ISL22316WFU10Z 데이터 시트보기 (PDF) - Renesas Electronics

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ISL22316WFU10Z

Single Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power I2C™ Bus, 128 Taps

Renesas Electronics 

ISL22316

SCL

SDA

START

DATA

DATA

DATA

STABLE CHANGE STABLE

STOP

FIGURE 16. VALID DATA CHANGES, START AND STOP CONDITIONS

SCL FROM

MASTER

1

SDA OUTPUT FROM

TRANSMITTER

8

9

HIGH IMPEDANCE

SDA OUTPUT FROM

RECEIVER

HIGH IMPEDANCE

START

ACK

FIGURE 17. ACKNOWLEDGE RESPONSE FROM RECEIVER

SIGNALS FROM

THE MASTER

WRITE

S

T

A

R

T

IDENTIFICATION

BYTE

ADDRESS

BYTE

S

DATA

T

BYTE

O

P

SIGNAL AT SDA

0 1 0 1 0 A1 A0 0 0 0 0 0

SIGNALS FROM

THE SLAVE

A

A

A

C

C

C

K

K

K

FIGURE 18. BYTE WRITE SEQUENCE

SIGNALS

FROM THE

MASTER

S

T

A IDENTIFICATION

R

BYTE WITH

T

R/W = 0

ADDRESS

BYTE

S

T

A IDENTIFICATION

R BYTE WITH

T

R/W = 1

A

A

C

C

K

K

S

AT

CO

KP

SIGNAL AT SDA 0 1 0 1 0A1 A0 0

0000

A

SIGNALS FROM

C

THE SLAVE

K

0 1 0 1 0 A1 A0 1

A

A

C

C FIRST READ

K

K DATA BYTE

FIGURE 19. READ SEQUENCE

FN6186 Rev 3.00

August 14, 2015

LAST READ

DATA BYTE

Page 12 of 16

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