ISL90840UIV2027 datasheet(10/12 Pages) INTERSIL

Part #	ISL90840UIV2027

Description	Low Noise, Low Power I2C Bus, 256 Taps

Download	12 Pages

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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10 / 12 page

10

FN8086.0

July 27, 2005

SDA

SCL

START

DATA

STOP

STABLE

CHANGE

DATA

STABLE

FIGURE 15. VALID DATA CHANGES, START, AND STOP CONDITIONS

SDA OUTPUT FROM

TRANSMITTER

SDA OUTPUT FROM

RECEIVER

8

1

9

START

ACK

SCL FROM

MASTER

HIGH IMPEDANCE

FIGURE 16. ACKNOWLEDGE RESPONSE FROM RECEIVER

S

T

A

R

T

S

T

O

P

IDENTIFICATION

BYTE

ADDRESS

BYTE

DATA

BYTE

A

C

K

SIGNALS FROM

THE MASTER

SIGNALS FROM

THE ISL90840

A

C

K

0

11

A

C

K

WRITE

SIGNAL AT SDA

00 0 0

A0

A1

A2

0000

FIGURE 17. BYTE WRITE SEQUENCE

SIGNALS

FROM THE

MASTER

SIGNALS FROM

THE SLAVE

SIGNAL AT SDA

S

T

A

R

T

IDENTIFICATION

BYTE WITH

R/W=0

ADDRESS

BYTE

A

C

K

A

C

K

00

0

11

S

T

O

P

A

C

K

0

1

0

11

IDENTIFICATION

BYTE WITH

R/W=1

A

C

K

S

T

A

R

T

LAST READ

DATA BYTE

FIRST READ

DATA BYTE

A

C

K

0

00 0

0 0

A0

A1

A2

A0

A1

A2

FIGURE 18. READ SEQUENCE

ISL90840

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ISL90840UIV2027 Datasheet(PDF) 10 Page - Intersil Corporation

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