CH334R

WCH (Nanjing Qinheng Microelectronics)

-40℃~+85℃ 0.4mA 3.3V、5V 4 480Mbps 85mA Hub I2C USB 2.0 QSOP-16-150mil USB HUB Controllers ROHS

Extended

Category: USB HUB Controllers
Package: QSOP-16-150mil
Pins: 16

Overview

The CH334R is a USB HUB Controller made by WCH (Nanjing Qinheng Microelectronics) in a QSOP-16-150mil package with 16 pins. -40℃~+85℃ 0.4mA 3.3V、5V 4 480Mbps 85mA Hub I2C USB 2.0 QSOP-16-150mil USB HUB Controllers ROHS.

PCBKit's library has its KiCad symbol (Interface_USB:CH334R, from KiCad's library) and its footprint (Package_SO:QSOP-16_3.9x4.9mm_P0.635mm, from KiCad's library), ready for a KiCad board. 21,053 are in stock at JLCPCB (part C4154405). 46 open-source boards in 36 repositories on GitHub use it.

Symbol

Interface_USB:CH334RFrom KiCad's library

Footprint

Package_SO:QSOP-16_3.9x4.9mm_P0.635mmFrom 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, upstream high speed and four downstream high speed ports · p. 19
Takes asleep: 120 µA · Typical deep sleep current, excluding 1.5KΩ pull-up, or sleep without USB host · p. 19
Data rate, most: 480 Mbit/s · USB downstream high speed max · p. 1

What it is and has

USB ports: 4 USB 2.0 downstream ports; USB 1.1 compatible · p. 1
Power control: Independent per-port or GANG control · p. 1
Overcurrent detection: Independent per-port or GANG detection; 5 V tolerant inputs · p. 1
Transaction translators: MTT with an independent TT per port · p. 1
Status indication: Port status LEDs · p. 1
EEPROM configuration: Composite device support, non-removable devices, custom VID, PID and port configuration · p. 1
Internal configuration memory: Factory customization of manufacturer, product information and configuration · p. 1
Power source: Self-powered or bus-powered; configurable through I/O pins or external EEPROM · p. 1
Clock: Crystal oscillator with built-in capacitors, external 12 MHz input support, 480 MHz USB PHY PLL · p. 1
Internal clock: High-precision clock supports operation without an external 12 MHz crystal · p. 1
USB termination: Built-in upstream 1.5KΩ pull-up and downstream host pull-down resistors · p. 1
Internal regulator: LDO converts USB bus voltage to the chip's 3.3 V supply · p. 1
ESD: USB pins: 6KV, 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 ISLP	TA=25℃，V5=5V 或 V5=VDD33=3.3V；不含 1.5KΩ上拉；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
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

CH334RLCSC C4154405

Pinout

The pins of the CH334R
Pin	Name	Type
1	DM4-	Input/output
2	DP4+	Input/output
3	DM3-	Input/output
4	DP3+	Input/output
5	DM2-	Input/output
6	DP2+	Input/output
7	DM1-	Input/output
8	DP1+	Input/output
9	RESET/CDP	Input
10	DMU-	Input/output
11	DPU+	Input/output
12	V5	Power in
13	VDD33_{LDO}	Power out
14	GND	Power in
15	XO	Passive
16	XI	Passive

Open-source boards using it

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241 parts2GPL-3.0

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Questions

Is there a KiCad symbol and footprint for the CH334R?

Yes. The symbol is Interface_USB:CH334R and the footprint Package_SO:QSOP-16_3.9x4.9mm_P0.635mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH334R?

QSOP-16-150mil, with 16 pins. Its footprint is drawn on this page.

Where is the CH334R datasheet?

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

Where can I order the CH334R?

JLCPCB lists it as part C4154405, with 21,053 in stock; the sellers' links on this page open their listings.

Which open-source boards use the CH334R?

46 boards in 36 repositories on GitHub; the most starred are listed on this page, with their KiCad files.