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TRSF3223ECPWRG4 Datasheet(PDF) 2 Page - Texas Instruments

Part # TRSF3223ECPWRG4
Description  3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH 짹15-kV ESD PROTECTION
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TRSF3223ECPWRG4 Datasheet(HTML) 2 Page - Texas Instruments

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TRSF3223E
SLLS824A
– AUGUST 2007 – REVISED SEPTEMBER 2011
www.ti.com
Flexible control options for power management are available when the serial port is inactive. The
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is
set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 mA.
Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown to occur.
Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled,
the device is automatically activated when a valid signal is applied to any receiver input. The INVALID output is
used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any
receiver input voltage is greater than 2.7 V or less than
–2.7 V, or has been between –0.3 V and 0.3 V for less
than 30
μs. INVALID is low (invalid data) if the receiver input voltage is between –0.3 V and 0.3 V for more than
30
μs. Refer to Figure 4 for receiver input levels.
Table 1. ORDERING INFORMATION
TA
PACKAGE(1) (2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Tube of 25
TRSF3223ECDW
SOIC
– DW
TRSF3223EC
Reel of 2000
TRSF3223ECDWR
Tube of 70
TRSF3223ECDB
0
°C to 70°C
SSOP
– DB
RT23EC
Reel of 2000
TRSF3223ECDBR
Tube of 70
TRSF3223ECPW
TSSOP
– PW
RT23EC
Reel of 2000
TRSF3223ECPWR
Tube of 25
TRSF3223EIDW
SOIC
– DW
TRSF3223EI
Reel of 2000
TRSF3223EIDWR
Tube of 70
TRSF3223EIDB
SSOP
– DB
RT23EI
–40°C to 85°C
Reel of 2000
TRSF3223EIDBR
Tube of 70
TRSF3223EIPW
TSSOP
– PW
RT23EI
Reel of 2000
TRSF3223EIPWR
QFN
– RGW
Reel of 3000
TRSF3223EIRGWR
RT23EI
(1)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
FUNCTION TABLES
ABC
Each Driver(1)
INPUTS
OUTPUT
DRIVER STATUS
VALID RIN
DOUT
DIN
FORCEON
FORCEOFF
RS-232 LEVEL
X
X
L
X
Z
Powered off
L
H
H
X
H
Normal operation with
auto-powerdown disabled
H
H
H
X
L
L
L
H
Yes
H
Normal operation with
auto-powerdown enabled
H
L
H
Yes
L
L
L
H
No
Z
Powered off by
auto-powerdown feature
H
L
H
No
Z
(1)
H = high level, L = low level, X = irrelevant, Z = high impedance
2
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Copyright
© 2007–2011, Texas Instruments Incorporated
Product Folder Link(s): TRSF3223E


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