M24C64, M24C32

18/26

Table 16. AC Characteristics (M24Cxx-6, M24Cxx-W6 and M24Cxx-W3)

Note: 1. For a reSTART condition, or following a Write cycle.

2. Sampled only, not 100% tested.

3. To avoid spurious START and STOP conditions, a minimum delay is placed between SCL=1 and the falling or rising edge of SDA.

4. The Write Time of 5 ms only applies to devices bearing the process letter “B” in the package marking (on the top side of the pack-

age), otherwise (for devices bearing the process letter “N”) the Write Time is 10 ms. For further details, please contact your nearest

ST sales office, and ask for a copy of the Product Change Notice PCEE0036.

Table 17. AC Characteristics (M24Cxx-R)

Note: 1. For a reSTART condition, or following a Write cycle.

2. Sampled only, not 100% tested.

3. To avoid spurious START and STOP conditions, a minimum delay is placed between SCL=1 and the falling or rising edge of SDA.

Test conditions specified in Table 11. and Table 8. or Table 9.

Symbol

Alt.

Parameter

Min.

Max.

Unit

Clock Frequency

400

kHz

Clock Pulse Width High

600

ns

Clock Pulse Width Low

1300

ns

SDA Fall Time

20

300

ns

Data In Set Up Time

100

ns

Data In Hold Time

0

ns

Data Out Hold Time

200

ns

Clock Low to Next Data Valid (Access Time)

200

900

ns

Start Condition Set Up Time

600

ns

Start Condition Hold Time

600

ns

Stop Condition Set Up Time

600

ns

Time between Stop Condition and Next Start Condition

1300

ns

Write Time

ms

Test conditions specified in Table 11. and Table 10.

Symbol

Alt.

Parameter

Min.

Max.

Unit

Clock Frequency

400

kHz

Clock Pulse Width High

600

ns

Clock Pulse Width Low

1300

ns

SDA Fall Time

20

300

ns

Data In Set Up Time

100

ns

Data In Hold Time

0

ns

Data Out Hold Time

200

ns

Clock Low to Next Data Valid (Access Time)

200

900

ns

Start Condition Set Up Time

600

ns

Start Condition Hold Time

600

ns

Stop Condition Set Up Time

600

ns

Time between Stop Condition and Next Start Condition

1300

ns

Write Time

10

ms