PCA9555DWR Semiconductors - ICs by Texas Instruments

I/O EXPANDER 16BIT 400KHZ SOIC-24

Status: Unknown
Series: -
RoHS: Unknown
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This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. The PCA9555 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 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.

Where to Buy

Prices starting from US$0.68

Distributor Stock
Logo for Farnell
Farnell
from US$1.64
175
in stock
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Logo for Newark Electronics
Newark Electronics
from US$1.63
175
in stock
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Logo for element14
element14
from US$2.04
175
in stock
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Logo for Micros
Micros
from US$1.72
60
in stock
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Logo for Texas Instruments
Texas Instruments
from US$0.68
-
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Specifications

Chip Configuration 16bit
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 2.3V
Supply Voltage Max 5.5V
Interface Case Style SOIC
No. of Pins 24Pins
No. of I/O's 16I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

Ic, I/O Expander, 16Bit, 24Soic | Newark Electronics
IC, I/O EXPANDER, 16BIT, 24SOIC | element14
16-bit I/O Expander w/ Interrupt | Micros
16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers | Texas Instruments


Frequently Asked Questions

Where can I find additional details, specifications and documents for a PCA9555DWR?

Additional datasheets, footprints and schematics for PCA9555DWR are listed on our Part Details page. You can also find images and similar parts to PCA9555DWR on this page.

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What category does PCA9555DWR fall under?

The PCA9555DWR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

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Is the PCA9555DWR RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Newark Electronics, element14, Farnell, Micros and Texas Instruments have stock available or on a lead time for PCA9555DWR.

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