PCA9674/74A

General description

The PCA9674/74A provide general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I²C-bus) and is a part of the Fast-mode Plus (Fm+) family.

The PCA9674/74A is a drop-in upgrade for the PCF8574/74A providing higher Fast-mode Plus I²C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM dimming of LEDs, higher I²C-bus drive (30 mA versus 3 mA) so that many more devices can be on the bus without the need for bus buffers, higher total package sink capacity (200 mA versus 100 mA) that supports having all LEDs on at the same time and more device addresses (64 versus 8) are available to allow many more devices on the bus without address conflicts.

The devices consist of an 8-bit quasi-bidirectional port and an I²C-bus interface. The PCA9674/74A have low current consumption and include latched outputs with 25 mA high current drive capability for directly driving LEDs.

They also possess an interrupt line (INT) that can be connected to the interrupt logic of the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I²C-bus.

The internal Power-On Reset (POR) or Software Reset sequence initializes the I/Os as inputs.

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Features

1 MHz I²C-bus interface
Compliant with the I²C-bus Fast and Standard modes
SDA with 30 mA sink capability for 4000 pF buses
2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
8-bit remote I/O pins that default to inputs at power-up
Latched outputs with 25 mA sink capability for directly driving LEDs
Total package sink capability of 200 mA
Active LOW open-drain interrupt output
64 programmable slave addresses using 3 address pins
Readable device ID (manufacturer, device type, and revision)
Low standby current
-40 Cel to +85 Cel operation
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
Latch-up testing is done to JEDEC standard JESD78 which exceeds 100 mA
Packages offered: SO16, SSOP20, TSSOP16, HVQFN16

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Products/packages

Type number	Orderable part number	Ordering code (12NC)	Product status	Package	Packing	Marking
PCA9674ABS	PCA9674ABS,118	9352 827 39118	Volume production	SOT758-1 (HVQFN16)	Reel Pack, SMD, 13"	Standard Marking
PCA9674AD	PCA9674AD,512	9352 827 41512	Volume production	SOT162-1 (SO16)	Tube Dry Pack	Standard Marking
PCA9674AD	PCA9674AD,518	9352 827 41518	Volume production	SOT162-1 (SO16)	Reel Dry Pack, SMD, 13"	Standard Marking
PCA9674AN	PCA9674AN,112	9352 827 42112	Volume production	SOT38-4 (DIP16)	Tube	Standard Marking
PCA9674APW	PCA9674APW,112	9352 827 43112	Volume production	SOT403-1 (TSSOP16)	Tube	Standard Marking
PCA9674APW	PCA9674APW,118	9352 827 43118	Volume production	SOT403-1 (TSSOP16)	Reel Pack, SMD, 13"	Standard Marking
PCA9674ATS	PCA9674ATS,112	9352 827 44112	Volume production	SOT266-1 (SSOP20)	Tube	Standard Marking
PCA9674ATS	PCA9674ATS,118	9352 827 44118	Volume production	SOT266-1 (SSOP20)	Reel Pack, SMD, 13"	Standard Marking
PCA9674BS	PCA9674BS,118	9352 827 38118	Volume production	SOT758-1 (HVQFN16)	Reel Pack, SMD, 13"	Standard Marking
PCA9674D	PCA9674D,512	9352 827 36512	Volume production	SOT162-1 (SO16)	Tube Dry Pack	Standard Marking
PCA9674D	PCA9674D,518	9352 827 36518	Volume production	SOT162-1 (SO16)	Reel Dry Pack, SMD, 13"	Standard Marking
PCA9674N	PCA9674N,112	9352 831 88112	Volume production	SOT38-4 (DIP16)	Tube	Standard Marking
PCA9674PW	PCA9674PW,112	9352 827 35112	Volume production	SOT403-1 (TSSOP16)	Tube	Standard Marking
PCA9674PW	PCA9674PW,118	9352 827 35118	Volume production	SOT403-1 (TSSOP16)	Reel Pack, SMD, 13"	Standard Marking
PCA9674TS	PCA9674TS,112	9352 831 89112	Volume production	SOT266-1 (SSOP20)	Tube	Standard Marking
PCA9674TS	PCA9674TS,118	9352 831 89118	Volume production	SOT266-1 (SSOP20)	Reel Pack, SMD, 13"	Standard Marking

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Quality/reliability/chemical content

Type number	Orderable part number	Chemical content	Leadfree Conversion date
PCA9674ABS	PCA9674ABS,118	PCA9674ABS	Always Pb-free
PCA9674AD	PCA9674AD,512	PCA9674AD	Always Pb-free
PCA9674AD	PCA9674AD,518	PCA9674AD	Always Pb-free
PCA9674AN	PCA9674AN,112	PCA9674AN	Always Pb-free
PCA9674APW	PCA9674APW,112	PCA9674APW	Always Pb-free
PCA9674APW	PCA9674APW,118	PCA9674APW	Always Pb-free
PCA9674ATS	PCA9674ATS,112	PCA9674ATS	Always Pb-free
PCA9674ATS	PCA9674ATS,118	PCA9674ATS	Always Pb-free
PCA9674BS	PCA9674BS,118	PCA9674BS	Always Pb-free
PCA9674D	PCA9674D,512	PCA9674D	Always Pb-free
PCA9674D	PCA9674D,518	PCA9674D	Always Pb-free
PCA9674N	PCA9674N,112	PCA9674N	Always Pb-free
PCA9674PW	PCA9674PW,112	PCA9674PW	Always Pb-free
PCA9674PW	PCA9674PW,118	PCA9674PW	Always Pb-free
PCA9674TS	PCA9674TS,112	PCA9674TS	Always Pb-free
PCA9674TS	PCA9674TS,118	PCA9674TS	Always Pb-free

Quality and reliability disclaimer

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Pricing/ordering/availability

Type number	Ordering code(12NC)	Orderable part number	Region	Distributor	In stock	Inventory date	Buy online	Samples
PCA9674ABS	9352 827 39118	PCA9674ABS,118	NA	DIGI-KEY CORPORATION	10,448	11/20/2009	Buy online	Order samples
PCA9674AD	9352 827 41512	PCA9674AD,512						Order samples
PCA9674AD	9352 827 41518	PCA9674AD,518	NA	DIGI-KEY CORPORATION	1,710	11/20/2009	Buy online	not available
PCA9674AN	9352 827 42112	PCA9674AN,112	NA	DIGI-KEY CORPORATION	1,048	11/20/2009	Buy online	Order samples
PCA9674APW	9352 827 43112	PCA9674APW,112						not available
PCA9674APW	9352 827 43118	PCA9674APW,118	NA	DIGI-KEY CORPORATION	4,148	11/20/2009	Buy online	Order samples
			NA	FUTURE ELECTRONICS	100	11/19/2009	Buy online
PCA9674ATS	9352 827 44112	PCA9674ATS,112						not available
PCA9674ATS	9352 827 44118	PCA9674ATS,118	NA	DIGI-KEY CORPORATION	2,500	11/20/2009	Buy online	Order samples
PCA9674BS	9352 827 38118	PCA9674BS,118	NA	DIGI-KEY CORPORATION	11,394	11/20/2009	Buy online	not available
PCA9674D	9352 827 36512	PCA9674D,512						Order samples
PCA9674D	9352 827 36518	PCA9674D,518	NA	DIGI-KEY CORPORATION	1,809	11/20/2009	Buy online	not available
PCA9674N	9352 831 88112	PCA9674N,112	NA	DIGI-KEY CORPORATION	749	11/20/2009	Buy online	Order samples
PCA9674PW	9352 827 35112	PCA9674PW,112						not available
PCA9674PW	9352 827 35118	PCA9674PW,118	NA	MOUSER ELECTRONICS	162	11/20/2009	Buy online	Order samples
			NA	DIGI-KEY CORPORATION	5,001	11/20/2009	Buy online
			NA	MOUSER ELECTRONICS	162	11/20/2009	Buy online
			NA	FUTURE ELECTRONICS	2,500	11/19/2009	Buy online
PCA9674TS	9352 831 89112	PCA9674TS,112						not available
PCA9674TS	9352 831 89118	PCA9674TS,118	NA	DIGI-KEY CORPORATION	5,000	11/20/2009	Buy online	Order samples

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Applications

LED signs and displays
Servers
Industrial control
Medical equipment
PLCs
Cellular telephones
Gaming machines
Instrumentation and test measurement

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Design support

Application Notes

AN10814; Driving stepper motors using NXP I2C-bus GPIO expanders (2009-09-11)

AN10441; Level shifting techniques in I2C-bus design (2007-06-20)

AN256; PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus (2009-03-23)

Support Documents

75016543; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliances (2008-06-01)

UM10206; I2C Demonstration Board 2005-1 Quick Start Guide (2006-06-13)

UM10204; I2C-bus specification and user manual (2007-06-26)

web; IBIS and HSPICE Model ()

75016535; NXP 4/8/16-bit I²C/SMBus GPIO expanders PCA9536/54/54A/55 (2008-08-01)

UM10267; PCA9698 demonstration board OM6281 (2008-09-26)

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Parametrics/similar products

Type number	Package	Operating temp.(Cel)	I²C-bus interface	# of Bits	Interrupt output	Source Current per bit(mA)	I²C-bus(kHz)	Operating voltage(VDC)	Weak Pull-Up Current Source	Max Sink Current per bit(mA)	# of Addresses	Max Sink Current per package(mA)	Reset input pin
PCA9674ABS	SOT758-1 (HVQFN16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674AD	SOT162-1 (SO16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674AN	SOT38-4 (DIP16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674APW	SOT403-1 (TSSOP16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674ATS	SOT266-1 (SSOP20)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674BS	SOT758-1 (HVQFN16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674D	SOT162-1 (SO16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674N	SOT38-4 (DIP16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674PW	SOT403-1 (TSSOP16)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no
PCA9674TS	SOT266-1 (SSOP20)	-40~85	Fast Mode Plus 30 mA SDA outputs for 4000 pF bus	8	yes	0.1	1000	2.3~5.5	yes	25	64	200	no

Similar products
PCA9674/74A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

Datasheet

PCA9674/74A - Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt

General description

Features

Products/packages

Quality/reliability/chemical content

Pricing/ordering/availability

Applications

Design support

Parametrics/similar products

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