TCA9555 - 具有中断输出和配置寄存器的 [1.655.5V 16 位 I2C 和 SMBus I/O 扩展器]

TCA9555是TI德州仪器公司的一款I2CIO扩展器产品，TCA9555是具有中断输出和配置寄存器的 [1.655.5V 16 位 I2C 和 SMBus I/O 扩展器]，本站介绍了TCA9555的封装应用图解、特点和优点、功能等，并给出了与TCA9555相关的TI元器件型号供参考。

TCA9555 - 具有中断输出和配置寄存器的 [1.655.5V 16 位 I2C 和 SMBus I/O 扩展器] - I2CIO扩展器 - I2C - 德州仪器

产品特性

Low Standby-Current Consumption of 3μAMax
I2C to Parallel Port Expander
Open-Drain Active-Low Interrupt Output
5-V Tolerant I/O Ports
Compatible With Most Microcontrollers
400-kHz Fast I2C Bus
Configurable Slave Address with 3 Address Pins
Polarity Inversion Register
Latched Outputs With High-Current Drive Capability for Directly Driving LEDs
Latch-Up Performance Exceeds 100mA Per JESD78, Class II
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
Personal Electronics
Industrial Automation Equipment
Products with GPIO-Limited Processors

产品说明

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface.

The TCA9555 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active high or active low operation) registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register.

产品器件信息

PART NUMBER	PACKAGE	BODY SIZE (NOM)
TCA9555	TSSOP (24)	7.80 mm × 4.40 mm
TCA9555	WQFN (24)	4.00 mm × 4.00 mm

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