| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 24 Pin |
| Supply Voltage (DC) | 1.65V (min) |
| Case/Package | TSSOP-24 |
| Number of Outputs | 16 Output |
| Number of Positions | 24 Position |
| Clock Speed | 400 kHz |
| Voltage Nodes | 1.80 V, 2.70 V, 3.30 V, 3.60 V |
| Number of Inputs and Outputs | 16 Input |
| Operating Temperature (Max) | 125 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage | 1.65V ~ 3.6V |
| Supply Voltage (Max) | 3.6 V |
| Supply Voltage (Min) | 1.65 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Operating Temperature | -40℃ ~ 125℃ |
The TCA9539-Q1 is a 24-pin device that provides 16 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 (VCC) range from 1.65 V to 3.6 V. The device supports 100-kHz (I2C Standard mode) and 400-kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539-Q1 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.
●The features of the TCA9539-Q1 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 TCA9539-Q1 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on-reset. Also, the TCA9539-Q1 has a hardware RESET pin that can be used to reset the device to its default state.
●The TCA9539-Q1 I2C I/O expander is qualified for automotive applications.
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