CH559L

Q: Is there a KiCad symbol and footprint for the CH559L?

Yes. The symbol is EasyEDA_Cloud:CH559L and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

Q: What package is the CH559L?

LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.

Q: Where is the CH559L datasheet?

WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.

Q: Where can I order the CH559L?

JLCPCB lists it as part C150548, with 1,799 in stock; the sellers' links on this page open their listings.

Q: What can replace the CH559L?

Parts like it in the library: the STM32F103C8T6 by STMicroelectronics, the STM32G070CBT6 by STMicroelectronics, the STM32G030C8T6 by STMicroelectronics and the GD32F303CCT6 by GigaDevice. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Q: Which open-source boards use the CH559L?

9 boards in 7 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

WCH (Nanjing Qinheng Microelectronics)

10bit 3.3V~5V 45 51 Family 56MHz 63KB FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS

Extended

Datasheetwch/CH559L

Category: Microcontrollers (MCU, MPU, SOC)
Package: LQFP-48(7x7)
Pins: 48

Overview

The CH559L is a microcontroller made by WCH (Nanjing Qinheng Microelectronics) in a LQFP-48(7x7) package with 48 pins. 10bit 3.3V~5V 45 51 Family 56MHz 63KB FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:CH559L, from EasyEDA) and its footprint (Package_QFP:LQFP-48_7x7mm_P0.5mm, from KiCad's library), ready for a KiCad board. 1,799 are in stock at JLCPCB (part C150548). 9 open-source boards in 7 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:CH559LFrom EasyEDA

Footprint

Package_QFP:LQFP-48_7x7mm_P0.5mmFrom KiCad's library

From the datasheet

Supply, least: 2.85 V · VDD33, minimum operating voltage · p. 92
Supply, most: 3.6 V · VDD33, maximum operating voltage · p. 92
Supply, least: 3.6 V · VIN5, minimum with external capacitor on VDD33 · p. 92
Supply, most: 5.5 V · VIN5, maximum with external capacitor on VDD33 · p. 92
Supply, absolute maximum: 3.6 V · VDD33, absolute maximum · p. 91
Supply, absolute maximum: 5.6 V · VIN5, absolute maximum · p. 91
Works from: -40 °C · Operating temperature, minimum · p. 91
Works up to: 85 °C · Operating temperature, maximum · p. 91
Takes working: 8 mA · Total operating current, typical at Fsys=12MHz · p. 92
Takes at most: 50 mA · Total operating current, maximum · p. 92
Takes asleep: 100 µA · Total sleep current, typical · p. 92

What it is and has

Core: Enhanced E8051, compatible with MCS51 instruction set · p. 1
System clock: Up to 56MHz · p. 1
Flash memory: 64KB Flash-ROM; 100K writing cycles · p. 1
iRAM: 256 bytes · p. 1
xRAM: 6KB · p. 1
External SRAM expansion: Up to 32KB · p. 1
Timers/PWM: 4 · p. 1
UART: 2 · p. 1
SPI: 2 · p. 1
USB: Dual port Root-HUB; USB-Host and USB-Device modes · p. 1
USB speeds: Full speed 12Mbps and low speed 1.5Mbps · p. 1
ADC channels: 8 · p. 4
ADC resolution: Selectable 10 or 11 bits · p. 72
Interrupt sources: Up to 14 · p. 26
Package: LQFP-48, 7*7mm, 0.5mm lead pitch · p. 3

Around it

cap 0.1uF: between VIN5 and GND; External decoupling capacitor. · p. 3
cap 3.3uF: between VDD33 and GND; External decoupling required when supply voltage is greater than 3.6V. · p. 3

Specifications

Parameter	Conditions	As printed	Page
Operating temperature TA		min -40 · max 85 ℃	91
Storage temperature TS		min -55 · max 125 ℃	91
Internal operating supply voltage (VCC33 is connected to power, GND is connected to ground) VDD33		min -0.4 · max 3.6 V	91
External input supply voltage (VIN5 is connected to power, GND is connected to ground) VIN5		min -0.4 · max 5.6 V	91
Voltage on the input or output pins support 5V VIO5		min -0.4 · max 5.5 V	91
Voltage on the input or output pins not support 5V VIO3		min -0.4 V	92
Internal power voltage VDD33	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 2.85 · typ 3.3 · max 3.6 V	92
External input supply voltage VIN5	External capacitor connected to VDD33 pin; TA=25℃, Fsys=12MHz	min 3.6 · typ 5 · max 5.5 V	92
External input supply voltage VIN5	VDD33 pin shorted to VIN5 pin; TA=25℃, Fsys=12MHz	min 2.85 · typ 3.3 · max 3.6 V	92
Total operating current ICC	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 4 · typ 8 · max 50 mA	92
Total sleep current ISLP	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	typ 0.1 · max 0.2 mA	92
Input low voltage VIL	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min -0.4 · max 0.8 V	92
Input high voltage VIH	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 2 V	92
Output low voltage VOL	IIL = 4mA; TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	max 0.4 V	92
The input current without pull-up resistor IIN	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min -5 · typ 0 · max 5 uA	92
The input current with pull-up resistor IUP	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz; pull-up to VDD33	min 20 · typ 40 · max 80 uA	92
The input current with pull-down resistor IDN	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min -20 · typ -40 · max -80 uA	92
The input current with pull-up resistor from low to high IUPX	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz; pull-up to VDD33	min 200 · typ 300 · max 500 uA	92
Power on reset threshold Vpot	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 2.4 · typ 2.55 · max 2.7 V	92
External clock input frequency Fxt	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 4 · typ 12 · max 20 MHz	92
Internal clock frequency Fosc	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 11.82 · typ 12 · max 12.18 MHz	92
Frequency after PLL Fpll	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 24 · typ 288 · max 350 MHz	92
USB sampling clock frequency for the USB host Fusb4x	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 47.98 · typ 48 · max 48.02 MHz	92
USB sampling clock frequency for the USB device Fusb4x	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 47.04 · typ 48 · max 48.96 MHz	92
System frequency (VDD33>=3V) Fsys	VDD33>=3V; TA=25℃, VIN5=5V or 3.3V	min 1 · typ 12 · max 56 MHz	92
System frequency (VDD33<3V) Fsys	VDD33<3V; TA=25℃, VIN5=5V or 3.3V	min 1 · typ 12 · max 50 MHz	92
Power on reset delay Tpor	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 15 · typ 17 · max 20 mS	92
External input valid reset signal width Trst	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 70 · typ 100 · max 200 nS	92
Thermal reset delay Trdl	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 35 · typ 60 · max 100 uS	92
Automatically hang up time in USB host mode Tusp	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 2 · typ 3 · max 4 mS	92
Automatically hang up time in USB device mode Tusp	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 4 · typ 5 · max 6 mS	92
Time to wake up from sleep mode Twak	TA=25℃, VIN5=5V or 3.3V, VDD33=3.3V, Fsys=12MHz	min 1 · typ 40 · max 100 uS	92

Pins, by the datasheet

41 VIN5: 5V input of internal 5V-to-3.3V LDO; requires an external 0.1uF decoupling capacitor. · p. 3
42 VDD33: Internal regulator output and internal 3.3V supply input; connect to VIN5 for supply below 3.6V; requires 3.3uF decoupling for supply above 3.6V. · p. 3
18 GND: Ground; alternate name VSS. · p. 3
40 P0.0: P0 bidirectional port, open-drain by default with optional pull-up; AD0 external bus data/address or UDTR UART1 modem output. · p. 3
39 P0.1: P0 bidirectional port, open-drain by default with optional pull-up; AD1 external bus data/address or URTS UART1 modem output. · p. 3
38 P0.2: P0 bidirectional port, open-drain by default with optional pull-up; AD2 external bus data/address or mapped RXD. · p. 3
37 P0.3: P0 bidirectional port, open-drain by default with optional pull-up; AD3 external bus data/address or mapped TXD. · p. 3
36 P0.4: P0 bidirectional port, open-drain by default with optional pull-up; AD4 external bus data/address or UCTS UART1 modem input. · p. 3
35 P0.5: P0 bidirectional port, open-drain by default with optional pull-up; AD5 external bus data/address or UDSR UART1 modem input. · p. 3
34 P0.6: P0 bidirectional port, open-drain by default with optional pull-up; AD6 external bus data/address or URI UART1 modem input. · p. 3
33 P0.7: P0 bidirectional port, open-drain by default with optional pull-up; AD7 external bus data/address or UDCD UART1 modem input. · p. 3
43 P1.0: AIN0 ADC input; T2 timer/counter2 external count input or clock output; CAP1 capture input. · p. 4
44 P1.1: AIN1 ADC input; T2EX timer/counter2 reload/capture input; CAP2 capture input. · p. 4
45 P1.2: AIN2 ADC input; PWM3 timer/counter3 PWM output or CAP3 capture input. · p. 4
46 P1.3: AIN3 ADC analog signal input. · p. 4
47 P1.4: AIN4 ADC input or SCS SPI0 chip select input. · p. 4
48 P1.5: AIN5 ADC input or MOSI SPI0 master output/slave input. · p. 4
1 P1.6: AIN6 ADC input or MISO SPI0 master input/slave output. · p. 4
2 P1.7: AIN7 ADC input or SCK SPI0 serial clock. · p. 4
21 P2.0: A8 higher address output when accessing xbus. · p. 4
22 P2.1: MOSI1 SPI1 master output or A9 external bus address output. · p. 4
23 P2.2: MISO1 SPI1 master input or A10 external bus address output. · p. 4
24 P2.3: SCK1 SPI1 serial clock output or A11 external bus address output. · p. 4
25 P2.4: PWM1 output or A12 external bus address output. · p. 4
26 P2.5: TNOW UART1 transmitting indicator, PWM2 output, A13 address output, or mapped T2EX/CAP2. · p. 4
27 P2.6: RXD1 UART1 serial data input or A14 address output. · p. 4
28 P2.7: TXD1 UART1 serial data output, DA7 direct-address bus output or A15 address output. · p. 4
4 P3.0: RXD UART0 serial data input. · p. 4
7 P3.1: TXD UART0 serial data output. · p. 4
8 P3.2: LED0 data output or INT0 external interrupt input. · p. 4
9 P3.3: LED1 data output, inverted A15 bus address output for chip selection, or INT1 external interrupt input. · p. 4
10 P3.4: LEDC clock output, XCS0 external bus chip select for 4000h–7FFFh, or T0 timer input. · p. 4
11 P3.5: DA6 direct-address bus output or T1 timer input. · p. 4
12 P3.6: WR external bus write signal. · p. 4
13 P3.7: RD external bus read signal. · p. 4
20 P4.0: LED2 data output, A0 direct-address bus output or mapped RXD1. · p. 4
19 P4.1: A1 direct-address bus output. · p. 4
15 P4.2: Mapped PWM3 output/CAP3 input or A2 direct-address bus output. · p. 4
14 P4.3: Mapped PWM1 output or A3 direct-address bus output. · p. 4
6 P4.4: LED3 data output, mapped TNOW/TXD1, or A4 direct-address bus output. · p. 4
5 P4.5/PWM2_/A5: P4.5 with PWM2_ and A5 alternate functions shown in package diagram. · p. 3
16 P4.6/XI/SCS_: GPIO when external oscillator is disabled; XI oscillator connection or direct external clock input. · p. 3
17 P4.7/XO/SCK_: GPIO when external oscillator is disabled; XO oscillator connection; leave suspended for direct external clock input. · p. 3
3 P5.7/RST: P5.7 with RST alternate function shown in package diagram. · p. 3
32 P5.0/DM: P5.0 with USB DM alternate function. · p. 3
31 P5.1/DP: P5.1 with USB DP alternate function. · p. 3
30 P5.4/HM/ALE/XB: P5.4 with HM, ALE and XB alternate functions shown in package diagram. · p. 3
29 P5.5/HP/!A15/XA: P5.5 with HP, !A15 and XA alternate functions shown in package diagram. · p. 3

Ordering codes, by the datasheet

CH559L: LQFP-48 · Standard LQFP 48-pin patch; 7*7mm body; 0.5mm lead pitch · p. 3
CH559T: SSOP-20 · Shrink small outline 20-pin package; 5.30mm body; 0.65mm lead pitch · p. 3

Parameters

ADC (Bit): 10bit
CPU Core: 51 Series
CPU Maximum Speed: 56MHz
Core Size: 8 Bit
Current - Supply: 8mA
Current - Supply(Max): 50mA
Number of I/O: 45
Operating Temperature: -40℃~+85℃
Oscillator Type: Built-in+External
Program Memory Type: FLASH
Program Storage Size: 63KB
Standby Current: 100uA
Voltage - Supply: 2.85V~5.5V
Voltage - Supply(Absolute Max): 3.6V

Order codes

CH559LLCSC C150548

Pinout

The pins of the CH559L
Pin	Name	Type
1	P1.6/AIN6/MISO	Unspecified
2	P1.7/AIN7/SCK	Unspecified
3	P5.7/RST	Unspecified
4	P3.0/RXD	Unspecified
5	P4.5/PWM2_/A5	Unspecified
6	P4.4/LED3/TNOW_/TXD1_/A4	Unspecified
7	P3.1/TXD	Unspecified
8	P3.2/LED0/INT0	Unspecified
9	P3.3/LED1/!A15/INT1	Unspecified
10	P3.4/LEDC/XCS0/T0	Unspecified
11	P3.5/DA6/T1	Unspecified
12	P3.6/WR	Unspecified
13	P3.7/RD	Unspecified
14	P4.3/PWM1_/A3	Unspecified
15	P4.2/PWM3_/CAP3_/A2	Unspecified
16	P4.6/XI/SCS_	Unspecified
17	P4.7/XO/SCK_	Unspecified
18	GND/VSS	Unspecified
19	P4.1/A1	Unspecified
20	P4.0/LED2/A0/RXD1_	Unspecified
21	P2.0/A8	Unspecified
22	P2.1/MOSI1/A9	Unspecified
23	P2.2/MISO1/A10	Unspecified
24	P2.3/SCK1/A11	Unspecified
25	P2.4/PWM1/A12	Unspecified
26	P2.5/TNOW/PWM2/A13/T2EX_/CAP2_	Unspecified
27	P2.6/RXD1/A14	Unspecified
28	P2.7/TXD1/DA7/A15	Unspecified
29	P5.5/HP/!A15/XA	Unspecified
30	P5.4/HM/ALE/XB	Unspecified
31	P5.1/DP	Unspecified
32	P5.0/DM	Unspecified
33	P0.7/AD7/UDCD	Unspecified
34	P0.6/AD6/URI	Unspecified
35	P0.5/AD5/UDSR	Unspecified
36	P0.4/AD4/UCTS	Unspecified
37	P0.3/AD3/TXD_	Unspecified
38	P0.2/AD2/RXD_	Unspecified
39	P0.1/AD1/URTS	Unspecified
40	P0.0/AD0/UDTR	Unspecified
41	VIN5	Unspecified
42	VDD33	Unspecified
43	P1.0/AIN0/T2/CAP1	Unspecified
44	P1.1/AIN1/T2EX/CAP2	Unspecified
45	P1.2/AIN2/PWM3/CAP3	Unspecified
46	P1.3/AIN3	Unspecified
47	P1.4/AIN4/SCS	Unspecified
48	P1.5/AIN5/MOSI	Unspecified

Open-source boards using it

All 9

6 layers243.8 × 243.8 mm
Raven
agranlund/raven
Homemade MC68060 + DSP56303 Atari-compatible computer. Hardware, firmware, and software stack
331 parts87
2 layers28.3 × 17.8 mm
HIDman mini
serisman/HIDman-mini
USB keyboard/mouse for PS/2 (or AT, Serial) computers. This is the miniature hardware version compatible with the https://github.com/rasteri/HIDman firmware.
26 parts32GPL-3.0
2 layers283 × 100 mm
0xLM
llmerlos/0xLM
PICCTRL 0xLM - 6x3+3 Split Keyboard with onboard CH559
100 parts17CERN-OHL-P-2.0
2 layers50 × 79 mm
USBHostRS232
romi2002/RS232USBHost

54 parts
2 layers30.5 × 31.8 mm
Moonphase
toyoshim/Moonphase

10 parts
4 layers35.6 × 39.4 mm
Ckbd
agranlund/raven
Homemade MC68060 + DSP56303 Atari-compatible computer. Hardware, firmware, and software stack
19 parts87
2 layers92 × 75 mm
Ch559-dev board
Netetra/kicad-archive

31 parts
4 layers59.9 × 19.9 mm
CH559-MASS
zOnlyKroks/pcb-consortium

29 partsCC0-1.0

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the CH559L?

Yes. The symbol is EasyEDA_Cloud:CH559L and the footprint Package_QFP:LQFP-48_7x7mm_P0.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH559L?

LQFP-48(7x7), with 48 pins. Its footprint is drawn on this page.

Where is the CH559L datasheet?

WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.

Where can I order the CH559L?

JLCPCB lists it as part C150548, with 1,799 in stock; the sellers' links on this page open their listings.

What can replace the CH559L?

Parts like it in the library: the STM32F103C8T6 by STMicroelectronics, the STM32G070CBT6 by STMicroelectronics, the STM32G030C8T6 by STMicroelectronics and the GD32F303CCT6 by GigaDevice. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the CH559L?

9 boards in 7 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

CH559L

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Ordering codes, by the datasheet

Parameters

Order codes

Pinout

Open-source boards using it

Raven

HIDman mini

0xLM

USBHostRS232

Moonphase

Ckbd

Ch559-dev board

CH559-MASS

Show this part on your page

Questions

Is there a KiCad symbol and footprint for the CH559L?

What package is the CH559L?

Where is the CH559L datasheet?

Where can I order the CH559L?

What can replace the CH559L?

Which open-source boards use the CH559L?

Parts like it

STM32F103C8T6

STM32G070CBT6

STM32G030C8T6

GD32F303CCT6

GD32F103C8T6

GD32F103CBT6

N32G430C8L7

APM32F103CBT6