PCA6408AHK datasheet(6/40 Pages) NXP

Part #	PCA6408AHK

Description	Low-voltage, 8-bit I2C-bus and SMBus I/O expander with interrupt output, reset, and configuration registers

Download	40 Pages

Scroll/Zoom	100%

Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

6 / 40 page

PCA6408A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1 — 27 September 2012

6 of 40

NXP Semiconductors

PCA6408A

Low-voltage, 8-bit I2C-bus and SMBus I/O expander

6.

Voltage translation

Table 4 shows how to set up VDD levels for the necessary voltage translation between the

I2C-bus and the PCA6408A.

7.

Functional description

Refer to Figure 1 “Block diagram (positive logic)”.

7.1 Device address

The address of the PCA6408A is shown in Figure 5.

ADDR is the hardware address package pin and is held to either HIGH (logic 1) or LOW

(logic 0) to assign one of the two possible slave addresses. The last bit of the slave

address defines the operation (read or write) to be performed. A HIGH (logic 1) selects a

read operation, while a LOW (logic 0) selects a write operation.

Table 4.

Voltage translation

VDD(I2C-bus) (SDA and SCL of I2C master)

VDD(P) (Port P)

1.8 V

2.5 V

1.8 V

3.3 V

1.8V

5V

2.5 V

1.8 V

2.5 V

3.3 V

2.5V

5V

3.3 V

1.8 V

3.3 V

2.5 V

3.3 V

3.3V

5V

1.8V

5V

2.5V

5V

3.3V

5V

Fig 5.

PCA6408A address

R/W

002aaf539

0

1

0

AD

DR

fixed

slave address

programmable

Similar Part No. - PCA6408AHK

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	PCA6416A	727Kb / 8P	Smart, simple solutions for the 12 most common design concerns August 2011
	PCA6416A	2Mb / 42P	Low-voltage translating 16-bit I2C-bus/SMBus I/O expander Rev. 1-11 September 2012
	PCA6416AEV	2Mb / 42P	Low-voltage translating 16-bit I2C-bus/SMBus I/O expander Rev. 1-11 September 2012
	PCA6416AHF	2Mb / 42P	Low-voltage translating 16-bit I2C-bus/SMBus I/O expander Rev. 1-11 September 2012
	PCA6416APW	2Mb / 42P	Low-voltage translating 16-bit I2C-bus/SMBus I/O expander Rev. 1-11 September 2012

More results

Similar Description - PCA6408AHK

Manufacturer	Part #	Datasheet	Description
Texas Instruments	TCA6408A	932Kb / 35P	[Old version datasheet] LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	TCA6408	841Kb / 30P	[Old version datasheet] LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	TCA6408	927Kb / 31P	[Old version datasheet] LOW-VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
NXP Semiconductors	PCAL6408A	2Mb / 48P	Low-voltage translating, 8-bit I2C-bus/SMBus I/O expander with interrupt output, reset, and configuration registers Rev. 2-6 December 2012
Texas Instruments	TCA6416	913Kb / 35P	[Old version datasheet] LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	TCA6416A	900Kb / 32P	[Old version datasheet] LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	TCA6416	781Kb / 31P	[Old version datasheet] LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS
	TCA9554	663Kb / 31P	[Old version datasheet] LOW VOLTAGE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
	TCAL9538	1Mb / 41P	[Old version datasheet] TCAL9538 8-Bit I2C-Bus, SMBus I/O Expander With Interrupt Output, Reset, and Agile I/O Configuration Registers REVISED NOVEMBER 2023
	TCA6416A	909Kb / 34P	[Old version datasheet] LOW-VOLTAGE 16-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT, RESET, AND CONFIGURATION REGISTERS

More results

PCA6408AHK Datasheet(PDF) 6 Page - NXP Semiconductors

PCA6408AHK Datasheet(HTML) 6 Page - NXP Semiconductors

Similar Part No. - PCA6408AHK

Similar Description - PCA6408AHK

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 29 30 31 32 33 34 35 36 37 38 39 40

Datasheet Download

Link URL