STMPE2403TBR

Series:	Xpander Logic™
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Number of I/O:	24
Interface:	I²C
Interrupt Output:	Yes
Features:	Keypad Controller, POR, PWM
Output Type:	Push-Pull
Current - Output Source/Sink:	--
Clock Frequency:	400kHz
Voltage - Supply:	1.65 V ~ 1.95 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	36-TFBGA
Supplier Device Package:	36-TFBGA (3.5x3.5)
Base Part Number:	STMPE2403

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Introduction
The STMPE2403TBR is a registered I/O expander device that can be used to expand a system’s I/O capabilities. This device has multiple applications areas, with different working principles. In this article, we will discuss the application areas and working principles of the STMPE2403TBR.

Application Areas of STMPE2403TBR
The STMPE2403TBR I/O expander can be used in a wide range of applications. It is ideal for applications where higher integration and low power are necessary. It has been used in automation systems, lighting systems, automotive applications, smart home applications, and many other embedded systems. It is also well-suited to portable devices like tablets or hand-held computers.

Key Features of STMPE2403TBR
The STMPE2403TBR has a number of features that make it particularly well-suited for embedded systems. It is a low-power device, with a quiescent current of only 50µA. It has a large range of I/O pins, with 24 general-purpose I/O pins, 8 pull-up I/O pins, 1 GPIO interrupt pin, and 2 SDA/SCL I/O pins. It is a fully linear device, with no need for an external oscillator. It supports both 3.3V and 5V power supplies, and is capable of operating in both 5.6V, as well as 5V environments. The device has both an addressable I/O expander based on the I2C interface, and register-based I/O expander based on the SPI interface. It also supports temperature sensing and level-shifting, making it well-suited for a wide range of applications.

Working Principle of STMPE2403TBR
The STMPE2403TBR I/O expander works by taking data from an external I/O pin and sending it to an internal register. The data can then be manipulated and stored by the device’s internal processor. To control the device, the user can use one of two communication interfaces: an I2C or SPI interface. The I2C interface can be used to program the device’s registers and control its functionality, while the SPI interface can be used to route data quickly between the external registers and the internal processor. The device also supports level-shifting, allowing for very clean signal transfer in applications with multiple voltage levels.

Conclusion
The STMPE2403TBR is a registered I/O expander device that can be used to expand a system’s I/O capabilities. It is ideal for applications where higher integration and low power are necessary. Its application areas include automation systems, lighting systems, automotive applications, smart home applications, and many other embedded systems. It has a number of features, including a low quiescent current, a large range of I/O pins, a fully linear device, and support for both 3.3V and 5V power supplies. It works by taking data from an external I/O pin and sending it to an internal register, and its I2C and SPI interfaces can be used to program the device or quickly route data. In conclusion, the STMPE2403TBR is a versatile and reliable I/O expander that is well-suited to a wide range of applications.

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