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ADT7410

Data Sheet

Rev. C | Page 4 of 24

I2C TIMING SPECIFICATIONS

TA = −55°C to +150°C, VDD = 2.7 V to 5.5 V, unless otherwise noted. All input signals are specified with rise time (tR) = fall time (tF) = 5 ns

(10% to 90% of VDD) and timed from a voltage level of 1.6 V.

Table 2.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

SERIAL INTERFACE1, 2

See Figure 2

SCL Frequency

400

kHz

SCL High Pulse Width, tHIGH

0.6

µs

SCL Low Pulse Width, tLOW

1.3

µs

SCL, SDA Rise Time, tR

0.3

µs

SCL, SDA Fall Time, tF

0.3

µs

Hold Time (Start Condition), tHD;STA

0.6

µs

After this period, the first clock is generated

Setup Time (Start Condition), tSU;STA

0.6

µs

Relevant for repeated start condition

Data Setup Time, tSU;DAT

0.25

µs

VDD ≥ 3.0 V

0.35

µs

VDD < 3.0 V

Setup Time (Stop Condition), tSU;STO

0.6

µs

Data Hold Time, tHD;DAT (Master)

µs

Bus-Free Time (Between Stop and Start Condition), tBUF

1.3

µs

Sample tested during initial release to ensure compliance.

All input signals are specified with input rise/fall times = 3 ns, measured between the 10% and 90% points. Timing reference points at 50% for inputs and outputs.

Output load = 10 pF.

Timing Diagram

tLOW

tHD:STA

tHD:DAT

tSU:DAT

tSU:STA

tHD:STA

tSU:STO

tHIGH

SCL

SDA

tBUF

Figure 2. Serial Interface Timing Diagram

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