Revision: A1.
3
The design and specifications are subject to change without notice for improvement
www.CommFront.com
■
INTRODUCTION
This USB
TTL 3.3V converter is a port-powered bi-directional USB to TTL/CMOS 3.3V converter,
which can be used to convert any standard full-duplex USB port into a full-duplex TTL 3.3V port and
vice versa. The unit is powered from the USB port and it supports data auto-sensing & self-adjusting,
and therefore, no baud rate setting is required. The unit uses the latest FTDI chipset and is fully
compatible with Windows
10
/
8/7/Vista/XP/Server2008 /2003/2000/98 (32-bit), Windows
10/
8/7/Vista/XP/Server2008/2003 (64-bit), Win CE, Mac, and Linux. Note: the latest drivers (chipset
FT232B) are available at
http://www.ftdichip.com/drivers/vcp.htm
.
■
FEATURES
•
Adds one TTL 3.3V port to your USB port.
•
Supports 300 to 115,200 baud (auto-sensing and self-adjusting).
•
Supports Windows
10/
8/7/Vista/XP/Server2008/Server2003/2000/98 (32-bit), Windows
10/
8/7/
Vista/XP/Server2008/Server2003 (64-bit), Win CE, Mac, and Linux.
•
Supports remote wakeup and power management.
•
Plug and play (hot-pluggable, data format auto-sensing and self-adjusting).
•
Port-powered, no external power required.
•
No IRQs required, no IRQ conflicts.
•
Surface Mount Technology manufactured to RoHS and ISO-9001 standards.
•
Safety: Strictly certified by SGS/TUV (Cert no. SGS - EM2008/20060C; EM/2008/20061C; TUV
- SG-CE-090012).
•
5-year manufacturer’s warranty.
■
SPECIFICATIONS
Compatibility:
USB 2.0 (backward compatible) and TTL/CMOS 3.3V level
Power Source:
From USB port
Current Consumption:
Less than 100mA
Baud Rates:
300 to 115,200bps (auto-sensing and self-adjusting)
Distance:
USB side: 10ft (3m); TTL side: 10ft (3m)
Connectors:
USB side: Type A female; TTL side: DB-9 male;
Termination board: DB-9 female and a 3-way terminal block
Dimensions (HxWxD):
0.63 x 1.3 x 5.5 in (16 x 32 x 140 mm) (excluding cable)
Cable Length:
3.3 ft (1 m)
Weight:
3.8 oz (109 g)
Operating Temperature:
32ºF to 95ºF (0ºC to 35ºC)
Operating Humidity:
Up to 90% RH (no condensation)
■
PIN ASSIGNMENT
TTL Side (DB-9 Male Connector / Terminal Block):
DB-9 Pin:
1
3
5
Terminal Block:
TX
RX
GND
Function:
TTL OUT
TTL IN
GND
Termination Board:
•
The numbers on the left indicate the pin assignment of DB-9
male connector (TTL side).
•
TX is the TTL Output, RX is the TTL Input.
USB
TTL 3.3V Converter
Part Number: USB-232-1+TTL33-232-1
Communications made easy