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See Technical Specifications

PCA9655EDWR2G

I/O Port Expander, I2C, 16-bit, Remote Low Voltage w/Interrupt

Manufacturer:

ON Semiconductor, LLC
Mfr.Part #:

PCA9655EDWR2G
Datasheet:

PCA9655EDWR2G Datasheet (PDF)
Case Outline:

0.0751
MSL Temp (°C):

260
Container Type:

REEL
Programmabe:

Not Verified
EDA/CAD Models:

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PCA9655EDWR2G General Description

The PCA9655E provides 16 bits of General Purpose parallel Input and Output (GPIO) expansion through the I2C-bus and SMBus. The PCA9655E consists of two 8-bit Configuration (Input or Output selection); Input, Output and Polarity Inversion (active-HIGH) or active-LOW operation) registers. At power on, all IOs default to inputs. Each IO may be configured as either input or output by writing to its corresponding IO configuration bit. The data for each Input or Output is kept in its corresponding Input or Output register. The Polarity Inversion register may be used to invert the Polarity if the read register. All registers can be read by the system master. The PCA9655E provides an open-drain interrupt output which is activated when any input state differs from its corresponding input port register state. The interrupt output is used to indicate to the system master that an input state has changed. The power-on reste sets the registers to their default values and initializes the device state machine. Three hardware pins (AD0, AD1, AD2) are used to configure the I2C-bus slave address of the device. Up to 64 devices are allowed to share the same I2C-bus and SMBus.

Key Features

VCC Operating Range: 1.65 V to 5.5 V
SDA Sink Capability: 30 mA
5.5 V Tolerant I/Os
Polarity Inversion Register
Active LOW Interrupt Output
Low Standby Current
Noise Filter on SCL/SDA Inputs
No Glitch on Powerup
Internal Poweron Reset
64 Programmable Slave Addresses Using Three Address Pins
16 I/O Pins Which Default to 16 Inputs
I2C SCL Clock Frequencies Supported:Standard Mode: 100 kHz/Fast Mode: 400 kHz/Fast Mode +: 1 MHz
ESD Performance: 2000 V Human Body Model,200 V Machine Model

Application

Input/output Port Expansion for Extended Addressing Capability

Specifications

Status	Active	Case Outline	0.0751
MSL Temp (°C)	260	Container Type	REEL
Programmabe	Not Verified	Number of I/O	16
Interface	I2C, SMBus	Interrupt Output	Yes
Features	POR	Output Type	Push-Pull
Current - Output Source/Sink	42mA	Clock Frequency	100 kHz
Voltage - Supply	1.65V ~ 5.5V	Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	PCA9655