Time in which the bus
must be free before a
new transmission can
start

4700

¾

1200

¾

ns

t

SP

Input Filter Time Constant
(SDA and SCL Pins)

Noise suppression
time

¾

100

¾

50

ns

t

WR

Write Cycle Time

¾

¾

5

¾

5

ms

Note:

These parameters are periodically sampled but not 100% tested

* The standard mode means V

CC

=2.2V to 5.5V

For relative timing, refer to timing diagrams

HT24LC02

Rev. 1.10

3

November 5, 2002