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TCA6408ARSVR

Name: TCA6408ARSVR
Rating: 4.7 (12 reviews)

IC I/O EXPANDER I2C 8B 16QFN

製造商
製造商。部分 #TCA6408ARSVR
包 UQFN (RSV)-16
資料表
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規格

Package	Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus	Active
NumberofI/O	8
Interface	I²C, SMBus
InterruptOutput	Yes
Features	POR
OutputType	Push-Pull
Current-OutputSource/Sink	10mA, 25mA
ClockFrequency	400 kHz
Voltage-Supply	1.65V ~ 5.5V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	16-UFQFN

概述

Description

The TCA6408ARSVR is an 8-channel I/O expander from Texas Instruments, designed to interface with microcontrollers via the I²C bus. It provides additional GPIO (General Purpose Input/Output) capability, allowing for more I/O pins than the microcontroller may natively support. The device operates within a voltage range of 1.65V to 5.5V, making it suitable for various voltage levels in digital applications.
Key features include:
- 8 programmable I/O pins that can be configured as inputs or outputs.
- I²C interface for easy communication with microcontrollers.
- Interrupt output for signal changes, enhancing responsiveness in applications.
- A wide operating temperature range, making it suitable for industrial and consumer applications.
The TCA6408ARSVR is typically used in scenarios where additional I/O is necessary, such as controlling LEDs, reading switches, or expanding sensor inputs. Its compact package and flexibility make it ideal for space-constrained designs.

Features

The TCA6408ARSVR is an I²C-compatible GPIO expander that features:
1. I²C Interface: Supports standard I²C communication for easy integration with microcontrollers.
2. 16 GPIO Pins: Provides 16 general-purpose input/output pins, configurable as input or output.
3. Interrupt Capability: Features interrupt output to signal the host when inputs change state, allowing for efficient monitoring.
4. Multiple Device Support: Can connect multiple TCA6408 devices on the same I²C bus by utilizing different addresses.
5. Wide Voltage Range: Operates from a supply voltage of 1.65V to 5.5V, making it suitable for various applications.
6. Low Power Consumption: Designed for low power usage, enhancing battery life in portable devices.
7. Pull-Up Resistors: Internal pull-up resistors on input pins simplify design by reducing external component count.
These features make the TCA6408ARSVR ideal for expanding I/O capabilities in microcontroller applications, especially in embedded systems.

Package

The TCA6408ARSVR is packaged in a VQFN (Very Thin Quad Flat No-lead) package, specifically a 32-pin VQFN. This compact package type is designed for surface mounting, offering a low profile and efficient thermal performance.

Pinout

The TCA6408ARSVR is an 8-bit I2C I/O expander with an active low interrupt output. It has a total of 16 pins.
Pin Count and Functions:
1. VCC - Power supply (2.3 V to 5.5 V)
2. GND - Ground
3. SDA - Serial Data Line for I2C communication
4. SCL - Serial Clock Line for I2C communication
5. INT - Interrupt output (active low)
6. A0, A1, A2 - Address selection pins (for setting I2C address)
7. GPIO0 to GPIO7 - 8 general-purpose input/output pins (can be configured as inputs or outputs)
The TCA6408ARSVR allows microcontrollers to expand their GPIO capabilities via I2C, making it suitable for applications where additional digital I/O ports are needed.

Manufacturer

The TCA6408ARSVR is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Texas Instruments designs and produces a wide range of analog, embedded processing, and digital signal processing (DSP) solutions. The company is well-known for its innovation in the electronics industry, providing integrated circuits (ICs) used in various applications, including automotive, industrial, consumer electronics, and telecommunications. With a strong focus on research and development, TI is recognized for its commitment to advancing technology and supporting engineers in designing high-performance systems.

Application

The TCA6408ARSVR is an I2C I/O expander used in various applications such as microcontroller interfacing, GPIO expansion, LED control, and button matrix scanning. It is ideal for enhancing the input/output capabilities of embedded systems, enabling communication with multiple peripherals while conserving microcontroller pins. Commonly found in consumer electronics, automotive systems, and industrial automation, it facilitates efficient management of additional inputs and outputs in compact designs.

Equivalent

The TCA6408ARSVR is an I2C I/O expander. Equivalent products include:
1. PCA9535
2. MCP23008
3. PCF8574
These alternatives offer similar functionality with I2C communication, GPIO expansion, and varying numbers of ports. Always check specifications for compatibility.