AD7147AACBZ-RL datasheet(7/69 Pages) AD

номер детали	AD7147AACBZ-RL

подробное описание детали	CapTouch Programmable Controller

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AD7147A

Rev. B | Page 6 of 68

I2C TIMING SPECIFICATIONS (AD7147A-1)

TA = −40°C to +85°C, sample tested at 25°C to ensure compliance. VDRIVE = 1.65 V to 3.6 V, and VCC = 2.6 V to 3.6 V, unless otherwise

noted. All input signals timed from a voltage level of 1.6 V.

Table 5. I2C Timing Specifications1

Parameter

Limit

Unit

Description

fSCLK

400

kHz max

t1

0.6

μs min

Start condition hold time, tHD; STA

t2

1.3

μs min

Clock low period, tLOW

t3

0.6

μs min

Clock high period, tHIGH

t4

100

ns min

Data setup time, tSU; DAT

t5

300

ns min

Data hold time, tHD; DAT

t6

0.6

μs min

Stop condition setup time, tSU; STO

t7

0.6

μs min

Start condition setup time, tSU; STA

t8

1.3

μs min

Bus-free time between stop and start conditions, tBUF

tR

300

ns max

Clock/data rise time

tF

300

ns max

Clock/data fall time

1 Guaranteed by design, not production tested.

I2C Timing Diagram

SCLK

SDA

tR

tF

t2

t5

t1

t3

t4

STOP START

STOP

START

t7

t6

t1

t8

Figure 3. I2C Detailed Timing Diagram

200µA

IOL

200µA

IOH

1.6V

TO OUTPUT

CL

50pF

Figure 4. Load Circuit for Digital Output Timing Specifications

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