Copyright © 2009 Future Technology Devices International Limited
18
Document Reference No.: FT_000151
DS_US232R-10(R-100)
USB TO RS232 ADAPTER CABLE Data
Sheet
Version 1.0
Clearance No.: #
99
4
Electrical details
4.1
USB
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
USB_VCC
Input Power Voltage*
4.25
5.0*
5.25
V
*Present when USB
cable is attached and
USB Host or Hub
powered.
I
cc
USB current
30
50
mA
Table 4.1 USB Electrical Details
4.2
RS232
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
V
trans
Transmitter output
voltage swing
± 5
V
RL = 3KΩ
V
rec
Receiver input voltage
range
±2.4
±25
V
Input resistance = 3KΩ
to 7KΩ
ESD HBM
±15
KV
RS-232 Inputs and
Outputs
Table 4.2 RS232 Electrical Details