TCA9538DBR Part Information

Details for TCA9538DBR by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Driver & Interface ICs

Part Description

The TCA9538 is a 16-pin device that provides 8 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V. The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA9538 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, etc. The features of the TCA9538 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9538 devices on the same I2C bus. The device can also be reset to its default sate by using the RESET feature or by cycling the power supply and causing a power-on reset.

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Part Specifications

Chip Configuration 8bit
Bus Frequency 400kHz
IC Interface Type I2C SMBus
Supply Voltage Min 1.65V
Supply Voltage Max 5.5V
Interface Case Style SSOP
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)
RoHS Compliant

Alternative Part Descriptions

  • 8-Bit I2C Low-Power I/O Expander SSOP16 | RS Components
  • 8-bit 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers | Texas Instruments

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What category does TCA9538DBR fall under?

The TCA9538DBR is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

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You can view similar parts to TCA9538DBR 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 TCA9538DBR RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

Which authorised distributors for TCA9538DBR have stock available?

Authorised distributors including RS Components and Texas Instruments have stock available or on a lead time for TCA9538DBR.

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