【产品】工作电压3.3V的SPI转四串口控制芯片CH9434,支持多种睡眠模式,SPI最高速率为16MHz
CH9434是沁恒推出的一款SPI转四串口控制芯片,提供四组全双工的9线异步串口,用于单片机/嵌入式系统扩展异步串口。CH9434包含四个兼容16C550的异步串口,最高支持4Mbps波特率通讯。支持GPIO,支持半双工收发自动切换引脚TNOW。
特点
工作电压:3.3V。
支持通讯波特率设置,波特率范围1200-4000000bps。
串口每个方向独立FIFO缓存1.5K。
独立四个异步串口,兼容16C550并且有所增强。
串口支持5/6/7/8个数据位以及1/2个停止位。
串口支持奇、偶、无校验、空白0、标志1等校验方式。
支持常用的MODEM联络信号RTS、DTR、DCD、RI、DSR、CTS。
提供半双工RS485收发使能引脚。
SPI最高速率为16MHz。
支持多种睡眠方式以及电源控制,可通过SPI接口唤醒。
芯片内置时钟,可选外部晶振提供时钟。
芯片提供可配置GPIO功能。
提供QFN48_5X5无铅封装,兼容RoHS。
应用领域
MCU/DSP/嵌入式系统。
工业自动化RS-485通讯。
串口服务器、多串口卡。
与蓝牙、4G、WiFi等串口模块通讯实现无线传输。
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本文由JWM转载自沁恒,原文标题为:SPI转四串口芯片CH9434,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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某多串口处理板主要功能是CPU通过spi接口扩展4路高速串口,用来接收4个串口设备的数据,经过处理后再通过网口上传到远程服务器进行汇总处理。因为4个串口工作速率最高都要达到4Mbps,因此我们选择了沁恒公司的SPI转4串口芯片CH9434M,本文介绍SPI转4串口芯片CH9434M的设计和使用方法。
CH9434 四串口芯片
描述- CH9434是一款SPI转四串口转接芯片,具备四组全双工的9线异步串口,适用于单片机/嵌入式系统扩展异步串口。它支持高达4Mbps的波特率通信,具有独立的FIFO缓存和多种配置选项,包括GPIO功能和低功耗模式。
型号- CH9434M,CH9434,CH9434A
【应用】SPI转四串口转接芯片CH9434用在电表集中器上,满足RS485、RS232等串行通信的接口需求
在一个电表集中器项目中,因为MCU的串口数量不足,客户需要一款多路串口扩展芯片,来满足系统下行RS485、RS232等串行通信的接口需求。鉴于此需求,笔者给客户推荐了沁恒的SPI转四串口转接芯片CH9434。
【应用】沁恒SPI转四串口转接芯片CH9434A用于彩屏温控器,最高支持4Mbps波特率通讯
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CH375B REACH (SGS)测试报告 (SZXEC1900938802)
描述- 本报告为江苏沁恒股份有限公司提供的集成电路CH375B样品的SVHC(高关注物质)测试报告。测试依据欧盟REACH法规,对197种SVHC进行筛分测试,结果均未检出超过0.1%的SVHC含量。报告由SGS通标标准技术服务有限公司深圳分公司出具,测试方法包括ICP-OES、UV-VIS、GC-MS、HPLC-DAD/MS和比色法等。
型号- CH451L,CH9415,CH9413,CH9414,CH9412,CH451S,CH370,CH452A,CH372,CH374,CH376,CH375,CH378,CH9884,CH382,CH384,CH358,CH9516,CH357,CH236,CH9514,CH359,CH9515,CH9512,CH9513,CH9511,CH350,CH471,CH9882,CH352,CH231,CH351,CH472,CH354,CH233,CH353,CH232,CH356,CH235,CH355,CH234,CH9626,CH368,CH9627,CH9624,CH9625,CH9622,CH9623,CH9628,CH9629,CH360,CH242,CH241,CH365,CH244,CH364,CH243,CH367,CH246,CH366,CH245,CH457,CH578,CH3232,CH456,CH577,CH459,CH337,CH458,CH579,CH339,CH9100,CH9342,CH330,CH572,CH9344,CH450,CH571,CH9343,CH9463,CH453,CH574,CH331,CH573,CH455,CH576,CH9340,CH454,CH575,CH9328,CH9327,CH9329,CH9326,CH9565,CH9325,CH9331,CH9330,CH341,CH462,CH340,CH464,CH463,CH345,CH465,CH314,CH556,CH9317,CH555,CH316,CH558,CH315,CH557,CH9318,CH9438,CH318,CH9435,CH317,CH438,CH559,CH9436,CH9433,CH319,CH9434,CH9320,CH552,CH551,CH312,CH554,CH311,CH432,CH553,CH446,CH567,CH445,CH566,CH448,CH9426,CH447,CH452L,CH568,CH449,CH9431,CH9432,CH440,CH561,CH442,CH563,CH441,CH562,CH444,CH565,CH443,CH564,CH413,CH534,CH412,CH533,CH536,CH538,CH537,CH9936,CH9937,CH9144,CH9143,CH9145,CH530,CH411,CH532,CH9142,CH531,CH9141,CH424,CH545,CH423,CH544,CH547,CH546,CH549,CH9126,CH548,CH9375,CH9374,CH541,CH9371,CH540,CH9370,CH422,CH543,CH9373,CH421,CH542,CH9130,CH9372,CH633,CH632,CH635,CH634,CH637,CH636,CH639,CH638,CH9122,CH9121,CH9120,CH631,CH523,CH522,CH525,CH524,CH527,CH526,CH9345,CH529,CH528,CH9232,CH9110,CH9234,CH521,CH9230,CH9350,CH375B,DM7407,CH392,CH9165,CH395,CH9161,CH9397,CH9150
CH375B RoHS (SGS)测试报告 (SZXEC1900938502)
描述- 本报告为SGS深圳分公司于2019年5月11日发布的测试报告,编号为SZXEC1900938502。报告针对江苏沁恒股份有限公司提供的集成电路样品进行RoHS指令2011/65/EU附录II的修正指令(EU) 2015/863的限值要求测试。测试内容包括镉、铅、汞、六价铬、多溴联苯(PBBs)、多溴二苯醚(PBDEs)、邻苯二甲酸酯等有害物质的含量检测。所有测试样品均未检出有害物质含量超过限值,符合欧盟RoHS指令要求。
型号- CH451L,CH9415,CH9413,CH9414,CH9412,CH451S,CH370,CH452A,CH372,CH374,CH376,CH375,CH378,CH9884,CH382,CH384,CH358,CH9516,CH357,CH236,CH9514,CH359,CH9515,CH9512,CH9513,CH9511,CH350,CH471,CH9882,CH352,CH231,CH351,CH472,CH354,CH233,CH353,CH232,CH356,CH235,CH355,CH234,CH9626,CH368,CH9627,CH9624,CH9625,CH9622,CH9623,CH9628,CH9629,CH360,CH242,CH241,CH365,CH244,CH364,CH243,CH367,CH246,CH366,CH245,CH457,CH578,CH3232,CH456,CH577,CH459,CH337,CH458,CH579,CH339,CH9100,CH9342,CH330,CH572,CH9344,CH450,CH571,CH9343,CH9463,CH453,CH574,CH331,CH573,CH455,CH576,CH9340,CH454,CH575,CH9328,CH9327,CH9329,CH9326,CH9565,CH9325,CH9331,CH9330,CH341,CH462,CH340,CH464,CH463,CH345,CH465,CH314,CH556,CH9317,CH555,CH316,CH558,CH315,CH557,CH9318,CH9438,CH318,CH9435,CH317,CH438,CH559,CH9436,CH9433,CH319,CH9434,CH9320,CH552,CH551,CH312,CH554,CH311,CH432,CH553,CH446,CH567,CH445,CH566,CH448,CH9426,CH447,CH452L,CH568,CH449,CH9431,CH9432,CH440,CH561,CH442,CH563,CH441,CH562,CH444,CH565,CH443,CH564,CH413,CH534,CH412,CH533,CH536,CH538,CH537,CH9936,CH9937,CH9144,CH9143,CH9145,CH530,CH411,CH532,CH9142,CH531,CH9141,CH424,CH545,CH423,CH544,CH547,CH546,CH549,CH9126,CH548,CH9375,CH9374,CH541,CH9371,CH540,CH9370,CH422,CH543,CH9373,CH421,CH542,CH9130,CH9372,CH633,CH632,CH635,CH634,CH637,CH636,CH639,CH638,CH9122,CH9121,CH9120,CH631,CH523,CH522,CH525,CH524,CH527,CH526,CH9345,CH529,CH528,CH9232,CH9110,CH9234,CH521,CH9230,CH9350,CH375B,DM7407,CH392,CH9165,CH395,CH9161,CH9397,CH9150
CH9434四串口芯片数据手册
描述- CH9434是一款SPI转四串口转接芯片,具备四组全双工的9线异步串口,适用于单片机和嵌入式系统扩展。它支持高达4Mbps的波特率通信,具有独立的FIFO缓存和GPIO功能,同时支持低功耗模式和多种应用场景。
型号- CH9434M,CH9434
沁恒携多款全栈MCU及接口芯片亮相中国电工仪器仪表产业发展技术研讨会及展会
沁恒微电子在电力行业智能化工业应用的长期实践中,积累了丰富的量产经验和成功案例,日前,沁恒微电子携多款全栈MCU及接口芯片精彩亮相中国电工仪器仪表产业发展技术研讨会及展会。
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提供蓝牙BLE芯片协议、蓝牙模块、蓝牙成品测试认证服务;测试内容分Host主机层,Controller控制器层,Profile应用层测试。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳 提交需求>
可支持TI AM335x/AM5718 和NXP iMX6/iMX8芯片定制核心板和计算单板;支持NXP iMX6核心模组X / F / H系列、TI AM335x核心模组X / N / H系列,与兼容的底板组合定制单板计算机。
最小起订量: 1pcs 提交需求>
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