PCA9535EMTTXG

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PCA9535EMTTXG

IC I/O EXPANDER 16B 24WQFN

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Spezifikationen

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Active
NumberofI/O 16
Interface I²C, SMBus
InterruptOutput Yes
Features POR
OutputType Push-Pull
Current-OutputSource/Sink 10mA, 25mA
ClockFrequency 100 kHz
Voltage-Supply 1.65V ~ 5.5V
OperatingTemperature -55°C ~ 125°C
MountingType Surface Mount
Package/Case 24-WFQFN Exposed Pad

Übersicht

Description

The PCA9535EMTTXG is an I2C-bus I/O port expander designed by NXP Semiconductors. It features 16 GPIO pins that can be configured as either input or output, enabling the expansion of microcontroller I/O capabilities. The device operates over a supply voltage range of 2.3V to 5.5V and communicates via the I2C interface, allowing it to connect to multiple devices on the same bus.
Key features include programmable interrupt capabilities, which alert the host device to changes in input states, and the ability to drive up to 25 mA per output, accommodating various connected components. The PCA9535EMTTXG is ideal for applications requiring additional I/O lines, such as LED control, button input, or sensor interfacing in embedded systems. Its small package size and low power consumption make it suitable for space-constrained and battery-operated devices.

Features

The PCA9535EMTTXG is a I2C-bus I/O port expander with 16 bits of general-purpose I/O. Key features include:
1. 16 GPIO Pins: Configurable as input or output, enabling flexibility in interfacing with various peripherals.
2. I2C Interface: Supports standard and fast modes (up to 1 MHz) for easy communication with microcontrollers.
3. Multiple Device Support: Up to 8 PCA9535 devices can be connected on the same I2C bus using different addresses.
4. Interrupt Capability: Provides an interrupt output for pin state changes, facilitating efficient event-driven designs.
5. Power Supply Voltage: Operates from a supply voltage of 1.65 V to 5.5 V, making it suitable for a range of applications.
6. Low Power Consumption: Designed for low power operation, ideal for battery-operated devices.
7. Pull-Up Resistors: Integrated pull-up resistors on the I/O pins for ease of use in input configurations.
These features make the PCA9535EMTTXG suitable for applications such as GPIO expansion and interfacing in embedded systems.

Package

The PCA9535EMTTXG is packaged in a TSSOP-16 (Thin Shrink Small Outline Package) format.

Pinout

The PCA9535EMTTXG is a 16-pin I²C I/O port expander designed for GPIO expansion. It features 16 I/O pins that can be individually configured as inputs or outputs. The device communicates via the I²C bus, allowing multiple PCA9535 devices to be connected on the same bus.
### Pin Count and Function:
- Total Pins: 16
- Key Pins:
- VDD (Pin 1): Power Supply
- GND (Pin 8): Ground
- SDA (Pin 2): I²C Serial Data Line
- SCL (Pin 3): I²C Serial Clock Line
- RESET (Pin 4): Active low reset pin
- P0-P7 (Pins 5-7, 9-12): GPIO pins, configurable as inputs or outputs
- INT (Pin 15): Interrupt output pin, signals changes in input states.
This device is widely used in applications requiring additional I/O capabilities while minimizing pin usage on microcontrollers.

Manufacturer

The PCA9535EMTTXG is manufactured by NXP Semiconductors, a global semiconductor company that specializes in developing mixed-signal and standard products. NXP focuses on automotive, IoT, mobile, and industrial applications, providing a wide range of solutions including microcontrollers, processors, sensors, and connectivity solutions. The PCA9535EMTTXG is an I/O expander with I2C interface, commonly used to increase the number of input and output pins available to microcontrollers. NXP is known for its innovation and quality in the semiconductor industry, serving a diverse clientele across various sectors.

Application

The PCA9535EMTTXG is an I2C-bus I/O port with interrupt capabilities, commonly used in various applications such as consumer electronics, automotive systems, and industrial control. It serves to expand GPIOs for microcontrollers, enabling additional input/output functions in devices like keyboards, LED displays, and sensor interfaces. Its ability to manage multiple devices on a single bus makes it ideal for compact and efficient designs in embedded systems.

Equivalent

The PCA9535EMTTXG chip can be equivalently replaced by similar I2C GPIO expanders such as the MCP23017, TCA9555, and the PCF8575. These devices offer similar functionalities for I/O expansion, although specific features and pin counts may vary. Always check datasheets for compatibility regarding voltage levels, pin configurations, and other specifications.

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