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Home >> Products >> I/O Connectivity ICs >> USB Bridge >> MCS7705

 MCS7705 -- USB 1.1 to Single Parallel Controller

The MCS7705 controller provides bridging between the Universal Serial Bus (USB) port, and a Parallel Printer port. This device contains all the necessary logic to communicate with the host computer via the USB Bus. It supports Printers with hardware accelerated SPP mode.

In addition, the MCS7705 contains a 3.3V regulator and operates in Bus-Powered mode.

The MCS7705 has a reduced frequency (6MHz) crystal oscillator. This combination of features allows significant cost savings in system design along with straightforward implementation of Parallel Printer port functionality into PC peripherals using the host's USB port.


  • Single 5V Operation
  • Low Power
  • USB Specification 1.1 compliant
  • Operation over the extended USB Bus voltage range (4.5 to 5.5V)
  • On-Chip 3.3V Voltage Regulator
  • Internal Power-On Reset
  • Single Printer Port Interface
  • 2KV In-Circuit ESD protection for lower cost of external components
  • Available in 48-Pin QFP Package
  • Operating temperature range: 0°C to +70°C
Target Applications:
  • Printer Server
  • Printer Interface

 Block Diagram


 Selection Guide


Technical Documentation

 Product Brief, Product Introduction and Datasheet

MCS7705 Product Brief103.4 KB2007-08-06
MCS7705 Datasheet 650.8 KB2012-09-12
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MCS7705 Reliability Report 193 KB2011-12-15
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MCS7705 RoHS Report   
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Hardware Design Documentation

 Reference Schematics

MCS7705 USB 1.1 1 Parallel Reference Schematic for Protel 151.5 KBv1.012013-04-18

 Bill of Materials, Application Notes and Layout Guides

MCS7705 PCB Layout Guide 213.1 KBv1.002011-09-28
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 PCB Layout, Gerber and IBIS Model

MCS7705 IBIS Model 69.4 KB2011-11-14
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Driver TypeRevision Release DateDescriptionFile Size
Linux kernel 3.x/2.6.x Driver V2.0.02014-02-19 For Android 1.x/2.x/3.x/4.x, Linux kernel 2.6.x and later18.2 KB
Windows 10 32-bit Drivers Package v1.20.1.02018-05-10 For 32-bit x86 CPU platform, HLK/WHCK certified6.3 MB
Windows 10 64-bit Drivers Package v1.20.1.02018-05-10 For 64-bit x86 CPU platform, HLK/WHCK certified5.9 MB
Windows 8.x/7/Vista/XP 32-bit Drivers Package V2.0.4.02017-05-18 For 32-bit x86 CPU platform, HLK/WHCK certified2.6 MB
Windows 8.x/7/Vista/XP 64-bit Drivers Package V2.0.4.02017-05-18 For 64-bit x86 CPU platform, HLK/WHCK certified2.5 MB


click here for more MCS7705 FAQs....
Q0001: Where can I obtain the latest MCS7720/MCS7715/MCS7705 datasheet, reference schematic and other hardware design archives?
A0001: Please register MyASIX membership ( and then download the latest MCS7720/MCS7715/MCS7705 datasheet, reference schematic, PCB layout guide, etc. from ASIX I/O Connectivity Product web pages ( directly.

Q0002: Can ASIX help me to review my own MCS7720/MCS7715/MCS7705 schematic and PCB layout?
A0002: Yes, please deliver your own MCS7720/MCS7715/MCS7705 schematic and PCB layout files to ASIX's Support ( for further review before making your own MCS7720/MCS7715/MCS7705 PCB board.

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