PCA9674TS,118

Product Overview

Category

PCA9674TS,118 belongs to the category of integrated circuits (ICs).

Use

The PCA9674TS,118 is commonly used as an I/O expander for microcontrollers. It provides additional input/output ports, allowing the microcontroller to interface with a larger number of devices.

Characteristics

• I2C-bus controlled 8-bit I/O expander
• Low standby current consumption
• Schmitt-trigger action on all inputs
• Open-drain interrupt output
• 5 V tolerant inputs
• 400 kHz Fast-mode Plus I2C-bus
• ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

Package

The PCA9674TS,118 is available in a small TSSOP package.

Essence

The essence of PCA9674TS,118 lies in its ability to expand the input/output capabilities of microcontrollers, enabling them to connect with a greater number of peripheral devices.

Packaging/Quantity

The PCA9674TS,118 is typically sold in reels, with each reel containing a specified quantity of ICs. The exact quantity may vary depending on the manufacturer.

Specifications

• Supply voltage: 2.3 V to 5.5 V
• Input voltage range: GND to VDD
• Operating temperature range: -40°C to +85°C
• I2C-bus frequency: Up to 400 kHz
• Number of I/O pins: 8

Detailed Pin Configuration

The PCA9674TS,118 has a total of 16 pins, which are assigned specific functions as follows:

1. SDA - Serial Data Input/Output
2. SCL - Serial Clock Input
3. A0 - Address Input Bit 0
4. A1 - Address Input Bit 1
5. A2 - Address Input Bit 2
6. RESET - Reset Input
7. INT - Interrupt Output
8. GND - Ground
9. P00 - I/O Port 0
10. P01 - I/O Port 1
11. P02 - I/O Port 2
12. P03 - I/O Port 3
13. P04 - I/O Port 4
14. P05 - I/O Port 5
15. P06 - I/O Port 6
16. VDD - Supply Voltage

Functional Features

• Expandable I/O ports for microcontrollers
• Easy interfacing with the I2C-bus
• Low power consumption in standby mode
• Schmitt-trigger action ensures reliable input signal detection
• Open-drain interrupt output for efficient communication

Advantages and Disadvantages

Advantages

• Provides additional I/O ports, enhancing the connectivity of microcontrollers
• Supports fast data transfer through the I2C-bus
• Low power consumption in standby mode helps conserve energy
• Robust input signal detection due to Schmitt-trigger action
• Interrupt output facilitates efficient communication

Disadvantages

• Limited number of I/O pins (8 in total)
• Requires an external microcontroller for operation

Working Principles

The PCA9674TS,118 operates by receiving commands from a microcontroller via the I2C-bus. It expands the available I/O ports by providing an additional 8-bit I/O expander. The microcontroller can control the input/output states of these ports using the I2C-bus communication protocol.

Detailed Application Field Plans

The PCA9674TS,118 finds applications in various fields where there is a need for expanding the I/O capabilities of microcontrollers. Some potential application areas include:

1. Home automation systems
2. Industrial control systems
3. Robotics
4. Internet of Things (IoT) devices
5. Automotive electronics

Detailed and Complete Alternative Models

1. PCA9670TS,118 - 8-bit I/O expander with similar features but a different pin configuration.
2. PCA9671TS,118 - 16-bit I/O expander offering twice the number of I/O ports compared to PCA9674TS,118.
3. PCA9675TS,118 - 16-bit I/O expander with additional features such as programmable polarity inversion and individual I/O configuration.

These alternative models provide similar functionality to the PCA9674TS,118 but may have different pin configurations or additional features to suit specific requirements.

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