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SN65C3223EDWR Datasheet(PDF) 1 Page - Texas Instruments

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Part # SN65C3223EDWR
Description  3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS WITH 짹15-kV ESD PROTECTION
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN65C3223EDWR Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
APPLICATIONS
DESCRIPTION/ORDERING
DB, DW, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
EN
C1+
V+
C1−
C2+
C2−
V−
DOUT2
RIN2
ROUT2
FORCEOFF
VCC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
NC − No internal connection
RHL PACKAGE
(TOP VIEW)
1
24
12
13
2
3
4
5
6
7
8
9
10
11
23
22
21
20
19
18
17
16
15
14
VCC
NC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
NC
DIN2
C1+
NC
V+
C1–
C2+
C2–
V–
DOUT2
NC
RIN2
Flexible control options for power management are available when the serial port is inactive. The
SN65C3223E
,, SN75C3223E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS
WITH
±15-kV ESD PROTECTION
SLLS727A – MAY 2006 – REVISED JULY 2006
ESD Protection for RS-232 Bus Pins
±15-kV Human-Body Model (HBM)
±8-kV IEC 61000-4-2, Contact Discharge
±15-kV IEC 61000-4-2, Air-Gap Discharge
Meet or Exceed the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operate With 3-V to 5.5-V VCC Supply
Operate up to 1000 kbit/s
Two Drivers and Two Receivers
Low Standby Current . . . 1
µA Typ
External Capacitors . . . 4
× 0.1 µF
Accepts 5-V Logic Input With 3.3-V Supply
Battery-Powered Systems
PDAs
Notebooks
Laptops
Palmtop PCs
Hand-Held Equipment
INFORMATION
The SN65C3223E and SN75C3223E consist of two
line
drivers,
two
line
receivers,
and
a
dual
charge-pump circuit with
±15-kV ESD protection pin
to pin (serial-port connection pins, including GND).
These
devices
meet
the
requirements
of
TIA/EIA-232-F and provide the electrical interface
between an asynchronous communication controller
and the serial-port connector. The charge pump and
four small external capacitors allow operation from a
single 3-V to 5.5-V supply. The devices operate at
typical data signaling rates up to 1000 kbit/s.
auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of
operation, if the devices do 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 devices are activated automatically 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.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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