With the rapid proliferation of USB interface in the embedded world, developers are looking for easiest ways to add USB to microcontroller-based applications in their design. ASIX’s new AX781x0 family features four USB connectivity bridge solutions including USB 2.0 to Single Serial (AX78120), USB 2.0 to Dual Serial (AX78120), USB 2.0 to Quad Serial (AX78140) and USB 2.0 to Dual Serial and Single Parallel (AX78140) controllers. Enabling smooth migration from legacy system using ASIX’s MCS78x0 series, AX78120/AX78140 provide pin-to-pin compatible and driver backward compatible with MCS7810/MCS7820/MCS7840.
AX78120
USB 2.0 to Multi I/O (1S or 2S) Controller
Add Favorites
Overview
Features
● Single chip USB 2.0 to Multi I/O (1S or 2S) Controller
Target Applications
Serial Attached Devices
Diagram
Development Board
AX78120 USB 2.0 to 2S Demo Board (AX78120-DMB-2S-1)
This is an AX78120 USB 2.0 to 2S adapter for users to evaluate AX78120 USB 2.0 to 2S functionalities.
FAQs
Hardware Design Considerations
-
Is AX78120 IC pin-to-pin compatible to MCS7820 IC?
Yes, AX78120 IC is pin-to-pin compatible to MCS7820 IC.
-
Where can I obtain the latest AX78120 datasheet, reference schematic and other hardware design archives?
Please register MyASIX membership and then download the latest AX78120 datasheet, reference schematic, PCB layout guide, etc. from AX78120 Product web page directly.
-
Can ASIX help me to review my own AX78120 schematic and PCB layout?
Yes, please deliver your own AX78120 schematic and PCB layout files to ASIX’s Support (support@asix.com.tw) for further review before making your own AX78120 PCB board.
-
Is the I2C EEPROM required for AX78120 2S applications?
The I2C EEPROM is optional for AX78120 2S applications.
-
How to program AX78120 I2C EEPROM in-circuit?
The AX78120 supports a Windows EEPROM Utility to program the I2C EEPROM in-circuit.
-
Does ASIX support RS-232/RS-485 transceivers solutions?
Yes, ASIX also supports different RS-232/RS-485 transceivers solutions. Please visit ASIX UART Transceivers/EL Drivers Products Web page for more details.
Software Design Considerations
-
Can AX78120 install the original MCS7820 drivers directly?
Yes, you should be able to install the original MCS7820 drivers on AX78120 applications directly. If you have any problems, please download the latest AX781x0 drivers from AX78120 Driver Download web page instead. The latest AX781x0 drivers supports all AX78140/AX78120/MCS7840/MCS7820/MCS7810 applications.
-
Where can I obtain the latest AX78120 drivers?
Please visit AX78120 Driver Download web page to download proper drivers for your AX78120 target applications.
-
How to change the COM port number of AX78120?
Yes, we can change the COM port number by using a drop down list located in AX78120 Windows COM Port Properties. To change the COM port number, go to "COM Port Properties => Features => COM Port Number".
Download
Hardware Design Documentation
AX78120 USB 2.0 to 2S Demo Board Reference Schematic
Software & Tools
Linux kernel 5.x/4.x/3.x/2.6.x Driver
For all Android systems, Linux kernel 2.6.14 and laterWindows 11 64-bit Driver
For x64 CPU platform, HLK/WHCK certifiedWindows 11 ARM 64-bit Driver
For ARM x64 CPU platform, HLK/WHCK certifiedWindows 10 32-bit Driver
For x86 CPU platform, HLK certifiedWindows 10 64-bit Driver
For x64 CPU platform, HLK certifiedWindows 8.x 32-bit Driver
For x86 CPU platform, HLK/WHCK certifiedWindows 8.x 64-bit Driver
For x64 CPU platform, HLK/WHCK certifiedWindows 7/Vista/XP 32-bit Driver
For x86 CPU platform, WHCK certifiedWindows 7/Vista/XP 64-bit Driver
For x64 CPU platform, WHCK certified