USB to TTL Serial Cable

 

USB has never been so easy

The AVIT Research USB to TTL Galvanic Isolated Serial cable is designed to allow quick and easy connection to sensitive circuitry without any need to be familiar with the USB specification. The cable contains a Silicon Labs USB to serial converter chip that is galvanic isolated up to 4000V. The cable is 1.8m and terminated with a standard 0.1” pitch header. The galvanic isolation barrier isolates the ground and prevents noise currents on the data bus from entering the local ground and interfering with or damaging sensitive circuitry.

  • USB to TTL Level Serial UART with Digital Isolation

  • Compatible with legacy software using Virtual COM port (VCP).

  • Galvanic isolation of up to 4000V

  • 4 kV ESD protection

  • Compatibility with most operating systems.

  • Supports baud rates up to 1Mbit.

  • Supply voltage of +3v to +5v (inputs are 5v tolerant when powered at +3v).

  • 1.8m cable with 4-way SIL 0.1” connector

  • FCC, CE, ROHS compliant.

  • Can be customised with user USB descriptors, and custom Baud rates using software.

  • Custom connectors available for volume orders.

Virtual COM Port Driver software allows the cable to work with existing COM Port applications for Windows 7/Vista/XP, Mac OSX/ OS-9 and Linux. Direct Driver software is also available for MC Windows 7/Vista/XP and CE. Neither driver options require any need for familiarity with the USB specifications.

Frequently Asked Questions - Click here to view the most frequently asked questions and their answers.

Wire

Function

Black

Ground (isolated from USB ground)

Red

PC serial Tx (TTL Rx)

Blue

PC serial Rx (TTL Tx) with 10k pull-up

Yellow

Vcc +3v to +5v supply voltage (input)

 

Parameters

Min

Typ

Max

Units

1/t

Serial port speed

300

 

1M

baud

VCC

Supply voltage

3.0

 

5.25

V

VIH

Input Voltage threshold (High)

2.0

 

Vcc

V

VIL

Input Voltage threshold (Low)

0

 

0.8

V

IOH

Output high drive current

 

 

4

mA

IOL

Output low drive current

-4

 

 

mA

T

Operating Temperature

-40

 

+85

°C

 

Mating Connector

Harwin M20-9990405 or M20-9990406
Farnell 511-729 or 623-059


Downloads - OEM Branded


Windows Drivers
3.7 MB

Windows XP/2003/Vista(32/64bit)/Win7(32/64bit)/Win8,8.1(32/64bit) Drivers v6.6.1
Download and extract to a folder, when windows detects the USB device select this folder as a location for the driver search


Data Sheet
378 KB

USB to Serial TTL Galvanic Data Sheet

 

Pricing - OEM VERSION

Description

Price

Qty

 

1+ 5+ 10+ 50+ 100+

USB to TTL*

£

15.00

£

13.75

£

12.50

£

11.00

£

10.00

*For high volume or customisation please contact AVIT Research Ltd

Copyright © 2001-2017 AVIT Research ltd. Last modified: 20/06/17