MAX7321ATE+T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Number of I/O:	8
Interface:	I²C
Interrupt Output:	Yes
Features:	POR
Output Type:	Open Drain, Push-Pull
Current - Output Source/Sink:	20mA
Clock Frequency:	400kHz
Voltage - Supply:	1.71 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-WFQFN Exposed Pad
Supplier Device Package:	16-TQFN (3x3)
Base Part Number:	MAX7321

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

MAX7321ATE+T Application Field and Working Principle

The MAX7321ATE+T is a widely used I/O Expander, which greatly extends the I/O capabilities of micro-controller systems. It offers a range of integrated features, including low-voltage operation, level shifting, and interrupt handling, making it ideal for small, low-intensity applications.

Overview

The MAX7321ATE+T is a highly integrated I/O Expander capable of managing up to 16 I/O channels. It is able to interface with logic levels from 1.2V to 3V, making it compatible with the vast majority of microcontroller systems, from low-voltage GSM protocols to high-voltage 5V systems. The MAX7321 supports industry-standard 2-wire and 3-wire serial interfaces for data transfers, including I2C, SPI, and SMBus. In addition, it provides advanced features for interfacing with interrupt-driven systems, such as auto-clearing interrupt registers, pulse time windows and automatic dynamic addressing.

Applications

The MAX7321ATE+T I/O Expander is a versatile device that can be used in a wide variety of applications. It is capable of handling up to 16 I/O pins and can be used to provide extra I/O ports and support for other devices. It can be used to drive LEDs and switches in displays, as well as providing support for sound and data representation. MAX7321 can also be used for remote communication applications, such as for interfacing with sensors or for monitoring status information.

Working Principle

The MAX7321ATE+T I/O Expander works by controlling the flow of logic levels across two data lines. These lines can be used to incrementally control the output of the device, according to the instructions given by the microcontroller system. In addition, the device can be configured to work in an interrupt-driven manner, where it can detect changes in the logic levels on its pins and initiate an interrupt response accordingly.The MAX7321 can also be configured to support more advanced features, such as pulse-width modulation and priority-altering logic levels, allowing it to handle more complex logic operations. The device can also be used in conjunction with a master I/O Expander, providing multiple points of access to the same control logic without requiring a dedicated control line for each I/O pin.

Conclusion

The MAX7321ATE+T I/O Expander is a highly integrated and cost-effective device for managing up to 16 I/O channels. It offers low-voltage support, level shifting, and interrupt handling, making it an ideal solution for small, low-intensity applications. By combining industry-standard serial protocols with advanced features for pulse-width modulation, priority-setting, and auto-clearing interrupt registers, the MAX7321 provides a highly versatile and powerful solution for expanding I/O capabilities.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description