Name: I/O Port Expander, I 2 C, 16-bit, Remote Low Voltage w/Interrupt
Brand: I/O Port Expander, I 2 C, 16-bit, Remote Low Voltage w/Interrupt
SKU: PCA9655E

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

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Overview

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.

Applications

Input/output Port Expansion for Extended Addressing Capability

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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

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Reference Price

PCA9655EDTR2G

Last Shipments

TSSOP-24

948H-01

260

REEL

2500

8 Slave ID Addresses

1.65

5.5

Yes

Price N/A

PCA9655EDWR2G

Last Shipments

SOIC鈭�24 WB

0.0751

260

REEL

1000

8 Slave ID Addresses

1.65

5.5

Yes

Price N/A

PCA9655EMTTXG

Last Shipments

QFN-24

485BG

260

REEL

3000

8 Slave ID Addresses

1.65

5.5

Yes

Price N/A

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I/O Expanders | PCA9655E

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

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