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MAX3223ECDB

Description
DUAL LINE TRANSCEIVER, PDSO20
Categorysemiconductor    Analog mixed-signal IC   
File Size655KB,23 Pages
ManufacturerTAOS INC (ams)
Websitehttp://www.taosinc.com/
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MAX3223ECDB Overview

DUAL LINE TRANSCEIVER, PDSO20

MAX3223ECDB Parametric

Parameter NameAttribute value
Number of functions2
Number of terminals20
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Maximum supply voltage 13.6 V
Minimum supply voltage 13 V
Rated supply voltage 13.3 V
Processing package descriptionGreen, SSOP-20
Lead-freeYes
EU RoHS regulationsYes
China RoHS regulationsYes
stateACTIVE
packaging shapeRectangle
Package SizeSMALL OUTLINE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.6500 mm
terminal coatingNickel Palladium
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelCOMMERCIAL
Interface Typeline transceiver
Interface standardsEIA-232-F; TIA-232-F; V.28
Number of drive digits2
Input propertiesSCHMITT trigger
Number of receiver bits2
MAX3223E
www.ti.com..........................................................................................................................................
SLLS707A – JANUARY 2006 – REVISED SEPTEMBER 2009
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV ESD PROTECTION
Check for Samples:
MAX3223E
1
FEATURES
ESD Protection for RS-232 Bus Pins
– ±15-kV Human-Body Model (HBM)
– ±8-kV IEC61000-4-2, Contact Discharge
– ±15-kV IEC61000-4-2, Air-Gap Discharge
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V V
CC
Supply
Operates up to 500 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
Alternative High-Speed Pin-Compatible Device
(1 Mbit/s) for SNx5C3223E
DB, DW, OR PW PACKAGE
(TOP VIEW)
EN
C1+
V+
C1−
C2+
C2−
V−
DOUT2
RIN2
ROUT2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
FORCEOFF
V
CC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
APPLICATIONS
Battery-Powered Systems
PDAs
Notebooks
Laptops
Palmtop PCs
Hand-Held Equipment
DESCRIPTION/ORDERING INFORMATION
The MAX3223E consists 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). The device meets the requirements of
TIA/EIA-232-F and provides 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 device operates at typical data signaling rates up to 500 kbit/s and a maximum of 30-V/μs
driver output slew rate.
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 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.
1
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2009, Texas Instruments Incorporated
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