PCA9534APWR Semiconductors - ICs by Texas Instruments

I/O EXPANDER 8BIT I2C 400KHZ TSSOP16

Status: Unknown
Series: -
RoHS: Unknown
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This 8-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 PCA9534A consists of one 8-bit configuration (input or output selection), input port, output port, and polarity inversion (active high or active low) register. At power on, the I/Os are configured as inputs. However, 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. The system master can reset the PCA9534A 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 PCA9534A 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. The PCA9534A and PCA9534 are identical, except for their fixed I2C address. This allows for up to 16 of these devices (8 of each) on the same I2C bus.

Prices starting from US$0.67


Distributor Starting From Stock
Logo for Texas Instruments Texas Instruments US$0.67
17,790
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Logo for Chip One Stop Chip One Stop US$0.89
1,994
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Logo for Newark Electronics Newark Electronics US$1.83
693
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Logo for element14 element14 US$0.93
671
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Specifications

Chip Configuration 8bit
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 2.3V
Supply Voltage Max 5.5V
Interface Case Style TSSOP
No. of Pins 16Pins
No. of I/O's 8I/O's
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt & config registers | Texas Instruments
I/O Expander, 8Bit, I2C, 400Khz, Tssop16 | Newark Electronics
I/O EXPANDER, 8BIT, I2C, 400KHZ, TSSOP16 | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a PCA9534APWR?

Additional datasheets, footprints and schematics for PCA9534APWR are listed on our Part Details page. You can also find images and similar parts to PCA9534APWR on this page.

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What category does PCA9534APWR fall under?

The PCA9534APWR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to PCA9534APWR when available in the Driver & Interface ICs range under the specifications section at the bottom of the details page.

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Is the PCA9534APWR RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Texas Instruments, Chip One Stop, Newark Electronics, Farnell and element14 have stock available or on a lead time for PCA9534APWR.

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