PCA9502BS,157

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PCA9502BS,157 is an interface and I/O Expander designed by NXP Semiconductor. It is a programmable I/O Expander device that provides eight bits of general-purpose parallel I/O expansion for I2C-bus/ SMBus applications. It offers two 16-bit programmable timers/counters, four general-purpose bidirectional open-drain I/O pins, a programmable interrupt source, and a configurable interrupt output pin. The device also features a low-voltage reset/interrupt input port and supply voltage monitoring capability.

The PCA9502BS,157 has many unique features, such as a wide operating voltage range from 1.7V to 5.5V, programmable I/O pull-up resistors, configurable interrupt sources, and a low-power sleep mode. It is suitable for a wide range of applications, including remote control systems, lighting control systems, industrial control systems, surge protection and power distribution systems, and automotive applications.

The device’s I2C-bus/SMBus serial interface consists of a serial data line (SDA) and a serial clock line (SCL). It is designed to provide an interface between the host controller and the PCA9502BS,157. The I2C-bus/SMBus protocol is used to communicate with the device. The host controller can write commands to the device or read data from it. The device also supports the SMBusAlert protocol, which is used for interrupt communication.

When operating in sleep mode, the PCA9502BS,157 can reduce its power consumption to less than 5μA. This is accomplished by shutting down the oscillator and disabling the I/O pins. The device can also be used in low-voltage applications. It has an input voltage range of 1.7V to 5.5V, and it can detect out-of-range voltages as low as 1.7V. This makes it suitable for applications where low power consumption is a requirement.

The PCA9502BS,157 is designed to be easily integrated into systems. It is available in a 16-lead TSSOP package, making it easy to mount on printed circuit boards (PCBs). The device is RoHS compliant and UL recognized. It is also compatible with a wide range of microcontrollers, such as the 8051 and ARM Cortex-M3.

In conclusion, the PCA9502BS,157 is a programmable I/O Expander device that can be used for a variety of applications. Its features include an operating voltage range of 1.7V to 5.5V, a low-power sleep mode, and support for I2C-bus/SMBus protocols. The device also has an input voltage range of 1.7V to 5.5V, which makes it suitable for use in low-power applications. The device is available in a 16-lead TSSOP package and is RoHS compliant and UL recognized.

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