PCA9655EMTTXG Standard Logic by ON Semiconductor

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

Status: Active
Series: PCA9655E
RoHS: Compliant
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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.

Prices starting from US$1.37


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$1.37
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Logo for element14 element14 US$2.17
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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
Applications
Input/output Port Expansion for Extended Addressing Capability
End Products
Keyboards

Specifications

Description PCA9655E, I/O Port Expander, I2C, 16-bit, Remote Low Voltage w/Interrupt
Compliance Pb-free Halide free
I/O 16
Cascadable 8 Slave ID Addresses
VCC Min (V) 1.65
VCC Max (V) 5.5
Interrupt Output Yes
I/O Pullups Yes
LED Blink/PWM No
IO Min (mA) 25
Package Type QFN-24

Alternative Descriptions

I/O EXPANDER, 16BIT, 1MHZ, WQFN-24 | Farnell
I2C I/O Expander/Reel |Onsemi PCA9655EMTTXG | Newark Electronics
I/O Expander, 16 Bit, 16 I/Os, I2C, SMBus, 1.65 V to 5.5 V, 24 Pins, WQFN-EP | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a PCA9655EMTTXG?

Additional datasheets, footprints and schematics for PCA9655EMTTXG are listed on our Part Details page. You can also find images and similar parts to PCA9655EMTTXG on this page.

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What category does PCA9655EMTTXG fall under?

The PCA9655EMTTXG is listed under Timing, Logic & Memory > Standard Logic > I/O Expanders.

Can I view similar or alternative parts?

You can view similar parts to PCA9655EMTTXG when available in the I/O Expanders range under the specifications section at the bottom of the details page.

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Is the PCA9655EMTTXG RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ON Semiconductor.

Which authorised distributors for PCA9655EMTTXG have stock available?

Authorised distributors including Farnell, Newark Electronics, element14 and Avnet America have stock available or on a lead time for PCA9655EMTTXG.

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