PCA9538D datasheet(10/28 Pages) NXP

Part #	PCA9538D

Description	8-bit I2C-bus and SMBus low power I/O port with interrupt and reset

Download	28 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

10 / 28 page

PCA9538_5

Product data sheet

Rev. 05 — 28 May 2009

10 of 28

NXP Semiconductors

PCA9538

8-bit I2C-bus and SMBus low power I/O port with interrupt and reset

Fig 9.

Read from register

A

S

START condition

R/W

acknowledge

from slave

002aae710

A

acknowledge

from slave

SDA

A

P

acknowledge

from master

DATA (first byte)

slave address

STOP

condition

S

(repeated)

START condition

(cont.)

1100

A1 A0

1

A

1

R/W

acknowledge

from slave

slave address

at this moment master-transmitter becomes master-receiver

and slave-receiver becomes slave-transmitter

NA

no acknowledge

from master

COMMAND BYTE

1100

A1 A0

1

0

data from register

DATA (last byte)

data from register

This ﬁgure assumes the command byte has previously been programmed with 00h.

Transfer of data can be stopped at any moment by a STOP condition.

Expanded diagram is shown in Figure 17.

Fig 10. Read input port register

1100

A1 A0

1

A

S1

slave address

START condition

R/W

acknowledge

from slave

002aae711

data from port

A

acknowledge

from master

SDA

NA

no acknowledge

from master

read from

port

data into

port

data from port

DATA 1

DATA 4

INT

DATA 4

DATA 2

DATA 3

P

STOP

condition

tv(INT)

trst(INT)

th(D)

tsu(D)

12345678

SCL

9

DATA 1

Similar Part No. - PCA9538D

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	PCA9538D	197Kb / 18P	8-bit I2C and SMBus low power I/O port with interrupt and reset 2004 Oct 05
NXP Semiconductors	PCA9538D	268Kb / 12P	I2C Demonstration Board 2005-1 Quick Start Guide Rev. 01-13 June 2006
Texas Instruments	PCA9538DB	479Kb / 29P	[Old version datasheet] REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	PCA9538DB	626Kb / 31P	[Old version datasheet] REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	PCA9538DBG4	479Kb / 29P	[Old version datasheet] REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

More results

Similar Description - PCA9538D

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	PCA9538	197Kb / 18P	8-bit I2C and SMBus low power I/O port with interrupt and reset 2004 Oct 05
	PCA9537	143Kb / 24P	4-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev. 05-7 May 2009
	PCA9534	163Kb / 25P	8-bit I2C-bus and SMBus low power I/O port with interrupt Rev. 03-6 November 2006
	PCA9539	191Kb / 31P	16-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev. 05-28 July 2008
	PCA9537DP.118	143Kb / 24P	4-bit I2C-bus and SMBus low power I/O port with interrupt and reset Rev. 05-7 May 2009
	PCA9554PW-T	590Kb / 35P	8-bit I2C-bus and SMBus I/O port with interrupt Rev. 9-19 March 2013
	PCA9554D,112	590Kb / 35P	8-bit I2C-bus and SMBus I/O port with interrupt Rev. 9-19 March 2013
	PCA9554	187Kb / 30P	8-bit I2C-bus and SMBus I/O port with interrupt Rev. 07-13 November 2006
	PCAL9538A	2Mb / 43P	Low-voltage 8-bit I2C-bus and SMBus low power I/O port with interrupt, reset and Agile I/O Rev. 2-10 December 2012
	PCA9537	163Kb / 17P	4-bit I2C and SMBus low power I/O port with interrupt and reset 2004 Nov 29

More results

PCA9538D Datasheet(PDF) 10 Page - NXP Semiconductors

PCA9538D Datasheet(HTML) 10 Page - NXP Semiconductors

Similar Part No. - PCA9538D

Similar Description - PCA9538D

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL