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TTL-232R датащи(PDF) 12 Page - Future Technology Devices International Ltd.

номер детали TTL-232R
подробное описание детали  TTL to USB Serial Converter Range of Cables
PDF  26 Pages
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производитель  FTDI [Future Technology Devices International Ltd.]
домашняя страница  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

TTL-232R датащи(HTML) 12 Page - Future Technology Devices International Ltd.

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11
Document Reference No.: FT_000054
TTL-232R TTL TO USB SERIAL CONVERTER RANGE OF CABLES Datasheet Version 2.03
Clearance No.: FTDI# 53
Header Pin
Number
Name
Type
Colour
Description
4
TXD
Output
Orange
Transmit Asynchronous Data output.
5
RXD
Input
Yellow
Receive Asynchronous Data input.
6
RTS#
Output
Green
Request To Send Control Output / Handshake signal.
Table 4.1 TTL-232R-5V and TTL-232R-3V3 Cable Signal Descriptions
4.3 TTL-232R-5V and TTL-232R-3V3 Electrical Parameters
4.3.1 TTL-232R-5V Electrical Parameters
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
VCC
Output Power Voltage
4.25
5.0
5.25
V
Dependant on the USB
port that the TTL-232R-
5V is connected to
IO
Output Power Current
-
-
75
mA
Must be less that 2.5mA
during suspend.
T
Operating Temperature
Range
-40
-
+85
oC
Table 4.2 TTL-232R-5V I/O Operating Parameters
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Voh
Output Voltage High
3.2
4.1
4.9
V
I source = 2mA
Vol
Output Voltage Low
0.3
0.4
0.6
V
I sink = 2mA
Vin
Input Switching Threshold
1.0
1.2
1.5
V
VHys
Input Switching Hysteresis
20
25
30
mV
Table 4.3 TTL-232R-5V I/O Pin Characteristics
4.3.2 TTL-232R-3V3 Electrical Parameters
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
VCC
Output Power Voltage
4.25
5.0
5.25
V
Dependant on the USB
port that the TTL-232R-
3V3 is connected to
IO
Output Power Current
-
-
75
mA
Must be less that 2.5mA
during suspend.
T
Operating Temperature
Range
-40
-
+85
oC
Table 4.4 TTL-232R-3V3 I/O Operating Parameters



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