PCA9536DG4

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The PCA9536DG4 is an interface and I/O expander IC from Texas Instruments (TI), typically used for digital control of peripheral devices. The device features high level integration, providing four single-ended I/O lines with programmable interrupt-on-change capability, making it ideal for use in space-critical, portable and harsh environment applications. The device\'s simple architecture and feature set makes it ideal for applications where minimal external components are desired, particularly battery-powered devices. The integrated three-level logic ensures compatibility with 3.3V, 5V and even 1.8V logic families, making it suitable for interface communication with different peripherals. The device can be controlled in a variety of ways, including the standard I2C or SMBus protocol, and GPIOs.The device\'s I/O lines can be configured in different operating modes. The Input Mode allows the single-ended I/O lines to be used to monitor device levels. The Output Mode allows the I/O lines to be used to control device states such as on/off, open/close and enable/disable. Additionally, the PCA9536DG4 allows for the configuration of inverted polarity for the Input Mode, so the device can be used to detect high or low logic level.The device can also be used to generate interrupts when external changes occur. The interrupt capability is provided through a programmable interrupt-on-change (IOCT) feature which allows the I/O lines to trigger an interrupt upon a change in logic level. This feature reduces the overhead associated with regularly checking the states of peripherals since the I/O lines generate an interrupt on change. The PCA9536DG4 is configured with I2C or SMBus protocol via the serial bus or with GPIOs after power on. The device also has a Wake-Up feature that an external device can use to wake the device from an idle state.The PCA9536DG4 is available in a wide range of packages and can operate over an extended temperature range from -40°C to+85 °C. It is also offered in different grades such as Automotive Grade, Industrial Grade and Standard Grade, making it suitable for different applications and environments. In summary, the PCA9536DG4 is an ideal interface and I/O expander device for applications where high level integration, four single-ended I/O lines and programmable interrupt-on-change capability is needed. The device provides two different operating modes, as well as Wake-Up toggle and interrupt-on-change feature and is available in a wide range of packages, making it suitable for a variety of applications.

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