帶有中斷的I2C總線(xiàn)遠(yuǎn)程8位I/O擴(kuò)展器

PCA8574/74A通過(guò)兩路雙向I2C總線(xiàn)（串行時(shí)鐘(SCL)、串行數(shù)據(jù)(SDA)）為大多數(shù)微控制器系列提供通用遠(yuǎn)程I/O擴(kuò)展。\n器件由8位準(zhǔn)雙向端口和I2C總線(xiàn)接口組成。PCA8574/74A具有低電流消耗且包含具備25 mA高電流驅(qū)動(dòng)能力的鎖存輸出，用于直接驅(qū)動(dòng)LED。\nPCA8574/74A還具有中斷線(xiàn)路\n，可連接至微控制器的中斷邏輯。通過(guò)在此線(xiàn)路發(fā)送中斷信號(hào)，遠(yuǎn)程I/O可通知微控制器其端口上是否存在輸入數(shù)據(jù)而無(wú)需通過(guò)I2C總線(xiàn)通信。\n內(nèi)部上電復(fù)位(POR)會(huì)將I/O初始化為輸入。 400 kHz I2C總線(xiàn)接口\n2.3 V至5.5 V 操作，5.5 V耐受I/O\n8位遠(yuǎn)程I/O引腳在上電時(shí)默認(rèn)為輸入\n閉鎖輸出具有25 mA的灌電流能力，可直接驅(qū)動(dòng)LED\n總封裝灌電流能力為200 mA\n低電平有效的開(kāi)漏中斷輸出\n使用3個(gè)地址引腳的8個(gè)可編程從地址\n可讀取器件ID（制造商、器件類(lèi)型和版本）\n低待機(jī)電流（最大10 uA）\n-40 Cel至+85 Cel操作\nESD保護(hù)：按JESD22-A114超過(guò)2000 V HBM，按JESD22-A115超過(guò)200 V MM，按JESD22-C101超過(guò)1000 V CDM\n已按照J(rèn)EDEC標(biāo)準(zhǔn)JESD78完成閉鎖測(cè);

恩XP

Remote 8-bit I/O expander for I2C-bus with interrupt

文件：159.61 Kbytes 頁(yè)數(shù)：27 Pages

恩XP

Remote 8-bit I/O expander for I2C-bus

GENERAL DESCRIPTION The PCF8574 is a silicon CMOS circuit. It provides general purpose remote I/O expansion for most microcontroller families via the two-line bidirectional bus (I2C-bus). The device consists of an 8-bit quasi-bidirectional port and an I2C-bus interface. The PCF8574 has a low cur

文件：156.48 Kbytes 頁(yè)數(shù)：24 Pages

PHI

PHI

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers

GENERAL DESCRIPTION This family of amplifiers has ultralow offset, drift, and bias current. The AD8571, AD8572, and AD8574 are single, dual, and quad amplifiers, respectively, featuring rail-to-rail input and output swings. All are guaranteed to operate from 2.7 V to 5 V single supply. The A

文件：247.1 Kbytes 頁(yè)數(shù)：19 Pages

AD

亞德諾

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers

文件：544 Kbytes 頁(yè)數(shù)：24 Pages

AD

亞德諾

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers

文件：519.49 Kbytes 頁(yè)數(shù)：24 Pages

AD

亞德諾