6

FN8151.0

January 20, 2005

Timing Diagrams

AC CHARACTERISTICS

SCL Clock Frequency

400

kHz

Pulse width Suppression Time at

inputs

50

ns

0.1

1.5

µs

(Note 1)

Time the bus is free before start of new

transmission

1.3

µs

Clock LOW Time

1.3

µs

Clock HIGH Time

0.6

µs

Start Condition Setup Time

0.6

µs

Start Condition Hold Time

0.6

µs

Data In Setup Time

100

ns

Data In Hold Time

0

µs

Stop Condition Setup Time

0.6

µs

50

ns

20 +.1Cb

300

ns

20 +.1Cb

300

ns

WP Setup Time

0.6

µs

WP Hold Time

0µs

A0, A1 Setup Time

0.6

µs

A0, A1 Hold Time

0

µs

0.6

µs

Cb (Note 3) Capacitive load for each bus line

400

pF

510

ms

NOTES:

1. This parameter is based on characterization data.

minimum cycle time to be allowed for any nonvolatile write by the user, unless Acknowledge Polling is used.

3. This parameter is not 100% tested.

SYMBOL

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SCL

SDA IN

SDA OUT

FIGURE 4. BUS TIMING

X80120, X80121