CH334F

WCH (Nanjing Qinheng Microelectronics)

-40℃~+85℃ 0.4mA 3.3V、5V 4 480Mbps 85mA Hub I2C USB 2.0 QFN-24(4x4) USB HUB Controllers ROHS

Extended

Category: USB HUB Controllers
Package: QFN-24(4x4)
Pins: 25

Overview

The CH334F is a USB HUB Controller made by WCH (Nanjing Qinheng Microelectronics) in a QFN-24(4x4) package with 25 pins. -40℃~+85℃ 0.4mA 3.3V、5V 4 480Mbps 85mA Hub I2C USB 2.0 QFN-24(4x4) USB HUB Controllers ROHS.

PCBKit's library has its KiCad symbol (Interface_USB:CH334F, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm, from KiCad's library), ready for a KiCad board. 2,561 are in stock at JLCPCB (part C5187527). 30 open-source boards in 26 repositories on GitHub use it.

Symbol

Interface_USB:CH334FFrom KiCad's library

Footprint

Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mmFrom KiCad's library

From the datasheet

Supply, least: 4.5 V · V5, recommended operating min, internal LDO enabled · p. 19
Supply, most: 5.25 V · V5, recommended operating max, internal LDO enabled · p. 19
Supply, least: 3.15 V · V5, recommended operating min, external 3.3 V supply · p. 19
Supply, most: 3.5 V · V5, recommended operating max, external 3.3 V supply · p. 19
Supply, absolute maximum: 5.5 V · V5, absolute max · p. 19
Supply, absolute maximum: 4 V · VDD33, absolute max · p. 19
Works from: -40 °C · Operating ambient temperature min · p. 19
Works up to: 85 °C · Operating ambient temperature max · p. 19
Takes working: 85 mA · Typical operating current, high-speed upstream and four high-speed downstream ports · p. 19
Takes at most: 85 mA · Largest listed typical operating current, high-speed upstream and four high-speed downstream ports · p. 19
Takes asleep: 120 µA · Typical deep sleep current, excluding 1.5 kΩ pull-up, or self-sleep without USB host · p. 19

What it is and has

USB downstream ports: 4 USB 2.0 ports, backward compatible with USB 1.1 · p. 1
Port power control: Independent or GANG control · p. 1
Overcurrent detection: Independent or GANG detection; 5 V tolerant overcurrent inputs · p. 1
Transaction translators: MTT mode with an independent TT for each port · p. 1
Status indication: Port status LEDs · p. 1
External EEPROM configuration: Composite devices, non-removable devices, VID, PID and port configuration · p. 1
Clock: Crystal oscillator with internal capacitors; external 12 MHz input; internal 480 MHz PLL for USB PHY · p. 1
Internal clock: High-precision clock permits operation without an external 12 MHz crystal · p. 1
USB termination: Internal upstream 1.5 kΩ pull-up and downstream host pull-down resistors · p. 1
Internal regulator: LDO converts USB bus voltage to 3.3 V operating supply · p. 1
USB ESD: 6 kV, Class 3A · p. 1

Specifications

Parameter	Conditions	As printed	Page
工作时的环境温度 TA		min -40 · max 85 ℃	19
储存时的环境温度 TS		min -55 · max 150 ℃	19
LDO 输入电源电压 V5	V5 引脚接电源，GND 引脚接地	min -0.4 · max 5.5 V	19
工作电源电压 VDD33	VDD33 引脚接电源，GND 引脚接地	min -0.4 · max 4 V	19
5V 耐压输入引脚上的电压 V5I		min -0.4 · max 5.3 V	19
USB 信号引脚上的电压 VUSB	最大值：VDD33+0.4 V	min -0.4 V	19
其它（3.3V）输入或者输出引脚上的电压 VGPIO	最大值：VDD33+0.4 V	min -0.4 V	19
LDO 输入电源电压@V5 V5	TA=25℃；启用内部 LDO	min 4.5 · typ 5 · max 5.25 V	19
外供电源电压@V5 V5	TA=25℃；无需内部 LDO	min 3.15 · typ 3.3 · max 3.5 V	19
LDO 输出电压@VDD33 VDD33	TA=25℃；启用内部 LDO	min 3.15 · typ 3.3 · max 3.5 V	19
外供 3.3V 电压@VDD33 VDD33	TA=25℃；无需内部 LDO	min 3.15 · typ 3.3 · max 3.5 V	19
内部电源调节器 LDO 对外负载能力 ILDO	TA=25℃，V5=5V 或 V5=VDD33=3.3V	max 20 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行高速，4 个下行高速	typ 85 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行高速，1 个下行高速	typ 42 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行高速，4 个下行全速	typ 25 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行高速，1 个下行全速	typ 21 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行全速，4 个下行全速	typ 20 mA	19
工作电流 ICC	TA=25℃，V5=5V 或 V5=VDD33=3.3V；上行高速或上行全速，下行无设备，含 1.5KΩ上拉	typ 0.3 mA	19
深度睡眠电源电流（不含 1.5KΩ上拉） ISLP	TA=25℃，V5=5V 或 V5=VDD33=3.3V；或：自身睡眠电源电流（不接 USB 主机）	typ 0.12 · max 0.4 mA	19
除过流检测外引脚的低电平输入电压 VIL	TA=25℃，V5=5V 或 V5=VDD33=3.3V	min 0 · max 0.8 V	19
除过流检测外引脚的高电平输入电压 VIH	TA=25℃，V5=5V 或 V5=VDD33=3.3V；最大值：VDD33	min 2 V	19
RESET#引脚的低电平输入电压 VILRST	TA=25℃，V5=5V 或 V5=VDD33=3.3V	min 0 · max 0.75 V	19

Parameters

Current - Supply: 85mA
Current - Supply(Max): 85mA
Data Rate: 480Mbps
Features: Low-power mode
Memory Interface: I2C
Number of Channels: 4
Operating Temperature: -40℃~+85℃
Quiescent Supply Current: 0.4mA
Standby Current: 120uA
USB Protocol: USB 2.0
Voltage - Supply: 3.15V~5.25V
Voltage - Supply(Absolute Max): 5.5V
type: Hub

Order codes

CH334FLCSC C5187527

Pinout

The pins of the CH334F
Pin	Name	Type
1	OVCUR	Input
2	NC	Not connected
3	XO	Passive
4	XI	Passive
5	DM4-	Input/output
6	DP4+	Input/output
7	DM3-	Input/output
8	DP3+	Input/output
9	DM2-	Input/output
10	DP2+	Input/output
11	DM1-	Input/output
12	DP1+	Input/output
13	LED3/SCL	Input/output
14	DMU-	Input/output
15	DPU+	Input/output
16	RESET/CDP	Input
17	NC	Not connected
18	PSELF	Input
19	V5	Power in
20	VDD33_{LDO}	Power out
21	LED4/SDA	Input/output
22	LED1	Input/output
23	LED2	Input/output
24	PWREN	Output
25	GND	Power in

Open-source boards using it

All 30

6 layers133 × 92 mm
Motherboard
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
264 parts4.3kMIT
4 layers28.2 × 26.1 mm
DongleHiderPlus PCB
LeoDJ/FW-EC-DongleHiderPlus
Framework Expansion Card that includes a USB hub to hide a bare dongle inside and still have a USB-A port externally
23 parts497CERN-OHL-W-2.0
4 layers26 × 46.5 mm
Day 02 Four Port USB C
i2cjak/Framework_Expansion_Cards
In which i2cjak creates a new expansion card design every day until he is given a NICE Framework laptop
54 parts95CERN-OHL-P-2.0
4 layers86 × 56 mm
Rv1106
EPSILON0-dev/Raven1106
Raspberry Pi-style SBC based on the Rockchip RV1106G3
217 parts4
4 layers210 × 120 mm
Frank zx
rh1tech/frank-lab
FRANK Board Laboratory (work-in-progress board prototopyes)
273 parts4GPL-3.0
4 layers28 × 28 mm
Lichtenprog
cr1tbit/lichtenprog
USB-to-UART / (esp8266 / esp32) programmer with 3.3v supply
76 parts2CERN-OHL-P-2.0
4 layers51.2 × 51.2 mm
The extender
H3wastooshort/the_extender
it extends your phones storage, battery life, and audio interfaces
123 parts2GPL-3.0
4 layers81.3 × 61 mm
P4hil
tannewt/p4hil
ESP32-P4 powered hardware in the loop
224 parts2

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/wch/CH334F" title="CH334F in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/wch/CH334F.jpg" alt="CH334F" width="1200" height="900">

A picture that opens the part, for a README

[![CH334F](https://pcbkit.io/embed/parts/wch/CH334F.jpg?size=s)](https://pcbkit.io/parts/wch/CH334F)

Questions

Is there a KiCad symbol and footprint for the CH334F?

Yes. The symbol is Interface_USB:CH334F and the footprint Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH334F?

QFN-24(4x4), with 25 pins. Its footprint is drawn on this page.

Where is the CH334F datasheet?

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

Where can I order the CH334F?

JLCPCB lists it as part C5187527, with 2,561 in stock; the sellers' links on this page open their listings.

What can replace the CH334F?

Parts like it in the library: the AP33772SDKZ-13-FA02 by Diodes Incorporated. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the CH334F?

30 boards in 26 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

AP33772SDKZ-13-FA02
W-QFN4040-24-40℃~+85℃ 1 3.3V~31V 3.3mA Controller I2C Port power switch control、Port status monitoring、Overcurrent Protection、ESD protection、PD protocol support、Downstream port power switch、Over temperature protection、Wake-up function W-QFN4040-24 USB HUB Controllers ROHSDiodes IncorporatedUSB HUB Controllers