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CH315H 데이터시트 PDF




ETC에서 제조한 전자 부품 CH315H은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 CH315H 자료 제공

부품번호 CH315H 기능
기능 USB signal isolation control chip
제조업체 ETC
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CH315H 데이터시트, 핀배열, 회로
The DataSheet of CH315 (the first)
1
USB extension control chip CH315G
USB signal isolation control chip CH315H
DataSheet
Version:1A
http://wch.cn
http://wch-ic.com
1. Introduction
CH315G is USB extension control chip, used for USB signal real time transmit and extend transfer
distance.
CH315H is USB signals isolation control chip, used for USB bus optical isolator or magnetic isolator.
CH315 supports full-speed and low-speed transfer, support USB device dynamic insert and remove.
The following is application image.
Power
PC
Or other
USB
Host
USB
CH315G
Power
CH315G
Power
Upstream
UP#=GND
Long distance
Signal transfer
Full-speed 75m
Low-speed 300m
Downstream
UP#=VCC
USB
USB keyboard
USB mice
USB Flash
Drive /Flash
disk
USB printer
USB collection
box
USB controller
PC
Or other
USB
Host
Power
USB
CH315H
Upstream
UP#=GND
Photic coupler
isolator
CH315H
Power
Magnetic
coupler
isolator
Downstream
UP#=VCC
USB
USB keyboard
USB mice
USB Flash
Drive /Flash
disk
USB printer
USB collection
box
USB controller
2. Features
supports 12Mbps full-speed and 1.5Mbps low-speed USB transfer, compatible with USB 2.0.
supports USB control transfer, bulk transfer, interrupt transfer, synchronous/isochronous transfer.




CH315H pdf, 반도체, 판매, 대치품
The DataSheet of CH315 (the first)
4
transfer.
CH315H support the common type 6N137 single channel high-speed photic coupler (need four) or the
type is HCPL-2630,2631,0630,0631 double channels (only need two). The isolate power is determined by
photic coupler, the typical isolate power is 5000V of 6N137. CH315H also support magnetism coupler,
recommended to use photic coupler, not influenced by the electromagnetism. In order to support 12Mbps
USB full-speed signal, the transfer speed is more than 10Mbps of photic coupler or magnetism coupler.
CH315 is hardware project of USB signal extension and USB signal electric isolation, compatible with
the relative criterion, completely transparent to the USB protocol. For the CH315, no need any drive, but the
USB device may need to install driver, the method is the same with the no isolation. The common USB
Flash Drive, keyboard, mice and other USB device may no need driver.
CH315 can automatically detect USB full-speed and USB low-speed, support plug and play,
automatically detect and simulate the USB device connect and disconnect. CH315G can be used to produce
active USB extension cable, extension USB transmission distance, signal acquisition and on-line remote
control; CH315G can be used to produce optical isolator USB signals and reduce signal interference,
improve signal acquisition accuracy.
6. Parameter
6.1. Absolute maximum rating (Stresses above those listed can cause permanent damage to the device.
Exposure to maximum rated conditions can affect device operation and reliability.)
Name
Parameter note
Min. Max. Units
TA Ambient operating temperature -40 85
TS Storage temperature -55 125
VCC
Voltage source (VCC connects to power, GND to ground)
-0.5
6.0
V
VIO The voltage of input or output pin -0.5 VCC+0.5 V
6.2. Electrical parameter (test conditions: TA=25, VCC=5V, excluding pin connection of USB bus)
Name
Note of parameter
Min.
Typ.
Max.
Unit
s
VCC
Power voltage
3.2 5 5.3 V
ICCs
Static source current
2 5 mA
ICCa
Source current when working
20 50 mA
VIL Input Voltage LOW OPIN/N
-0.5 0.8 V
VIH Input Voltage HIGH OPIP/N
2.0 VCC+0.5 V
VOL
Output Voltage LOW (draw 8mA current) OPOP/N
0.5 V
VOH Output Voltage HIGH (output 8mA current) OPOP/N VCC-0.5
V
IUPup Input current in UP# pin with internal pull-up resistor 3 150 300 uA
IUPact Input current in ACT# pin with internal pull-up resistor 100 230 400 uA
Lfs Extension distance of full-speed USB signal
75 m
Lls Extension distance of low-speed USB signal
300
m
7. Application
7.1. Active USB extension cable (following image)
The following USB extension cable is composed by two groups CH315G circuit.

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관련 데이터시트

부품번호상세설명 및 기능제조사
CH315G

USB extension control chip

ETC
ETC
CH315H

USB signal isolation control chip

ETC
ETC

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