TTL234X SERIES RANGE OF CABLES Datasheet
Version 1.0
Document Reference No.: FT_001394 Clearance No.: FTDI#520
7.2 TTL-234X-3V3-2mm Cable Signal Descriptions
Header Pin
Name
Type
Output
KEY
Colour
Description
Number
Ring Indicator Control Input. When remote wake up is
enabled taking RI# low (20ms active low pulse) can be
used to resume the VMUSIC2 or VDRIVE2 host controller
from suspend. Connected to TXD.
1
2
RI#
Blue
This connection is keyed to connect to the VRDIVE2 or the
VMUSIC2 modules
KEY
KEY
3
4
5
6
7
8
RTS#
RXD
Output
Input
Green
Yellow
Orange
Red
Request To Send Control Output / Handshake signal.
Receive Asynchronous Data input.
Transmit Asynchronous Data output.
+5V output,
TXD
Output
Output
Input
VCC
CTS#
GND
Brown
Black
Clear to Send Control input / Handshake signal.
Device ground supply pin.
GND
Table 7.1 TTL-234X-3V3-2mm Cable Signal Descriptions
7.3 TTL-234X-3V3-2mm Electrical Parameters
Parameter Description
Minimum Typical Maximum
Units
Conditions
Dependant on the USB
port that the TTL-234X-
3V3-2mm is connected to
VCC
Supply Voltage
Supply Current
4.75
5.0
5.25
V
Assuming connected to
direct to a host port or
a powered hub, and
enumerated
Icc
-
-
450
+85
mA
oC
Operating Temperature
Range
T
-40
Table 7.2 TTL-234X-3V3-2mm Electrical Parameters
Parameter Description
Minimum Typical Maximum
Units
Conditions
Voh
Vol
Output Voltage High
2.97
-
VCCIO
0
VCCIO
0.4
V
V
VCCIO=3.3V
Output Voltage Low
Input Low Switching
Threshold
Vil
-
-
-
0.8
-
V
V
LVTTL
LVTTL
Input High Switching
Threshold
Vih
2
Table 7.3 TTL-234X-3V3-2mm I/O Pin Characteristics
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