ES9822PRO datasheet(40/126 Pages) ESS

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ES9822 PRO Product Datasheet

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM

I2C Slave/Synchronous Slave Interface Timing

Start

Stop

Figure 6 - I2C Slave Control Interface Timing Diagram

Parameter

Symbol

CLK

Constraint

Standard-Mode

Fast-Mode

Unit

MIN

MAX

MIN

MAX

SCL Clock Frequency

fSCL

< CLK/20

100

400

kHz

START condition hold time

tHD;STA

4.0

0.6

s

LOW period of SCL

tLOW

>10/CLK

4.7

1.3

s

HIGH period of SCL (>10/CLK)

tHIGH

>10/CLK

4.0

0.6

s

START condition setup time (repeat)

tSU;STA

4.7

0.6

s

SDA hold time from SCL falling

All except NACK read

NACK read only

tHD;DAT

2/CLK

s

SDA setup time from SCL rising

tSU;DAT

250

100

Rise time of SDA and SCL

1000

300

Fall time of SDA and SCL

300

STOP condition setup time

tSU;STO

0.6

s

Bus free time between transmissions

tBUF

4.7

1.3

s

Capacitive load for each bus line

400

Table 25 - I2C Slave Control Interface Timing Definitions

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