具有中斷、弱上拉和配置寄存器的 16 位 2.3V 至 5.5V I2C/SMBus I/O 擴(kuò)展器

這個(gè)用于兩線雙向總線 (I2C) 的 16 位擴(kuò)展器設(shè)計(jì)用于在 2.3V 至 5.5V VCC 之間運(yùn)行。通過 I2C 接口 [串行時(shí)鐘 (SCL)，串行數(shù)據(jù) (SDA)]，它為大多數(shù)微控制器系列產(chǎn)品提供通用遠(yuǎn)程 I/O 擴(kuò)展。\n\nPCA9555 由兩個(gè) 8 位配置（輸入或輸出可選）、輸入端口、輸出端口和極性反轉(zhuǎn)（高電平有效或低電平有效運(yùn)行）寄存器組成。在加電時(shí)，I/O 被配置為輸入。系統(tǒng)主控制器可以通過寫入 I/O 配置位將 I/O 啟用為輸入或輸出。每個(gè)輸入或輸出的數(shù)據(jù)均保存在相應(yīng)的輸入或輸出寄存器中。輸入端口寄存器的極性可借助極性反轉(zhuǎn)寄存器進(jìn)行轉(zhuǎn)換。所有寄存器都可由系統(tǒng)主控器讀取。 ? 1μA 低待機(jī)電流消耗（最大值）\n? I2C 至并行端口擴(kuò)展器\n? 開漏電路低電平有效中斷輸出\n? 可耐受 5V 電壓的 I/O 端口\n? 兼容大多數(shù)微控制器\n? 400kHz 快速 I2C 總線\n? 針對(duì)多達(dá) 8 個(gè)器件使用的 3 個(gè)硬件地址引腳尋址\n? 極性反轉(zhuǎn)寄存器\n? 具有最大高電流驅(qū)動(dòng)能力的鎖存輸出，可用于直接驅(qū)動(dòng) LED\n? 鎖斷性能超過 100mA，符合 JESD 78 II 類規(guī)范\n? 靜電放電 (ESD) 保護(hù)性能超過 JESD 22 規(guī)范的要求 \n? 2000V 人體放電模型 (A114-A)\n? 200V 機(jī)器放電模型 (A115-A)\n? ;

TI

德州儀器

Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up

General description The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus applications. 恩XP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum

文件：2.45781 Mbytes 頁數(shù)：39 Pages

恩XP

Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up

General description The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus applications. 恩XP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum

文件：2.45781 Mbytes 頁數(shù)：39 Pages

恩XP

Low-voltage 16-bit I2C-bus I/O port with interrupt and weak pull-up

General description The PCA9555A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander with interrupt and weak pull-up resistors for I2C-bus/SMBus applications. 恩XP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum

文件：2.45781 Mbytes 頁數(shù)：39 Pages

恩XP

16-bit I2C-bus and SMBus I/O port with interrupt

General description The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the 恩XP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capab

文件：583.74 Kbytes 頁數(shù)：34 Pages

恩XP

16-bit I2C and SMBus I/O port with interrupt

DESCRIPTION The PCA9555 is a 24-pin CMOS device that provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and was developed to enhance the Philips family of IC I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, low

文件：185.32 Kbytes 頁數(shù)：22 Pages

PHI

PHI

16-bit I2C and SMBus I/O port with interrupt

DESCRIPTION The PCA9555 is a 24-pin CMOS device that provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and was developed to enhance the Philips family of IC I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, low

文件：185.32 Kbytes 頁數(shù)：22 Pages

PHI

PHI

16-bit I2C-bus and SMBus I/O port with interrupt

General description The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the 恩XP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capab

文件：583.74 Kbytes 頁數(shù)：34 Pages

恩XP

16-bit I2C-bus and SMBus I/O port with interrupt

General description The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the 恩XP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capab

文件：583.74 Kbytes 頁數(shù)：34 Pages

恩XP

16-bit I2C and SMBus I/O port with interrupt

DESCRIPTION The PCA9555 is a 24-pin CMOS device that provide 16 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C/SMBus applications and was developed to enhance the Philips family of IC I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, low

文件：185.32 Kbytes 頁數(shù)：22 Pages

PHI

PHI