具有中斷、弱上拉和配置寄存器的 8 位 1.65V 至 5.5V I2C/SMBus I/O 擴展器

TCA9554 是一款 16 引腳器件，可為兩線雙向 I2C 總線（或 SMBus）協(xié)議提供 8 位通用并行輸入和輸出 (I/O) 擴展。該器件的工作電源電壓范圍為 1.65V 至 5.5V。器件支持 100kHz（標(biāo)準(zhǔn)模式）和 400kHz（快速模式）兩種時鐘頻率。當(dāng)開關(guān)、傳感器、按鈕、LED、風(fēng)扇以及其他相似器件需要額外的 I/O 時，I/O 擴展器（如 TCA9554）可提供簡單解決方案。\n\nTCA9554 的 功能 包括當(dāng)輸入端口狀態(tài)發(fā)生變化時，在 INT 引腳上生成中斷。硬件可選地址引腳 A0、A1 和 A2 最多允許 8 個 TCA9554 器件位于同一 I2C 總線上。該器件 ? I2C 至并行端口擴展器\n? 開漏電路低電平有效中斷輸出\n? 1.65V 至 5.5V 的工作電源電壓范圍\n? 可耐受 5V 電壓的 I/O 端口\n? 400kHz 快速 I2C 總線\n? 3 個硬件地址引腳可在 I2C/SMBus 上支持最多 8 個器件\n? 輸入和輸出配置寄存器\n? 極性反轉(zhuǎn)寄存器\n? 內(nèi)部加電復(fù)位\n? 低待機電流消耗 \n? 所用通道在加電時被配置為輸入\n? 加電時無毛刺脈沖\n? SCL/SDA 輸入端上的噪聲濾波器\n? 具有最大高電流驅(qū)動能力的鎖存輸出，適用于直接驅(qū)動 LED\n? 鎖斷性能超過 100mA，符合 JESD 78 II 類規(guī)范;

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

絲印：TD554A；Package：SSOP(DB)；TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器

絲印：TD554A；Package：SSOP(DB)；TCA9554A Low Voltage 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Configuration Registers

1 Features 1. I2C to Parallel Port Expander . Open-Drain Active-Low Interrupt Output . Operating Power-Supply Voltage Range of 1.65 V to 5.5 V . 5-V Tolerant I/O Ports . 400-kHz Fast I2C Bus . Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus . Input and Output Config

文件：1.97573 Mbytes 頁數(shù)：48 Pages

TI

德州儀器