PCA9535 Status: ACTIVE

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers

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Datasheet

Remote 16-Bit I2C and SMBus Low-Power I/O Expander (Rev. I) (PDF 1111 KB)
07 May 2008

	PCA9535
No. of Outputs	2
Interrupt Output	Yes
fSCLK(Max)(MHz)	400
VCC(Min)(V)	2.3
VCC(Max)(V)	5.5
Pin/Package	24QFN, 24SSOP, 24SSOP/QSOP, 24SOIC, 24TSSOP, 24TVSOP, 24VQFN
Operating Temp Range(Celsius)	-40 to 85
Max Frequency(kHz)	400
I2C Address	0100 xxx
# of I/Os	16
Vcc range(V)	2.3 to 5.5
Low Power	Yes
Configuration Registers	Yes
5V Tolerant I/O	Yes
Push–Pull I/O Type	Yes
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

PCA9555: Remote 16-Bit I2C And SMBus I/O Expander With Interrupt Output And Configuration Registers
TCA9535: Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers
SN74CBTLV3257: Low-Voltage 4-Bit 1-Of-2 FET Multiplexer/Demultiplexer
SN74LVC1G125: Single Bus Buffer Gate With 3-State Outputs
MAX3221: 3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver

Product Information

Features

Low Standby-Current Consumption of 1 µA Max
I²C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I²C Bus
Address by Three Hardware Address Pins for Use of up to Eight Devices
Polarity Inversion Register
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)

DESCRIPTION/ORDERING INFORMATION

This 16-bit I/O expander for the two-line bidirectional bus (I²C) is designed for 2.3-V to 5.5-V V_CC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL), serial data (SDA)].

The PCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.

The system master can reset the PCA9535 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the registers in their default state and initializes the I²C/SMBus state machine.

The PCA9535 open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed.

INT can be connected to the interrupt input of a 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. Thus, the PCA9535 can remain a simple slave device.

The device outputs (latched) have high-current drive capability for directly driving LEDs. The device has low current consumption.

Although pin-to-pin and I²C address compatible with the PCF8575, software changes are required due to the enhancements.

The PCA9535 is identical to the PCA9555, except for the removal of the internal I/O pullup resistor, which greatly reduces power consumption when the I/Os are held low.

Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I²C address and allow up to eight devices to share the same I²C bus or SMBus. The fixed I²C address of the PCA9535 is the same as the PCA9555, PCF8575, PCF8575C, and PCF8574, allowing up to eight of these devices in any combination to share the same I²C bus or SMBus.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
PCA9535DB	ACTIVE	-40 to 85	1.10 \| 1ku	SSOP (DB) \| 24	View	60 \| TUBE		Purchase Samples
PCA9535DBG4	ACTIVE	-40 to 85	1.10 \| 1ku	SSOP (DB) \| 24	View	60 \| TUBE	Purchase Samples
PCA9535DBQR	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R
PCA9535DBQRG4	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP/QSOP (DBQ) \| 24	View	2500 \| LARGE T&R
PCA9535DBR	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP (DB) \| 24	View	2000 \| LARGE T&R
PCA9535DBRG4	ACTIVE	-40 to 85	1.00 \| 1ku	SSOP (DB) \| 24	View	2000 \| LARGE T&R
PCA9535DGVR	ACTIVE	-40 to 85	1.00 \| 1ku	TVSOP (DGV) \| 24		2000 \| LARGE T&R
PCA9535DGVRG4	ACTIVE	-40 to 85	1.00 \| 1ku	TVSOP (DGV) \| 24		2000 \| LARGE T&R
PCA9535DW	ACTIVE	-40 to 85	1.10 \| 1ku	SOIC (DW) \| 24	View	25 \| TUBE		Purchase Samples
PCA9535DWG4	ACTIVE	-40 to 85	1.10 \| 1ku	SOIC (DW) \| 24	View	25 \| TUBE	Purchase Samples
PCA9535DWR	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (DW) \| 24	View	2000 \| LARGE T&R
PCA9535DWRG4	ACTIVE	-40 to 85	1.00 \| 1ku	SOIC (DW) \| 24	View	2000 \| LARGE T&R
PCA9535PW	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
PCA9535PWE4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE		Purchase Samples
PCA9535PWG4	ACTIVE	-40 to 85	1.10 \| 1ku	TSSOP (PW) \| 24	View	60 \| TUBE	Purchase Samples
PCA9535PWR	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
PCA9535PWRE4	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
PCA9535PWRG4	ACTIVE	-40 to 85	1.00 \| 1ku	TSSOP (PW) \| 24	View	2000 \| LARGE T&R
PCA9535RGER	ACTIVE	-40 to 85	1.00 \| 1ku	VQFN (RGE) \| 24	View	3000 \| LARGE T&R
PCA9535RGERG4	ACTIVE	-40 to 85	1.00 \| 1ku	VQFN (RGE) \| 24	View	3000 \| LARGE T&R
PCA9535RTWR	ACTIVE	-40 to 85	1.00 \| 1ku	QFN (RTW) \| 24		3000 \| LARGE T&R
PCA9535RTWRG4	ACTIVE	-40 to 85	1.00 \| 1ku	QFN (RTW) \| 24		3000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 11:35 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksPCA9535DB
Americas	Arrow	600
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	300
Europe	EBV Elektronik	60
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	234
TI Lead Time*: 15 WeeksPCA9535DBG4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksPCA9535DBQR
Americas	Arrow	>1k
Americas	Avnet	>1k
Worldwide	DigiKey	996
Worldwide	Mouser Electronics	590
TI Lead Time*: 15 WeeksPCA9535DBQRG4
Worldwide	DigiKey	Available
TI Lead Time*: 11 WeeksPCA9535DBR
Americas	Arrow	>1k
Americas	Avnet	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	999
TI Lead Time*: 11 WeeksPCA9535DBRG4
Worldwide	DigiKey	Available
TI Lead Time*: 11 WeeksPCA9535DGVR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 11 WeeksPCA9535DGVRG4
Worldwide	DigiKey	Available
TI Lead Time*: 11 WeeksPCA9535DW
Americas	Arrow	1k
	Newark	103
	Rochester Electronics	>1k
Asia	Farnell Asia	103
Europe	Avnet-SILICA	625
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	89
TI Lead Time*: 11 WeeksPCA9535DWG4
Europe	EBV Elektronik	75
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksPCA9535DWR
Americas	Arrow	>1k
	Avnet	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	>1k
Asia	WPI	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksPCA9535DWRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksPCA9535PW
Americas	Arrow	>1k
	Avnet	240
	Newark	6
Asia	WPI	148
Europe	Arrow Southern Europe	180
Europe	Avnet-SILICA	>1k
Worldwide	Mouser Electronics	21
TI Lead Time*: 20 WeeksPCA9535PWE4
None Reported View Distributors
TI Lead Time*: 20 WeeksPCA9535PWG4
None Reported View Distributors
TI Lead Time*: 20 WeeksPCA9535PWR
Americas	Avnet	>1k
	Newark	36
	Rochester Electronics	>1k
Asia	Farnell Asia	309
Europe	Arrow Southern Europe	>1k
	Avnet-SILICA	>1k
	Farnell	309
TI Lead Time*: 20 WeeksPCA9535PWRE4
None Reported View Distributors
TI Lead Time*: 20 WeeksPCA9535PWRG4
None Reported View Distributors
TI Lead Time*: 17 WeeksPCA9535RGER
Americas	Rochester Electronics	>1k
Asia	WPI	>1k
Europe	Avnet-SILICA	>1k
Worldwide	DigiKey	136
TI Lead Time*: 17 WeeksPCA9535RGERG4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksPCA9535RTWR
Americas	Arrow	>1k
Asia	WPI	>1k
TI Lead Time*: 18 WeeksPCA9535RTWRG4
None Reported View Distributors
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
PCA9535DB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DBQR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
PCA9535DBQRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
PCA9535DBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DGVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DGVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535DWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
PCA9535RGER	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
PCA9535RGERG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
PCA9535RTWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
PCA9535RTWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for PCA9535

Datasheet

Remote 16-Bit I2C and SMBus Low-Power I/O Expander (Rev. I) (PDF, 1111 KB)
07 May 2008

Application Notes

Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26941 views
24 May 2004 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21328 views
28 May 2003 Read Abstract
Programming Fun Lights With TI's TCA6507 (HTM, 8 KB) 3455 views
30 Nov 2007 Read Abstract

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 88336 views
23 Jul 2009
I2C Guide (Rev. B) (PDF, 2830 KB) 12794 views
12 Aug 2009

Part #	Name	Product Family	Comments
TCA9535	Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers	I2C (SL) - I2C IO EXPANDERS	The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent. It is an enhanced version of the PCA9535 with an extended supply voltage range and performance enhancements related to Power-On Reset and Interrupt.
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All End-Equipment

PCA9535 Status: ACTIVE

Remote 16-Bit I2C and SMBus, Low-Power I/O Expander With Interrupt Output and Config Registers

See Also

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Datasheet

Customers Who Evaluated This Product Also Evaluated