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型号	功能描述	生产厂家企业	LOGO
CH340	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340	USB to serial chip 文件：148.36 Kbytes Page：6 Pages	WCH 沁恒微电子	WCH
CH340_V01	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340B	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340BPT	SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 40 Volts CURRENT 350 mAmperes FEATURE * High speed. (TRR=10nSec Typ.) * Maximum total power disspation is 400mW. * Small surface mounting type. (SOD-123) APPLICATION * Ultra high speed switching	CHENMKO 力勤	CHENMKO
CH340C	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340E	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340G	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340K	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340N	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340R	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340RDWPT	SCHOTTKY BARRIER RECTIFIER VOLTAGE 40 Volts CURRENT 350 mAmpere FEATURE * High speed. (TRR=10nSec Typ.) * Suitable for high packing density. * Maximum total power disspation is 200mW. * Small surface mounting type. (SC-88/SOT-363) APPLICATION * Ultra high speed switching	CHENMKO 力勤	CHENMKO
CH340SDWPT	SCHOTTKY BARRIER RECTIFIER VOLTAGE 40 Volts CURRENT 350 mAmpere FEATURE * Small surface mounting type. (SC-74/SOT-457) * High speed. (TRR=10nSec Typ.) * Suitable for high packing density. * Maximum total power disspation is 225mW. APPLICATION * Ultra high speed switching	CHENMKO 力勤	CHENMKO
CH340T	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340X	USB Convert serial port chip Features ● Full-speed USB device interface, compatible with USB V2.0. ● Simulate standard serial port, used to upgrade original serial port peripherals, or add additional serial ports through USB. ● The serial port application under the Windows operating system on the computer side is fully com	WCH 沁恒微电子	WCH
CH340C	应用功能：收发器接口协议：USB 2.0 数据速率：2Mbps 文件：202.048 Kbytes Page：8 Pages	WCH 沁恒微电子 PDF上传者：深圳市亚泰盈科电子有限公司	WCH
CH340G	应用功能：收发器接口协议：USB 2.0 数据速率：2Mbps 文件：202.048 Kbytes Page：8 Pages	WCH 沁恒微电子 PDF上传者：深圳市亚泰盈科电子有限公司	WCH
CH340BGP	Small Signal Schottky Diodes	CHENMKO 力勤	CHENMKO
CH340BGP-A	Small Schottky Diodes	CHENMKO 力勤	CHENMKO
CH340BPT	SCHOTTKY BARRIER RECTIFIER VOLTAGE RANGE 20 - 40 Volts CURRENT 350 mAmperes	CHENMKO 力勤	CHENMKO
CH340G	USB to UART Interface 文件：2.5369 Mbytes Page：9 Pages	ETCList of Unclassifed Manufacturers 未分类制造商	ETC
CH340G	USB to UART Interface 文件：207.35 Kbytes Page：6 Pages	ETCList of Unclassifed Manufacturers 未分类制造商	ETC
CH340R	USB to serial chip 文件：148.36 Kbytes Page：6 Pages	WCH 沁恒微电子	WCH
CH340T	USB to serial chip 文件：148.36 Kbytes Page：6 Pages	WCH 沁恒微电子	WCH
LM340	THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS Three-Terminal Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed–voltage regulators for a wide variety of applications including local, on–card regulation. These regulators employ internal current limiting, thermal shutdown, and safe–area co	MOTOROLA 摩托罗拉	MOTOROLA
LM340A	THREE TERMINAL POSITIVE FIXED VOLTAGE REGULATORS Three-Terminal Positive Voltage Regulators These voltage regulators are monolithic integrated circuits designed as fixed–voltage regulators for a wide variety of applications including local, on–card regulation. These regulators employ internal current limiting, thermal shutdown, and safe–area co	MOTOROLA 摩托罗拉	MOTOROLA
MBRD340	SWITCHMODE??Power Rectifirers DPAK Surface Mount Package SWITCHMODE Power Rectifiers DPAK Surface Mount Package . . . designed for use as output rectifiers, free wheeling, protection and steering diodes in switching power supplies, inverters and other inductive switching circuits. These state–of–the–art devices have the following features: • Extremel	MOTOROLA 摩托罗拉	MOTOROLA
MJD340	SILICON POWER TRANSISTORS 0.5 AMPERE 300 VOLTS 15 WATTS High Voltage Power Transistors DPAK For Surface Mount Applications Designed for line operated audio output amplifier, switchmode power supply drivers and other switching applications. • Lead Formed for Surface Mount Applications in Plastic Sleeves (No Suffix) • Straight Lead Version in Plastic	MOTOROLA 摩托罗拉	MOTOROLA
MJE340	0.5 AMPERE POWER TRANSISTOR NPN SILICON 300 VOLTS 20 WATTS Plastic Medium Power NPN Silicon Transistor . . . useful for high–voltage general purpose applications. • Suitable for Transformerless, Line–Operated Equipment • Thermopad Construction Provides High Power Dissipation Rating for High Reliability	MOTOROLA 摩托罗拉	MOTOROLA

CH340产品属性

类型
描述
Maximum Average Rectified CurrentIO(mA)：
350
Maximum Forward Peak Surge CurrentIFSM(A)：
1.5
Maximum Reverse CurrentIR(uA)：
5
@ VR(V)：
40
@ IF(mA)：
200
Maximum Forward VoltageVF(V)：
0.6
Maximum Reverse Reconery TimeTRR(nS)：
1
Package：
SOD-123

CH340供应商更多...

更新时间：2026-8-4 19:13:00

IC供应商	芯片型号	品牌	批号	封装	库存	备注	价格
深圳市旺财半导体有限公司	CH340T	WCH/沁恒	18+	SSOP-20	4	原装正品，欢迎询价	询价
中天科工半导体（深圳）有限公司	CH340T	WCH/沁恒南京	25+	SSOP	32000	WCH/沁恒南京全新特价CH340T即刻询购立享优惠#长期有货	询价
深圳市乐创天科技有限公司	CH340G	WCH(南京沁恒)	2026	SOP16	7000		询价
深圳市清腾科技有限公司	CH340G	沁恒	26+	SOP?8	20000	原装	询价
深圳市凌旭科技有限公司	CH340N	WCH/沁恒	21+	SOP8	14600	绝对原装WCH/沁恒正品现货，12年信誉保证只做原装、一定有货！	询价
深圳市科雨电子有限公司	CH340E	ADI/亚德诺	25+	SOP	10000	就找我吧!--邀您体验愉快问购元件!	询价
深圳市亚泰盈科电子有限公司	CH340N	WCH(南京沁恒)	24+	SOP-8	10000		询价
深圳市卓越微芯电子有限公司	CH340T	WCH	25+	SSOP20	6600	百分百原装正品真实公司现货库存本公司只做原装可	询价
深圳市科翼源电子有限公司	CH340G	WCH/沁恒	23+	SOIC16	40000	原装现货	询价
深圳市晨豪科技有限公司	CH340G	WCH	22+	SOP-16	89360	当天发货全新原装假一赔十产品实拍 0755-85274662 1852346906	询价

CH340芯片相关品牌

CH340规格书下载地址

CH340参数引脚图相关

CH340数据表相关新闻

CH334P 是沁恒微电子一款极具性价比的 USB 转串口芯片，在低成本嵌入式场景中应用广泛。其核心定位是通过 USB 接口实现与单路 UART 串口设备的双向数据转换，兼顾易用性与稳定性。
CH334P 沁恒微 80000PCS
2025-10-24
CH340C
属性参数值商品目录 USB芯片驱动器/接收器数 - 协议类别 USB 2.0 类型 Transceiver 电源电压 3.3V， 5V 数据速率 2Mbps属性参数值商品目录 USB芯片驱动器/接收器数 - 协议类别 USB 2.0 类型 Transceiver 电源电压 3.3V， 5V 数据速率 2Mbps
2020-12-11
CH340G
属性参数值商品目录 USB芯片驱动器/接收器数 - 协议类别 USB 2.0 类型 Transceiver 电源电压 3.3V， 5V 数据速率 2Mbps属性参数值商品目录 USB芯片驱动器/接收器数 - 协议类别 USB 2.0 类型 Transceiver 电源电压 3.3V， 5V 数据速率 2Mbps
2020-12-11
CH340EUSB总线转接芯片，用于USB转串口，打印口，IrDA红外等，内置晶振，平台驱动齐全，芯片信息可自定义
CH340E USB总线转接芯片，用于USB转串口，打印口，IrDA红外等，内置晶振，平台驱动齐全，芯片信息可自定义
2019-12-4
CH236
CH236，全新原装当天发货或门市自取0755-82732291.
2019-9-2
CH315
CH315，全新原装当天发货或门市自取0755-82732291.
2019-9-1

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找IC，尽在114IC

CH340产品属性

CH340供应商更多...

CH340芯片相关品牌

CH340规格书下载地址

CH340参数引脚图相关

CH340数据表相关新闻

CH334P 是沁恒微电子一款极具性价比的 USB 转串口芯片，在低成本嵌入式场景中应用广泛。其核心定位是通过 USB 接口实现与单路 UART 串口设备的双向数据转换，兼顾易用性与稳定性。

CH340C

CH340G

CH340EUSB总线转接芯片，用于USB转串口，打印口，IrDA红外等，内置晶振，平台驱动齐全，芯片信息可自定义

CH236

CH315

DdatasheetPDF页码索引