【应用】纳芯微低功耗I²C总线扩展器NCA9555用于显示屏驱动板卡,具备16位I/O口
随着人工智能领域的不断发展,显示屏驱动板卡在功能上也不断进行着更新迭代。在主控芯片控制的传感器、继电器、状态指示灯等器件资源升级的基础上,会出现主芯片I/O资源不足的情况。笔者在服务客户设计一款高端显示屏驱动板卡时,推荐了纳芯微I²C扩展芯片NCA9555,是一款带中断的16位I²C总线I/O端口,可通过I²C总线扩展出16位通用GPIO接口,能有效弥补I/O口资源不足的情况。
显示屏驱动板卡简要框图:
图1、功能框图
纳芯微NCA9555是一种24引脚CMOS器件,为I2C总线应用提供16位通用并行输入/输出(GPIO)扩展。具有高电流驱动能力的锁存输出,可直接驱动LED,如图1所示可用于点亮状态指示灯。以下是典型应用电路图和封装图:
图2、NCA9555典型应用电路
图3、NCA9555封装图
纳芯微电子NCA9555 I/O扩展芯片应用在显示屏驱动板卡具有以下优势:
1、宽工作电压:支持工作电源电压范围为2.3V至5.5V,且每通道允许5V容限使用,符合显示屏板卡设计需求;
2、高电流驱动:具有高电流驱动能力的锁存输出,可直接驱动LED,用于点亮多路状态指示灯。此外0.25μA的待机功耗可满足低功耗设计要求;
3、可扩展16个I/O口: I²C总线扩展器结构简单,扩展性强,可以通过I²C总线控制2个8通道的I/O,通过写入I/O配置位来启用I/O作为输入或输出;
4、工作环境温度范围为-40℃至+85℃,小体积TSSOP-24封装。
综上,纳芯微电子NCA9555 I/O扩展芯片具有16位I/O口、低功耗、小封装等优势,适用于显示屏驱动板卡设计。
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纳芯微电子(NOVOSENSE)信号感知芯片/隔离与接口芯片/驱动与采样芯片选型指南(英文)
描述- NOVOSENSE Microelectronics (NOVOSENSE, SSE Stock Code 688052) is a highly robust & reliable analog and mixed signal Chip company. Since its establishment in 2013, the company has been focusing on sensor, signal chain, and power management, providing comprehensive semiconductor products and solutions, which are widely used in automotive, industrial, information communication and consumer electronic
型号- NSI6602NA-DLAR,NSL21924-Q1,NCA1051,NSI6602VC-Q1SWR,NSI6622NB-Q1SWKR,NCA1051N-Q1SPR,NSM2017,NSI6602NC-Q1SWR,NSM2019,NSM211X,NSI6602A-Q1SWKR,NSM2013,NIRS485,NSIP83086,NSI6622VB-Q1SPOR,NSM2015,NSM2016,NSC9260X,NSHT30-CLAR,NSD1624-Q1SPR,NSM2011,NSM2012,NSI8231,NSI8230,NSD2621C-DQAGR,NSR33XXX,NSC9262,NSC9260,NSI6801LC-DDBR,NSI6602VD-Q1SWKR,NSC9264,NSP1830,NSG65N15K-DQAFR,NST112X,NCA1042C-Q1DNR,NCA1042,NCA1042A-Q1DNHR,NSI8220NX,NSI6622A-DSWKR,NSI6801TB-DDBR,NSD1624-DSPKR,NSP1833,NST7719,NSP1831,NSP1832,NSM1052,NSM1053,NSI8222,NSA2860X,NSI8221,NSI8220,NSE5701 SERIES,NSI6642C-DSPNR,NSM1051,NSI822XC,NSIP8921W1-DSWR,NSI6602MNF-Q1SWTR,NSD11416-Q1STBR,NSI6602VB-Q1SPNR,NCA3491,NSI6642A-DLAR,NSI6602NB-Q1SWKR,NSA2860_TSSOP,NSD1026V,NSI8221CX-DSWR,NSE34050,NCA1043B-Q1DNKR,NCA1044N-Q1SPR,NSIP8944W1-DSWR,NSL21912-Q1,NSM201X,NSI6622A-Q1SPNR,NCA1051N-Q1,NSM2031,NSI6602MNB-Q1SWTR,NSD7310A-DHSPR,NSM2032,NCA1145-Q1SPKR,NSM2033,NSI8210,NSM2034,NST112-DSTR,NSI6601MB-DSPR,NSD1015T,NSI8266CX-DSWR,NSI6602VD-DSWKR,NSI8222CX-DSPR,NSM105X SERIES,NSD1015MT-DSPR,NSC2860X_DQNR,NCA1021S-Q1SPR,NSI8262CX-DSWR,NSPGS2,NCA34XX,NCA3485,NCA1051C,NSI68011C-DSWAR,NSI8221NX,NSI6602NC-DLAMR,NST1002,NSPGS5,NSM211X SERIES,NSI6602VC-DLAMR,NST1001,NCA1042C-Q1,NSI6602A-DLAR,NSI6602ND-DSWKR,NSM105X,NSD16241-Q1SPR,NSI1303M0X,NSM3011,NSPAS3M SERIES,NSI8240CX-DSPR,NSD7312-Q1,NSM3013,NSM3012,NSA2860_SSOP16,NSA2862X,NSI6642B-DSWKR,NSM1071,NSM1072,NSI823XC,NSI6642A-DLAMR,NSD5604N,NSI319X,NSI6642D-DLAR,NSI8100NC,NSI6602B-Q1SWR,NSI6622ND-DSPNR,NSI6601B-DSPR,NSA2860X-QQNR,NSI8210NX,NSI6642D-DSWKR,NSI6602MF-DSWTR,NSD5604E,NIRSP31,NSI6602MNB-DSWTR,NST175,NST1075,NSI6602A-DSPNR,NCA9617A SERIES,NSI68010B-Q1SWAR,NSI1312D,NSI6642B-DSWR,NSI8222NX,NSI6601C-DSPR,NSI6622NB-DLAR,NSIP8841W1-DSWR,NSP1631,NSI8221CX-DSWVR,NSP1632,NSP1630,NSD56008-Q1HTSPR,NSI6622C-DLAR,NSM301X,NSM107X,NSI824XC,NSI6602VA-Q1SPNR,NSI6602ND-DLAR,NSI6801C-DSWFR,NSD3604-Q1,NCA3176,NSI6801MB-DSWVR,NSD3608-Q1QAJR,NSI1312S,NSI6622VB-Q1SWR,NSI6622B-Q1SPNR,NSD5604N-DHTSPR,NSD1624-DLAJR,NSI68011C-Q1SWAR,NSI6602VA-DLAMR,NSI6602NA-DLAMR,NSI6602NB-DSWR,NSD5604E-DHTSTR,NSR35XXX,NSI6622NB-Q1SWR,NSD5604N-Q1HTSPR,NSD1224X,NSI6602C-Q1SPNR,NSI8100W,NSI6622NA-DSPNR,NSIP8844W1-DSWR,NSI6622NB-DSWKR,NSE5702,NSE5701,NSI8100N,NSP183X,NCA1044-Q1DNR,NSI6622NC-DLAR,NCA1021S-Q1DNR,NSI6622VB-Q1SPNR,NCA1044N-Q1DNR,NSD16241-DSPKR,NSI3190,NSI6602VD-DSWR,NPC060N120A-QTOOT,NSI6622NA-Q1SWKR,NSE34050Q,NSD1224LA-DAFR,NSI8241SX,NSI6622NA-Q1SWR,NSI6622NC-Q1SPNR,NSI8231CX-DSWR,NSI1052-DSWR,NSPGL1 SERIES,NSI6622VA-Q1SPOR,NSA2860X_QQNR,NSI6801B-DSWFR,NSI6602B-Q1SPNR,NSI6601WC-DSWVR,NSI6651ASC-Q1SWR,NSC6272,NSI8263CX-DSWR,NSD8310-Q1HTSXR,NSC6273,NSREF31XX,NSI6622ND-DSWR,NSI6622NC-DSPNR,NSI6602NB-DLAR,NSI6602NB-DSPNR,NSA5312,NSI6622VC-Q1SWKR,NSPGL1,NSI6602A-Q1SWR,NSI6622NC-Q1SPOR,NSPGS2 SERIES,NSI6642C-DLAMR,NSR7808,NSI8220WX,NSI8266WX,NSD56008-Q1,NSD5604NE,NSI6622VA-Q1SPNR,NSI6602VB-DSWKR,NSL2161X-Q1,NCA1042BN-Q1SPR,NCA1057-Q1SPR,NCA1043B-Q1,NCA9511,NSI6602A-DSWR,NSC6280,NSI6602NA-Q1SWKR,NSD8308-Q1,NSI6602NC-DSWR,NSI6801TC-DDBR,NSI8242SX,NSI68515AC-DSWR,NSI6602B-DSWKR,NSI6602VD-DLAMR,NPCO60N120A-QTOIT,NSI8220CX-DSWVR,NSI6622NB-DSWR,NST235,NST117,NSI6602VC-DSWKR,NSI6602VC-Q1SWKR,NSI6602MB-DSWDR,NST118,NCA954X SERIES,NSD16242-Q1SPR,NCA9306 SERIES,NCA1044-Q1SPR,NSI6651,NSI6642B-DLAMR,NSI6602C-DSWKR,NSI8240NX,NSE34050 SERIES,NCA1057N-Q1DNR,NSP163X,NSI6602NC-DSPNR,NCA1042BN-Q1,NSI8221WX,NSI66X2,NSI6631ASC-Q1SWR,NSI6602MNC-DSWTR,NCA1042B-Q1DNR,NSI6642,NSI6601C-DSWVR,NIRS2X,NSI6601MB-DSWR,NSI8266SX,NSI6602NB-Q1SPOR,NCA34XX SERIES,NSI6602NC-Q1SPOR,NSD7310A,NSD8306-Q1,NSI6622ND-DLAMR,NSG65N15K,NSD12409-Q1SPR,NSE4250 SERIES,NCA1042CN-DSPR,NSI6602VA-DSWKR,NSI6642D-DLAMR,NCA1051N,NSI6642A-DSWKR,NIRS20N1-DSPR,NIRS21N1-DSPR,NSI6622NA-DLAR,NSC2860X-DQNR,NSI1042-DSWVR,NCA1042C-Q1SPR,NSI6602C-DSWR,NCA1057-Q1DNR,NSI8221CX-DSPR,NPD010N120A-DTOGT,NSI6602VB-Q1SWR,NSI8210CX-DSPR,NSD1026V-QISPR,NSD12416‒Q1,NSI1050-DDBR,NSI8241NX,NSI6602NC-Q1SPNR,NCA1042BN-Q1DNR,NSR10AXX SERIES,NST461,NSD2621X,NCA1042A-Q1,NSI8222WX,NST103,NSI1303D0X,NSI1303E2X,NSI6622A-Q1SWKR,NSI6602VC-DLAR,NSR31 SERIES,NSD16242-DSPR,NCA9555,NSI1052,NSC6360,NSC6362,NSI6622NB-DLAMR,NSI6651ALC-DSWR,NSC6364,NSI6602NA-DSPNR,NSI6622A-DLAR,NSI6622C-Q1SPNR,NCA1042C,NSI8220CX-DSWR,NSI6622C-DSPNR,NSA3166,NCA1042A-Q1SPR,NSIP8941W0-DSWR,NSI6642B-DLAR,NCA1042B-Q1,NSPGD1M,NSPAS3 SERIES,NSD1624-DSPR,NSI6602VA-Q1SWR,NSD1026V-Q1HMSR,NSI8242CX-DSWR,NSI6602MNC-Q1SWTR,NSL2163X-Q1,NST20,NIRS31,NSREF30XX,NCA9545,NSI6622NA-DLAMR,NSI1042,NSI6611,NCA9546,NSI6622B-DSPNR,NCA9306,NCA9548,NSD12416-Q1SPR,NSI6602MC-Q1SWTR,NSI8242NX,NSD8381-Q1QAIR,NSD8308-Q1HTSXR,NCA9617A,NST1001HA,NSI6602VA-DSWR,NSI1303D2X,NSI1050,NSI6601B-DSWVR,NSD7310-DHSPR,NSI6601,NSD731X-Q1,NCA1057N-Q1SPR,NSR7808GXX,NSD7312-Q1HSPR,NSI6602VB-DLAMR,NSI6602MNF-DSWTR,NSD1026V-DHMSR,NSA3300,NSI6602C-Q1SWKR,NSC2860X,NSD11416‒Q1,NSI6622NB-Q1SPNR,NCA1051N-DSPR,NSI6611ASC-DSWR,NSI22C11,NSI8230CX-DSWR,NSI6801B-DSPR,NSI6622A-DSPNR,NSD12409‒Q1,NSD5604NE-DHTSTR,NSPDSX SERI
【选型】GPIO扩展芯片NCA9555可兼容TCA9555PWR,满足工业级的I/O扩展器应用需求
很多工程师采用TCA9555PWR通过I2C总线进行扩展,但研发过程中部分用户提出要求,希望推荐其他型号作为备选对比,综合评估。本文推荐纳芯微电子GPIO扩展芯片NCA9555,封装兼容,参数对齐,满足使用要求。
器件选型 发布时间 : 2022-02-28
NOVOSENSE Industrial Control Solution
型号- NSI6801,NSI1311,NSI1312,NSI824X,NSAD114X,NCA8244,NCA8245,NSM2017,NSM211X,NST175,NSM2019,NSM2013,NSI22C11,NSI68515,NSM2015,NSM2011,NSD5604,NSM2012,NSA2862X,NSR33XXX,NST86,NSOPA9XXX,NSI1300,NSI6801M,NSREF31XX,NSI1306,NST112X,NSI1303,NCA1044,NSI1305,NSR7808,NSE11409,NSI8266,NSI8100,NSR28C4X,NIRS21,NSI8260,NSOPA8XXX,NCA9555,NSI1200C,NSD1026V,NCA1042B,NSAD124X,NSD12416,NSI8608,NCA3176,NSCSA24X,NSI83086,NSM201X,NSI83085,NSM2113,NSM2311,NST235,NSR31XXX,NSA2860X,NST60,NSD1624,NST20,NIRS31,NSR104XX,NSR35XXX,NSD1224,NSREF30XX,NSCSA199,NSI1200,NSI1042,NSI1400,NSCSA21X,NSD11416,NSC2860X,NSI22C12,NCA1051A,NCA3485,NST1002,NST1001,NSI82XX,NSI8200,NSI1050
【选型】国产I²C总线扩展器NCA9555可PTP替代PCA9555,参数封装完全相同
PCA9555是NXP公司的一款I2C总线扩展器,纳芯微电子NCA9555具有和PCA9555一样的功能,文章通过对比两种器件的主要功能、特性,封装等方面,分析是否可以完全进行替代使用,并在实际项目中进行了验证。
器件选型 发布时间 : 2021-09-27
Renewable Energy & Power Supply Application Solution
型号- NSI6801,NSI1311,NSI6601,NSI1312,NSIP884X,NSI824X,NCA8244,NSM2017,NIRSP31,NSM2019,NSM211X,NSIP83086,NSM2013,NSM2015,NSI68515,NSM2011,NSR33XXX,NSOPA9XXX,NSI1300,NSI6801M,NSI83008XE,NPD0X0N120A,NSI823X,NSIP21,NSREF31XX,NPS0X0N065A,NSR2240X,NCA1043,NSR7808,NSI8100,NSHT3X,NSD7312,NSD2621,NSR28C4X,NIRS21,NSIP8942,NSOPA8XXX,NCA9555,NSI1200C,NSI822X,NSIP31,NSIP894X,NSD1026V,NCA1042B,NCA3176,NSCSA24X,NSI83086,NSI83085,NSI6602V,NSM2311,NSM2113,NST235,NSR31XXX,NSIP1042,NSD1624,NPI030N065A,NST20,NSR35XXX,NSR104XX,NIRS31,NSD1224,NSREF30XX,NPC0X0N120A,NSI1042,NSI6611,NSI1400,NSCSA21X,NCA1043B,NCA1051A,NSI6601M,NCA3485,NCA1042B2,NST1002,NST1001,NSI82XX,NSI8200,NSI1050,NSI3190
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