TCAL9539-Q1 Series
Automotive 16-bit low voltage I²C/SMBus I/O expander w/interrupt, reset and agile I/O configuration
Manufacturer: Texas Instruments
Catalog
Automotive 16-bit low voltage I²C/SMBus I/O expander w/interrupt, reset and agile I/O configuration
Key Features
• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T AFunctional safety-capableDocumentation available to aid in functional safety system designOperating power-supply voltage range of 1.08 V to 3.6 VLow standby current consumption of 1 µA typical at 1.8 V1-MHz fast mode plus I 2C busHardware address pin allows two devices on the same I 2C, SMBus busActive-low reset input ( RESET )Open-drain active-low interrupt output ( INT )Input or output configuration registerPolarity inversion registerConfigurable I/O drive strength registerPull-up and pull-down resistor configuration registerInternal power-on resetNoise filter on SCL or SDA inputsLatched outputs with high-current drive maximum capability for directly driving LEDsLatch-up performance exceeds 100 mA per AEC Q100-004ESD protection exceeds AEC - Q100 requirements4000-V Human-body model (AEC - Q100-002)1000-V Charged-device model (AEC - Q100-011)AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T AFunctional safety-capableDocumentation available to aid in functional safety system designOperating power-supply voltage range of 1.08 V to 3.6 VLow standby current consumption of 1 µA typical at 1.8 V1-MHz fast mode plus I 2C busHardware address pin allows two devices on the same I 2C, SMBus busActive-low reset input ( RESET )Open-drain active-low interrupt output ( INT )Input or output configuration registerPolarity inversion registerConfigurable I/O drive strength registerPull-up and pull-down resistor configuration registerInternal power-on resetNoise filter on SCL or SDA inputsLatched outputs with high-current drive maximum capability for directly driving LEDsLatch-up performance exceeds 100 mA per AEC Q100-004ESD protection exceeds AEC - Q100 requirements4000-V Human-body model (AEC - Q100-002)1000-V Charged-device model (AEC - Q100-011)
Description
AI
The TCAL9539-Q1 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I 2C bus (or SMBus) protocol and is designed for 1.08-V to 3.6-V V CC operation.
The device supports 100-kHz (Standard-mode), 400-kHz (Fast-mode), and 1-MHz (fast-mode-plus) I 2C clock frequencies. I/O expanders such as the TCAL9539-Q1 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so on.
The TCAL9539-Q1 has Agile I/O ports which include additional features designed to enhance the I/O performance in terms of speed, power consumption and EMI. The additional features are: programmable output drive strength, programmable pull-up and pull-down resistors, latchable inputs, maskable interrupt, interrupt status register, and programmable open-drain or push-pull outputs.
The TCAL9539-Q1 device provides general purpose parallel input/output (I/O) expansion for the two-line bidirectional I 2C bus (or SMBus) protocol and is designed for 1.08-V to 3.6-V V CC operation.
The device supports 100-kHz (Standard-mode), 400-kHz (Fast-mode), and 1-MHz (fast-mode-plus) I 2C clock frequencies. I/O expanders such as the TCAL9539-Q1 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so on.
The TCAL9539-Q1 has Agile I/O ports which include additional features designed to enhance the I/O performance in terms of speed, power consumption and EMI. The additional features are: programmable output drive strength, programmable pull-up and pull-down resistors, latchable inputs, maskable interrupt, interrupt status register, and programmable open-drain or push-pull outputs.