TCA9539 - 具有中断输出、复位和配置功能的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器寄存器

TCA9539是TI德州仪器公司的一款I2CIO扩展器产品，TCA9539是具有中断输出、复位和配置功能的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器寄存器，本站介绍了TCA9539的封装应用图解、特点和优点、功能等，并给出了与TCA9539相关的TI元器件型号供参考。

TCA9539 - 具有中断输出、复位和配置功能的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器寄存器 - I2CIO扩展器 - I2C - 德州仪器

产品特性

I2C to Parallel Port Expander
Low Standby-Current Consumption of 3μAMax
Open-Drain Active-Low Interrupt Output
Active-Low Reset Input
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I2C Bus
Input/Output Configuration Register
Polarity Inversion Register
Internal Power-on Reset
No Glitch on Power Up
Noise Filter on SCL/SDA Inputs
Address by Two Hardware Address Pins for Use of up to Four Devices
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100mA Per JESD78, ClassII
ESD Protection Exceeds JESD22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)

产品应用

Servers
Routers (Telecom Switching Equipment)
Personal Computers, smartphones
Industrial Automation
Automotive infotainment, Advanced Driver Assistance Systems (ADAS)
I2C GPIO Expansion

产品说明

The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 5.5 V. The device supports 100-kHz (I2C Standard mode) and 400-kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.

The features of the TCA9539 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9539 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on-reset. Also, the TCA9539 has a hardware RESET pin that can be used to reset the device to its default state.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TCA9539	TSSOP (24)	7.80 mm × 4.40 mm
	WQFN (24)	4.00 mm × 4.00 mm
	VQFN (24)	4.00 mm × 4.00 mm

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TCA9539 - 具有中断输出、复位和配置功能的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器 寄存器

TCA9539 - 具有中断输出、复位和配置功能的远程 16 位 I2C 和 SMBus 低功耗 I/O 扩展器寄存器