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Nanjing Qinheng

Nanjing Qinheng Microelectronics Co., Ltd. focuses on connectivity technology and microprocessor research and is an IC design company that designs chips based on self-developed professional interface IP and microprocessor IP. They provides USB/ Bluetooth /Ethernet interface chips, alongside connectivity/interconnectivity/wireless MCUs integrated with these interfaces.

Their company has been concentrating on the research of foundational technology. First, they delved into the research and implementation of key and common IP components, such as microprocessors and professional interface IPs. Second, they designed chips based on these IP components. They complemented these designs with protocol stack software and computer-side drivers to create professional products or solutions. Among these, the integration of microprocessors and professional interface technologies like USB resulted in a broad spectrum of product categories.

Categories:
  • MCU
  • USB ICs
  • Bluetooth LE
  • Ethernet
  • PCI/PCIE
  • MCU Peripheral
  • RISC-V MCUs
  • Cortex-M MCUs
  • RISC Assembly MCUs
  • Featured Application MCUs
  • BLE MCUs
  • Low Power MCUs
  • E8051 USB MCUs
PDFMfr.Part #PackageFrequencyFlashSRAMGPIOAdv TimerGP TimerWDOGRTCADC Unit/CHTouchkeyDACOPASPIIISIICUARTCANUSB2.0 FSUSB2.0 HSEthernetBLESDIOTRNGVDD
CH32L103C8T6LQFP4896MHz64K20K3713211/10101241H/D3.3V
CH32L103F7P6TSSOP2096MHz48K20K1613211/991141D3.3V
CH32L103F8P6TSSOP2096MHz64K20K1813211/991241H/D3.3V
CH32L103F8U6QFN2096MHz64K20K1913211/10101241H/D3.3V
CH32L103G8R6QSOP2896MHz64K20K2513211/10101241H/D3.3V
CH32L103K8U6QFN3296MHz64K20K2813211/10101141H/D3.3V
CH32V003A4M6SOP1648MHz16K2K141121/6113.3V
CH32V003F4P6TSSOP2048MHz16K2K181121/81113.3V
CH32V003F4U6QFN2048MHz16K2K181121/81113.3V
CH32V003J4M6SOP848MHz16K2K61121/6113.3V
CH32V103C6T6LQFP4880MHz32K10K3712211/101012H/D3.3V
CH32V103C8T6LQFP4880MHz64K20K3713211/101023H/D3.3V
CH32V103C8U6QFN48X780MHz64K20K3713211/101023H/D3.3V
CH32V103R8T6LQFP64M80MHz64K20K5113211/161623H/D3.3V
CH32V203C6T6LQFP48144MHz32K10K3713212/10102121D+H/D3.3V
CH32V203C8T6LQFP48144MHz64K20K3713212/10102241D+H/D3.3V
CH32V203C8U6QFN48X7144MHz64K20K3713212/10102241D+H/D3.3V
CH32V203F6P6TSSOP20144MHz32K10K1613212/991111D3.3V
CH32V203F8P6TSSOP20144MHz64K20K1713212/99212H/D3.3V
CH32V203F8U6QFN20144MHz64K20K1913212/99212D3.3V
CH32V203G6U6QFN28144MHz32K10K2413212/10102121D3.3V
CH32V203G8R6QSOP28144MHz64K20K2413212/10102121D+H/D3.3V
CH32V203K6T6LQFP32144MHz32K10K2613212/10102121D3.3V
CH32V203K8T6LQFP32144MHz64K20K2613212/10102121D3.3V
CH32V203RBT6LQFP64M144MHz128K64K5113211/16162241D+H/D10M PHY3.3V
CH32V208CBU6QFN48144MHz128K64K3714211/10102241D+H/D5.33.3V
CH32V208GBU6QFN28144MHz128K64K2114211/881121D+H/D10M5.33.3V
CH32V208RBT6LQFP64M144MHz128K64K4914211/16162241D+H/D10M5.33.3V
CH32V208WBU6QFN68144MHz128K64K5314211/16162241D+H/D10M5.33.3V
CH32V303RBT6LQFP64M144MHz128K32K5113212/161624231H/D3.3V
CH32V303RCT6LQFP64M144MHz256K64K5144212/1616243281H/D113.3V
CH32V303VCT6LQFP100144MHz256K64K8044212/1616243281H/D113.3V
CH32V305FBP6TSSOP20144MHz128K32K1744212/1111121H/D built-in PHY13.3V
CH32V305GBU6QFN28144MHz128K32K2444212/66113252H/D built-in PHY113.3V
CH32V305RBT6LQFP64M144MHz128K32K5144212/1616243252OTGH/D built-in PHY113.3V
CH32V307RCT6LQFP64M144MHz256K64K5144212/1616243282OTGH/D built-in PHY1G MAC+10M PHY113.3V
CH32V307VCT6LQFP100144MHz256K64K8044212/1616243282OTGH/D built-in PHY1G MAC+10M PHY113.3V
CH32V307WCU6QFN68144MHz256K64K5444212/1616243282OTGH/D built-in PHY1G MAC+10M PHY113.3V
CH32X033F8P6TSSOP2048MHz62K20K182121/1010214D3.3V
CH32X034F8P6TSSOP2048MHz62K20K182121/1010214D3.3V
CH32X034F8U6QFN2048MHz62K20K192121/99214D3.3V
CH32X035C8T6LQFP4848MHz62K20K462121/1010214H/D3.3V
CH32X035F7P6TSSOP2048MHz48K20K182121/1111113D3.3V
CH32X035F8U6QFN2048MHz62K20K192121/1010213D3.3V
CH32X035G8R6QSOP2848MHz62K20K262121/1111214H/D3.3V
CH32X035G8U6QFN2848MHz62K20K272121/1010214H/D3.3V
CH32X035R8T6LQFP64M48MHz62K20K602121/1414214H/D3.3V
PDFMfr.Part #PackageFrequencyFlashSRAMGPIOAdv TimerGP TimerWDOGRTCADC Unit/CHTouchkeyDACOPASPIIISIICUARTCANUSB2.0 FSUSB2.0 HSEthernetBLESDIOTRNGVDD
CH32F103C6T6LQFP4872MHz32K10K3712211/101011121D+H/D3.3V
CH32F103C8T6LQFP4872MHz64K20K3713211/101012231D+H/D3.3V
CH32F103C8U6QFN48X772MHz64K20K3713211/101012231D+H/D3.3V
CH32F103R8T6LQFP64M72MHz64K20K5113211/161612231D+H/D3.3V
CH32F203C6T6LQFP48144MHz32K10K3712212/101021121D+H/D3.3V
CH32F203C8T6LQFP48144MHz64K20K3713212/101022241D+H/D3.3V
CH32F203C8U6QFN48X7144MHz64K20K3713212/101022241D+H/D3.3V
CH32F203CBT6LQFP48144MHz128K32K3713212/1010242231D3.3V
CH32F203K8T6LQFP32144MHz64K20K2613212/101021121D3.3V
CH32F203RBT6LQFP64M144MHz128K32K5113212/1616242231D3.3V
CH32F203RCT6LQFP64M144MHz256K64K5144212/16162432281D113.3V
CH32F203VCT6LQFP100144MHz256K64K8044212/16162432281D113.3V
CH32F205RBT6LQFP64M144MHz128K32K5144212/16162432252OTGH/D builtin PHY113.3V
CH32F207VCT6LQFP100144MHz256K64K8044212/16162432282OTGH/D builtin PHY1G MAC+10M PHY113.3V
CH32F208RBT6LQFP64M144MHz128K64K4914211/161622241D+H/D10M5.33.3V
CH32F208WBU6QFN68144MHz128K64K5314211/161622241D+H/D10M5.33.3V
PDFMfr.Part #PackageCodeROMDataRAMFrequencyTimerPWMUARTI/OOPAADCDACISINKVDD
-CH521SOT236OTP-1K*16806MHz21149bit3.3V(3V~12V)
-CH522ESSOP10/QFN16OTP-1K5*16806MHz217+210bit9bit3.3V(3V~12V)
-CH525SSOP10/SOT236OTP-1K75*16966MHz216+280x10bit6bit*38bit3.3V(3V~12V)
-CH527ESSOP10OTP-2K*161286MHz2116+26bit*210bit3.3V(3V~20V)
-CH531SOP16/SOP8/SSOP10OTP-1K*1619212MHz211113.3V
-CH532SOP28/SOP16/QFN28iFlash-2K*1625612MHz211253.3V
PDFMfr.Part #PackageFrequencyFlashRAMDataFlashUSB2.0 HSEthernetSATASERDESHSPIDVPSDIOEncryptUARTSPITimerCAPPWMADCI/OVDD
CH32F205RBT6LQFP64M144MHz128KH/D builtin PHY1533.3V
CH32F207VCT6LQFP100144MHz256KH/D builtin PHY1G MAC+10M PHY1833.3V
CH32V305FBP6TSSOP20144MHz128KH/D built-in PHY213.3V
CH32V305GBU6QFN28144MHz128KH/D built-in PHY1533.3V
CH32V305RBT6LQFP64M144MHz128KH/D built-in PHY1533.3V
CH32V307RCT6LQFP64M144MHz256KH/D built-in PHY1G MAC+10M PHY1833.3V
CH32V307VCT6LQFP100144MHz256KH/D built-in PHY1G MAC+10M PHY1833.3V
CH32V307WCU6QFN68144MHz256KH/D built-in PHY1G MAC+10M PHY1833.3V
-CH561LQFP64M130MHz64K28K100Mb224*28b441*10b273.3V
-CH563LQFP128/LQFP64M130MHz224K28K100Mb224*28b443*10b743.3V
CH567LQFP48120MHz192K32K4*UHSAES/SM4423*26b37303.3V
CH568LQFP48120MHz192K32K3Gb4*UHSAES/SM4423*26b37263.3V
CH569QFN68/QFN40120MHz448K32K1000Mb1.25Gb3.8Gb96MHz1AES/SM4423*26b34493.3V
CH643QSOP28/LQFP48LQFP64/QFN8048MHz62K413*16b101014*12b603.3V
-CH645QFN68/QFN32125MHz224K100Mb1222*16b88403.3V
PDFMfr.Part #PackageFrequencyCoreFlashSRAMDataFlashBLEUSBEthernetTouchkeyADCLEDCLCDTimerPWMUARTSPIIICGPIORTCWDOGVDD
CH32F208RBT6LQFP64M144MHz128K64K5.310M1642249123.3V
CH32F208WBU6QFN68144MHz128K64K5.310M1642253123.3V
CH32V208CBU6QFN48144MHz128K64K5.3104237123.3V
CH32V208GBU6QFN28144MHz128K64K5.310M82121123.3V
CH32V208RBT6LQFP64M144MHz128K64K5.310M164249123.3V
CH32V208WBU6QFN68144MHz128K64K5.310M164253123.3V
CH571QFN28/QFN2020MHzRISC-V192K18K32K4.21*D6*12b4*26b42120YESYES3.3V
CH573QFN32/QFN2820MHzRISC-V448K18K32K4.21*H/1*D1010*12b4*26b124122YESYES3.3V
CH577QFN2840MHzCortex-M0128K16K2K4.23*26b32120YESYES3.3V
CH578QFN48/QFN2840MHzCortex-M0160K32K2K4.21*H/1*D10M66*12b2001/2/424*43*26b112140YESYES3.3V
CH579QFN48/QFN2840MHzCortex-M0250K32K2K4.21*H/1*D10M1414*12b2001/2/424*44*26b124240YESYES3.3V
CH581QFN2820MHzRISC-V192K32K32K5.31*D6*12b4*26b102120YESYES3.3V
CH582QFN48/QFN2820MHzRISC-V448K32K32K5.32*H/2*D1414*12b4*26b124140YESYES3.3V
CH583QFN4820MHzRISC-V448K32K32K5.32*H/2*D1414*12b4*26b124240YESYES3.3V
CH591QFN28/QFN20/TSSOP1620MHzRISC-V192K26K32K5.41*D6*12b16*44*26b102120YESYES3.3V
CH592QFN32/QFN2820MHzRISC-V448K26K32K5.41*H/1*D1212*12b20*44*26b124124YESYES3.3V
PDFMfr.Part #PackageFrequencyFlashSRAMGPIOAdv TimerGP TimerWDOGRTCADC Unit/CHTouchkeyOPApa_cmpSPIIISIICUARTCANUSBUSB2.0 FSVDD
CH32F203C8T6LQFP48144MHz64K20K3713212/101022241D+H/D3.3V
CH32L103C8T6LQFP4896MHz64K20K3713211/10101241H/D3.3V
CH32L103F7P6TSSOP2096MHz48K20K1613211/991141D3.3V
CH32L103F8P6TSSOP2096MHz64K20K1813211/991241H/D3.3V
CH32L103F8U6QFN2096MHz64K20K1913211/10101241H/D3.3V
CH32L103G8R6QSOP2896MHz64K20K2513211/10101241H/D3.3V
CH32L103K8U6QFN3296MHz64K20K2813211/10101141H/D3.3V
CH32V203C8T6LQFP48144MHz64K20K3713212/10102241D+H/D3.3V
PDFMfr.Part #PackageFrequencyFlashRAMDataFlashUSBTouchkeyADCLEDCRGB LEDTimerCAPPWMUARTSPIIICI/OBuilt-in OSCWDOGVDD
CH541TSSOP20/SOP1624MHz16K256+2561*D1112*12b3*16b2411117YESYES3.3V
CH543QFN2024MHz16K256+2561*H/1*D1112*12b3*16b2411117YESYES3.3V
CH545LQFP6432MHz63K8K+2561K4*H/17*D1414*12b8*163*16b2622558YESYES3.3V
CH546LQFP48/SOP1632MHz35K1K+2561K1*D8*12b3*16b121144YESYES3.3V
CH547LQFP48/QFN28/SOP1632MHz63K1K+2561K1*D12*12b3*16b144144YESYES3.3V
CH548LQFP48/SOP16/SOP832MHz35K2K+2561K1*H/1*D16*12b3*16b382144YESYES3.3V
CH549LQFP48/QFN28/SOP1632MHz63K2K+2561K1*H/1*D16*12b3*16b384144YESYES3.3V
CH551SOP1624MHz10K512+2561281*D53*16b221113YESYES3.3V
CH552TSSOP20/SOP16/MSOP10/QFN1624MHz16K1K+2561281*D64*8b3*16b222117YESYES3.3V
CH554TSSOP20/SOP16/MSOP10/QFN1624MHz16K1K+2561281*H/1*D64*8b3*16b222117YESYES3.3V
CH555LQFP6432MHz63K8K+2561K1*D1414*12b8*163*16b222145YESYES3.3V
CH557LQFP48/LQFP6432MHz63K8K+2561K4*H/1*D1414*12b8*163*16b2622258YESYES3.3V
CH558LQFP48/SSOP2056MHz35K4K+2565K1*D8*11b2001/2/44*16b312145YESYES3.3V
CH559LQFP48/SSOP2056MHz63K6K+2561K2*H/1*D8*11b2001/2/44*16b332245YESYES3.3V
  • USB to UART
  • USB PD
  • USB Keyboard and Mouse
  • USB to JTAG&SPI&I2C
  • USB Controllers
  • USB Extenders
  • USB HUB
PDFMfr.Part #PackageUSBDriver TypeChannelsMax Baud RateIO LevelsHardware Flow ControlAuto RS485USB ConfigurationClockOperating Temperature
CH340ESSOP102.0 Full-speed deviceVCP12Mbps5VCH340E/T/BCH340B built-inbuilt-in-40~+85℃
CH341QFN282.0 Full-speed deviceVCP12Mbps5VYESYESexternalbuilt-in-40~+85℃
CH342ESSOP102.0 Full-speed deviceVCP23Mbps5VYESCH342Fbuilt-inbuilt-in-40~+85℃
CH343QFN242.0 Full-speed deviceVCP16Mbps5VYESCH343P/GCH343P built-inbuilt-in-40~+85℃
CH348LQFP48480Mbps High-speed deviceVCP86Mbps3.3VYESYESbuilt-inexternal-40~+85℃
CH9101QFN162.0 Full-speed deviceVCP14Mbps5VYESYESbuilt-inbuilt-in-40~+85℃
CH9102QFN242.0 Full-speed deviceVCP14Mbps5VYESYESCH9102F built-inbuilt-in-40~+85℃
CH9326SOP162.0 Full-speed deviceHID1115200bps5Vbuilt-inbuilt-in-40~+85℃
CH9340ESSOP102.0 Full-speed deviceCDC11Mbps5VCH9340Ccustomizationbuilt-in-20~+85℃
CH9344LQFP48480Mbps High-speed deviceVCP412Mbps3.3VYESYEScustomizationexternal-40~+85℃

Note:

① Driver Type: CDC/HID is a system class driver. VCP is a driver for COM port provided by the manufacturer, which is recommended to be selected as it provides multiple functions and features high efficiency.

② USB Configuration：The VID, PID and product description string of a device can be set through a dedicated configuration tool.

③ CH347 implements 480Mbps High-speed USB to JTAG, USB to SWD, USB to High-speed SPI, USB to I2C, USB to High-speed UART, etc. It can be used for CPU debugger, FPGA downloader, programmer, etc.

USB to serial port CH910X series: CH9101U, CH9101H, CH9101R, CH9101Y, CH9101N, CH9102F, CH9102X, CH9103M, CH9104L, etc. These pin-compatible devices are to meet the localized replacement needs.

PDFMfr.Part #PackageUSBOperating Voltage
CH224ESSOP10PD2.0
-CH225ESSOP10PD protocol
-CH226ESSOP10PD protocol
-CH231SOT23-6LPD2.03.3V-12.5V
-CH234ESSOP10PD2.05V-12V
-CH235ESSOP10PD2.03.3V-12.5V
CH236TSSOP16PD2.05V-20V
CH237TSSOP16PD2.0
CH246TSSOP16PD2.0
CH252DFN2*2-6LType-C 2.1 standard
PDFMfr.Part #PackageUSBClockOperating Temperature
CH9328SOP162.0 Full-speed deviceInternal-40~+85℃
CH9329SOP162.0 Full-speed deviceInternal-40~+85℃
CH9350LQFP482.0 full-speed Host * 2-40~+85℃
-CH9374BLQFP642.0 full-speed Host*4
PDFMfr.Part #PackageUSBClockOperating Temperature
CH331SSOP202.0 Full-speed deviceexternal-30~+80℃
CH341QFN282.0 Full-speed devicebuilt-in-40~+85℃
CH345SSOP202.0 Full-speed deviceexternal-40~+85℃
CH347TSSOP20480Mbps High-speed deviceexternal-40~+85℃
-CH9343SOP162.0 Full-speed hostexternal-40~+85℃

Note:

①：CH347, CH340 and CH341 can also implement USB to UART, refer to "USB To UART" catalog;

PDFMfr.Part #PackageUSBHostDeviceOperating Temperature
CH331SSOP202.0 Full-speed device-30~+80℃
CH341QFN282.0 Full-speed device-40~+85℃
CH345SSOP202.0 Full-speed device-40~+85℃
CH347TSSOP20480Mbps High-speed device-40~+85℃
-CH9343SOP162.0 Full-speed host-40~+85℃

Note:

CH375 and CH372 offer crystal-less versions.

For detailed chip functionality, please refer to the corresponding data sheet or consult our online customer service.

These chips support various common USB interface devices, including keyboards, mice, barcode scanners, card readers, printers, USB drives, MIDI devices, fiscal control devices, USB audio interfaces, and manufacturer-specific devices, among others.

PDFMfr.Part #PackageExtension mediumExtension distance
CH315SESSOP10network cablefull-speed USB > 75m
CH317LQFP48Optical fiber> 6km
CH9350LQFP48network cable>1.2 km
PDFMfr.Part #PackageTT ModeOver-current DetectionPower ControlLED IndicatorSupply ModeOperating Temperature
CH334FQSOP28MTTGANG ModeGANG Mode45055YES-40~+85℃
CH334GSOP16STT-40~+85℃
CH334HLQFP48MTTIndividual ModeGANG Mode1YES-40~+85℃
CH334LLQFP48MTTIndividual ModeGANG Mode1YES-40~+85℃
CH334QSSOP28MTTGANG ModeGANG Mode1YES-40~+85℃
CH334RQSOP16MTT-40~+85℃
CH334SSSOP28MTTGANG ModeGANG Mode1YES-40~+85℃
CH334UQSOP28MTTGANG ModeGANG Mode45055YES-40~+85℃
CH335FQFN28_4x4MTTIndividualIndividual45055YES-40~+85℃

Note:

CH374 provides SPI/parallel control interface, supports USB Host/Device, has built-in 3-port RootHub, and supports all types of transmission and Hub operations, etc.

  • RISC-V BLE MCUs
  • Cortex-M0/M3 BLE MCUs
PDFMfr.Part #PackageFrequencyFlashSRAMDataFlashBLEUSBTouchkeyADCTimerPWMUARTSPIIICGPIORTCWDOGVDD
CH32V208CBU6QFN48144MHz128K64K5.3104237123.3V
CH32V208GBU6QFN28144MHz128K64K5.382121123.3V
CH32V208RBT6LQFP64M144MHz128K64K5.3164249123.3V
CH32V208WBU6QFN68144MHz128K64K5.3164253123.3V
CH571QFN28/QFN2020MHz192K18K32K4.21*D6*12b4*26b42120YESYES3.3V
CH573QFN32/QFN2820MHz448K18K32K4.21*H/1*D1010*12b4*26b124122YESYES3.3V
CH581QFN2820MHz192K32K32K5.31*D6*12b4*26b102120YESYES3.3V
CH582QFN48/QFN2820MHz448K32K32K5.32*H/2*D1414*12b4*26b124140YESYES3.3V
CH583QFN4820MHz448K32K32K5.32*H/2*D1414*12b4*26b124240YESYES3.3V
CH591QFN28/QFN20/TSSOP1620MHz192K26K32K5.41*D6*12b4*26b102120YESYES3.3V
-CH645QFN68/QFN32125MHz224K80K2*16b8223.3V
PDFMfr.Part #PackageFrequencyFlashSRAMDataFlashBLEUSBEthernetTouchkeyADCLEDCLCDTimerPWMUARTSPIGPIORTCWDOGVDD
CH32F208RBT6LQFP64M144MHz128K64K5.310M164249123.3V
CH32F208WBU6QFN68144MHz128K64K5.310M164253123.3V
CH577QFN2840MHz128K16K2K4.23*26b32120YESYES3.3V
CH578QFN48/QFN2840MHz160K32K2K4.21*H/1*D10M66*12b2001/2/424*43*26b112140YESYES3.3V
CH579QFN48/QFN2840MHz250K32K2K4.21*H/1*D10M1414*12b2001/2/424*44*26b124240YESYES3.3V
  • Ethernet Controllers
  • Ethernet Converters
PDFMfr.Part #PackageInterfacePHYSOCKET
CH392FQFN-28-EP(4x4)SPIBuilt-in4
CH395LLQFP-128(14x14)
CH395QLQFP-64(10x10)Parallel
PDFMfr.Part #PackageFrequencyFlashSRAMDataFlashBLEUSBEthernetTouchkeyADCLEDCLCDTimerPWMUARTSPIGPIORTCWDOGVDD
CH9120QFN-28-EP(4x4)
CH9121LQFP-64(10x10)
-CH9126LQFP64M
  • Converters
  • Controllers
PDFMfr.Part #PackageUARTPrinter PortData RateTransfer Speed
-CH352LQFP1001/21/-4Mbps2MB/S
-CH353LQFP1002/41/-4Mbps2MB/S
-CH355LQFP10044Mbps
-CH356LQFP1284/6/81/-/-4Mbps2MB/S
-CH358LQFP1284/84Mbps2MB/S
-CH359LQFP100164Mbps
CH382LQFP64218Mbps1MB/S
CH384LQFP1004/8/281/-/-8Mbps1MB/S
PDFMfr.Part #PackageInterfaceTransfer SpeedSupply Voltage
-CH364LQFP64I2C
CH365PQFP80SPI
-CH366LQFP44I2C
CH367LQFP648-bit3.3V
CH368LQFP100SPI32-bit3.3V
  • Analog Switches
  • UART Expanders
  • Display Drivers and Keyboard Scanners
  • FIFO and Dual-interface RAM
PDFMfr.Part #PackageVDDTypical Internal ResistanceTypical BandwidthSignal VoltageApplication Signal Recommendations
CH440GSOP163.3V/5V4.5Ω520MHz0~VDDUSB2.0(480Mbps)
CH440PQFN163.3V/5V4.5Ω550MHz0~VDDUSB2.0(480Mbps)
CH440RTSSOP163.3V/5V4.5Ω520MHz0~VDDUSB2.0(480Mbps)
CH442EMSOP103.3V/5V4.5Ω550MHz0~VDDUSB2.0(480Mbps)
CH443KSOT3633.3V/5V4.5Ω550MHz0~VDDUSB2.0(480Mbps)
CH444GSOP163.3V/5V4.5Ω380MHz0~VDDUSB2.0(480Mbps)
CH444PQFN163.3V/5V4.5Ω400MHz0~VDDUSB2.0(480Mbps)
CH445PQFN162.5V/3.3V4Ω500MHz0~VDDUSB2.0(480Mbps)
CH446QLQFP445V/12V50Ω50MHzVEE~VDD30Mbps
CH446XLQFP445V/12V50Ω50MHzVEE~VDD30Mbps
CH448FQFN243.3V/5V5Ω470MHz0~VDDUSB2.0(480Mbps)
CH448FQFN243.3V/5V5Ω250MHz0~VDD300Mbps
-CH449FQFN243.3V/5V5Ω500MHz0~VDDUSB2.0(480Mbps)
-CH449XQFN245V5Ω850MHz0~3.5VUSB2.0(480Mbps)
-CH481DQFN20-2.5*4.53.3V4Ω6.5GHz0~1.5VUSB3.0(5Gbps)
-CH482DQFN20-2.5*4.53.3V4Ω7GHz0~1.5VUSB3.0(5Gbps)
-CH482XQFN20-2.5*4.53.3V4Ω10GHz0~1.5VUSB3.2(10Gbps)
-CH483MQFN42-3.5*93.3V/5V4Ω7GHz0~1.5V/VDDUSB3.0(5Gbps)
-CH483XQFN42-3.5*93.3V+5V4Ω7GHz0~1.5V/VDDUSB3.0(5Gbps)
-CH484MQFN42X-3.5*93.3V4Ω4GHz0~1.5VUSB3.0/3.1(5Gbps)
-CH486FQFN283.3V4Ω1.6GHz0~VDDUSB2.0
PDFMfr.Part #PackageNumber of serial port expansionControl InterfaceMax Baud RateOperating Voltage
CH432SSOP202 Serial PortSPI/Parallel port4Mbps3.3V/5V
CH438LQFP1288 Serial PortParallel port4Mbps3.3V/5V
-CH9434QFN484 Serial PortSPI4Mbps3.3V
PDFMfr.Part #PackageDigital TubeLED/segment LCDButtonInterfaceOperating Voltage
CH422SOP164*832/-2-wire3.0V~5.3V
CH423SOP2816*8128/-2-wire2.9V~5.3V
CH450SOP206*848/-482-wire3.0V~5.5V
CH451SOP288*864/-644-wire2.8V~5.3V
CH452SOP288*864/-644-wire /2-wire2.8V~5.3V
CH453SOP2816*8128/-642-wire3.0V~5.3V
CH454SOP288*16/7*17128/-642-wire2.8V~5.3V
CH456SOP1616*8128/-642-wire3.0V~5.3V
-CH457SOP28128/-3-wire/2-wire3.0V~6.0V
CH462LQFP44-/32*44-wire3.0V~5.5V
-CH463LQFP44-/16*8352-wire3.0V~5.5V
PDFMfr.Part #PackageSupply Voltage
CH421SOP-283.3V
CH424LQFP-443.3V