microcontroller

CH643Q

Symbol
GND1PA15/TX2_2PA16/RX2_3PA17/CTS2_4PA18/TX3_/T2ET_5PA19/T2ET/RX2_6PA20/TX2_/T2BK7PA21/T2C1N/RTS2_8PC0/TX2_/T2C4_9PC1/T1C2_/T2C1N_10PC2/T1C3_/T2C2N_11PC3/RTS2_/T1C4_12PA22/T2C2N/C2N013PA23/T2C3N/C1N114PA0/T2C1/CTS215PA1/RTS2/T2C216PA2/TX2/T2C3/O2O117PA3/T2C4/O1O018PC4/CS_/T1BK_/T2ET_1919PC5/SCK_/T1C1N_2020PA4/CS/O2O0/RTS3_21PA5/SCK/TX4_/CTS4_22PA6/MISO/T3C1/RTS4_23PA7/MOSI/T3C2/T1C1N_24PB0/TX4/T1C2N_/O1P025PB1/T1C3N_/RX426PB2/C2O/RX1_2727PB3/TX3/C3O/T2C3_28PB4/T2C4_/T3C1_/T2BK_29GND3030VDD3131PB5/O1O1/T3C2_32VDD64PA14/SDA_/RTS1_63PA13/SCL_/RTS4_62PA12/CS_/T2C2_/T2C1N_61PA11/SDA/SCK_/RX1_60PA10/SCL/TX1_/MOSI_59PA9/MOSI_/MISO_/RX4_58PA8/MISO_/RTS4/RTS1_57PC15/CC2/T2C3_/T1ET_56PC14/CC1/T1C3_/T2C2_55PB15/T2C2_/SCK_/CTS45454PB23/T1C4_53PB2252PB21/T2C1_/CS_/RTS4_51PB2050PB14/RX3_49PB13/TX4_4848PC19/DCK/T2C1_47PB12/T1C4_/T2C2N_4646PC18/DIO/TX3_/T2C1N_45PC17/UDP/RTS1/TX4_44PC16/UDM/T1C4/TX4_43PB11/T1C3/T2C1N_/RX14242PB10/TX1/T1C24141PB9/T1C1/MCO/TX4_4040PB19/RTS3_/T2C4_3939PB18/T2C3_/CTS3_3838PB17/T2C2_/RX3_3737PB16/TX3_/T2C1_3636PB8/T1C3N/O1P13535PB7/T1C2N/RTS3_/O2P23434PB6/T1C1N/CTS3/O1N13333
Footprint
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364
3D Model
Pin Map
PinNameTypeMountShapeWidth × Height (mm)
GNDgroundSMDroundrect0.2×1.6
PA15/TX2_outputSMDroundrect0.2×1.6
PA16/RX2_ioSMDroundrect0.2×1.6
PA17/CTS2_passiveSMDroundrect0.2×1.6
PA18/TX3_/T2ET_passiveSMDroundrect0.2×1.6
PA19/T2ET/RX2_passiveSMDroundrect0.2×1.6
PA20/TX2_/T2BKpassiveSMDroundrect0.2×1.6
PA21/T2C1N/RTS2_passiveSMDroundrect0.2×1.6
PC0/TX2_/T2C4_passiveSMDroundrect0.2×1.6
PC1/T1C2_/T2C1N_passiveSMDroundrect0.2×1.6
PC2/T1C3_/T2C2N_passiveSMDroundrect0.2×1.6
PC3/RTS2_/T1C4_passiveSMDroundrect0.2×1.6
PA22/T2C2N/C2N0passiveSMDroundrect0.2×1.6
PA23/T2C3N/C1N1passiveSMDroundrect0.2×1.6
PA0/T2C1/CTS2passiveSMDroundrect0.2×1.6
PA1/RTS2/T2C2passiveSMDroundrect0.2×1.6
PA2/TX2/T2C3/O2O1passiveSMDroundrect1.6×0.2
PA3/T2C4/O1O0passiveSMDroundrect1.6×0.2
PC4/CS_/T1BK_/T2ET_19passiveSMDroundrect1.6×0.2
PC5/SCK_/T1C1N_20passiveSMDroundrect1.6×0.2
PA4/CS/O2O0/RTS3_passiveSMDroundrect1.6×0.2
PA5/SCK/TX4_/CTS4_passiveSMDroundrect1.6×0.2
PA6/MISO/T3C1/RTS4_passiveSMDroundrect1.6×0.2
PA7/MOSI/T3C2/T1C1N_passiveSMDroundrect1.6×0.2
PB0/TX4/T1C2N_/O1P0passiveSMDroundrect1.6×0.2
PB1/T1C3N_/RX4passiveSMDroundrect1.6×0.2
PB2/C2O/RX1_27passiveSMDroundrect1.6×0.2
PB3/TX3/C3O/T2C3_passiveSMDroundrect1.6×0.2
PB4/T2C4_/T3C1_/T2BK_passiveSMDroundrect1.6×0.2
GND30passiveSMDroundrect1.6×0.2
VDD31passiveSMDroundrect1.6×0.2
PB5/O1O1/T3C2_passiveSMDroundrect1.6×0.2
PB6/T1C1N/CTS3/O1N133passiveSMDroundrect0.2×1.6
PB7/T1C2N/RTS3_/O2P234passiveSMDroundrect0.2×1.6
PB8/T1C3N/O1P135passiveSMDroundrect0.2×1.6
PB16/TX3_/T2C1_36passiveSMDroundrect0.2×1.6
PB17/T2C2_/RX3_37passiveSMDroundrect0.2×1.6
PB18/T2C3_/CTS3_38passiveSMDroundrect0.2×1.6
PB19/RTS3_/T2C4_39passiveSMDroundrect0.2×1.6
PB9/T1C1/MCO/TX4_40passiveSMDroundrect0.2×1.6
PB10/TX1/T1C241passiveSMDroundrect0.2×1.6
PB11/T1C3/T2C1N_/RX142passiveSMDroundrect0.2×1.6
PC16/UDM/T1C4/TX4_passiveSMDroundrect0.2×1.6
PC17/UDP/RTS1/TX4_passiveSMDroundrect0.2×1.6
PC18/DIO/TX3_/T2C1N_passiveSMDroundrect0.2×1.6
PB12/T1C4_/T2C2N_46passiveSMDroundrect0.2×1.6
PC19/DCK/T2C1_passiveSMDroundrect0.2×1.6
PB13/TX4_48passiveSMDroundrect0.2×1.6
PB14/RX3_passiveSMDroundrect1.6×0.2
PB20passiveSMDroundrect1.6×0.2
PB21/T2C1_/CS_/RTS4_passiveSMDroundrect1.6×0.2
PB22passiveSMDroundrect1.6×0.2
54PB23/T1C4_passiveSMDroundrect1.6×0.2
PB15/T2C2_/SCK_/CTS4passiveSMDroundrect1.6×0.2
PC14/CC1/T1C3_/T2C2_passiveSMDroundrect1.6×0.2
PC15/CC2/T2C3_/T1ET_passiveSMDroundrect1.6×0.2
PA8/MISO_/RTS4/RTS1_passiveSMDroundrect1.6×0.2
PA9/MOSI_/MISO_/RX4_passiveSMDroundrect1.6×0.2
PA10/SCL/TX1_/MOSI_passiveSMDroundrect1.6×0.2
PA11/SDA/SCK_/RX1_passiveSMDroundrect1.6×0.2
PA12/CS_/T2C2_/T2C1N_passiveSMDroundrect1.6×0.2
PA13/SCL_/RTS4_passiveSMDroundrect1.6×0.2
PA14/SDA_/RTS1_passiveSMDroundrect1.6×0.2
VDDpowerSMDroundrect1.6×0.2

Key Parameters

Frequency
48MHz

Save parts to a list and design PCBs from them

View Datasheet

Details

Category
microcontroller
MPN
CH643Q
Manufacturer
WCH(Jiangsu Qin Heng)
Package
LQFP-64(7x7)
Footprint
LQFP-64_L7.0-W7.0-P0.40-LS9.2-BL
JLCPCB
C22448687
LCSC
C22448687
Lifecycle
active
Mounting
SMT
RoHS
Compliant

JLCPCB Stock & Pricing

In Stock(212 pcs)
1-9 pcs$1.1374
10-29 pcs$0.9398
30-249 pcs$0.8322
250-499 pcs$0.7101
500-999 pcs$0.6555
1000+ pcs$0.6314