MAX3223
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH 15 kV ESD PROTECTION
SLLS409K - JANUARY 2000 - REVISED MARCH 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
RS-232 Bus-Pin ESD Protection Exceeds
15 kV Using Human-Body Model (HBM)
D
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
D
Operates With 3-V to 5.5-V V
CC
Supply
D
Operates Up To 250 kbit/s
D
Two Drivers and Two Receivers
D
Low Standby Current . . . 1
A Typical
D
External Capacitors . . . 4
0.1
F
D
Accepts 5-V Logic Input With 3.3-V Supply
D
Alternative High-Speed Pin-Compatible
Device (1 Mbit/s)
- SNx5C3223
D
Applications
- Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
description/ordering information
The MAX3223 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 data signaling rates up to 250 kbit/s and a maximum of 30-V/
s
driver output slew rate.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC (DW)
Tube of 25
MAX3223CDW
MAX3223C
SOIC (DW)
Reel of 2000
MAX3223CDWR
MAX3223C
-0
C to 70
C
SSOP (DB)
Tube of 70
MAX3223CDB
MA3223C
-0
C to 70
C
SSOP (DB)
Reel of 2000
MAX3223CDBR
MA3223C
TSSOP (PW)
Tube of 70
MAX3223CPW
MA3223C
TSSOP (PW)
Reel of 2000
MAX3223CPWR
MA3223C
SOIC (DW)
Tube of 25
MAX3223IDW
MAX3223I
SOIC (DW)
Reel of 2000
MAX3223IDWR
MAX3223I
-40
C to 85
C
SSOP (DB)
Tube of 70
MAX3223IDB
MB3223I
-40
C to 85
C
SSOP (DB)
Reel of 2000
MAX3223IDBR
MB3223I
TSSOP (PW)
Tube of 70
MAX3223IPW
MB3223I
TSSOP (PW)
Reel of 2000
MAX3223IPWR
MB3223I
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2004, Texas Instruments Incorporated
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.
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
V
CC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
MAX3223
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH 15 kV ESD PROTECTION
SLLS409K - JANUARY 2000 - REVISED MARCH 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
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
A.
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
s. INVALID is low (invalid data) if the receiver input voltage is between -0.3 V and 0.3 V for more than
30
s. Refer to Figure 4 for receiver input levels.
Function Tables
EACH DRIVER
INPUTS
OUTPUT
DIN
FORCEON
FORCEOFF
VALID RIN
RS-232 LEVEL
OUTPUT
DOUT
DRIVER STATUS
X
X
L
X
Z
Powered off
L
H
H
X
H
Normal operation with
H
H
H
X
L
Normal operation with
auto-powerdown disabled
L
L
H
Yes
H
Normal operation with
H
L
H
Yes
L
Normal operation with
auto-powerdown enabled
L
L
H
No
Z
Powered off by
H
L
H
No
Z
Powered off by
auto-powerdown feature
H = high level, L = low level, X = irrelevant, Z = high impedance
EACH RECEIVER
INPUTS
OUTPUT
RIN
EN
VALID RIN
RS-232 LEVEL
OUTPUT
ROUT
L
L
X
H
H
L
X
L
X
H
X
Z
Open
L
No
H
H = high level, L = low level, X = irrelevant,
Z
=
high impedance (off), Open = input
disconnected or connected driver off
MAX3223
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH 15 kV ESD PROTECTION
SLLS409K - JANUARY 2000 - REVISED MARCH 2004
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
DIN2
DOUT2
Auto-powerdown
RIN1
INVALID
ROUT1
DIN1
DOUT1
RIN2
ROUT2
EN
FORCEON
FORCEOFF
13
12
20
14
1
15
10
17
8
11
16
9
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
(see Note 1)
-0.3 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positive output supply voltage range, V+ (see Note 1)
-0.3 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Negative output supply voltage range, V- (see Note 1)
0.3 V to -7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply voltage difference, V+
-
V- (see Note 1)
13 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
: Driver, FORCEOFF, FORCEON, EN
-0.3 V to 6 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver
-25 V to 25 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, V
O
: Driver
-13.2 V to 13.2 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver, INVALID
-0.3 V to V
CC
+ 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Notes 2 and 3): DB package
70
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package
58
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
83
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, T
J
150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
-65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. All voltages are with respect to network GND.
2. Maximum power dissipation is a function of TJ(max),
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TA)/
JA. Operating at the absolute maximum TJ of 150
C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
MAX3223
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH 15 kV ESD PROTECTION
SLLS409K - JANUARY 2000 - REVISED MARCH 2004
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 4 and Figure 6)
MIN
NOM
MAX
UNIT
Supply voltage
VCC = 3.3 V
3
3.3
3.6
V
Supply voltage
VCC = 5 V
4.5
5
5.5
V
VIH
Driver and control high-level input voltage
DIN, EN, FORCEOFF,
VCC = 3.3 V
2
V
VIH
Driver and control high-level input voltage
DIN, EN, FORCEOFF,
FORCEON
VCC = 5 V
2.4
V
VIL
Driver and control low-level input voltage
DIN, EN, FORCEOFF, FORCEON
0.8
V
VI
Driver and control input voltage
DIN, EN, FORCEOFF, FORCEON
0
5.5
V
VI
Receiver input voltage
-25
25
V
TA
Operating free-air temperature
MAX3223C
0
70
C
TA
Operating free-air temperature
MAX3223I
-40
85
C
NOTE 4: Test conditions are C1-C4 = 0.1
F at VCC = 3.3 V
0.3 V; C1 = 0.047
F, C2-C4 = 0.33
F at VCC = 5 V
0.5 V.
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
II
Input leakage
current
EN, FORCEOFF,
FORCEON
0.01
1
A
Auto-powerdown
disabled
VCC = 3.3 V or 5 V,
No load,
FORCEOFF and
FORCEON at VCC
0.3
1
mA
ICC
Supply current
Powered off
VCC = 3.3 V or 5 V,
TA = 25
C
No load, FORCEOFF at GND
1
10
ICC
Supply current
Auto-powerdown
enabled
TA = 25
C
No load, FORCEOFF at VCC,
FORCEON at GND,
All RIN are open or grounded
1
10
A
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25
C.
NOTE 4: Test conditions are C1-C4 = 0.1
F at VCC = 3.3 V
0.3 V; C1 = 0.047
F, C2-C4 = 0.33
F at VCC = 5 V
0.5 V.
MAX3223
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH 15 kV ESD PROTECTION
SLLS409K - JANUARY 2000 - REVISED MARCH 2004
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOH
High-level output voltage
DOUT at RL = 3 k
to GND
5
5.4
V
VOL
Low-level output voltage
DOUT at RL = 3 k
to GND
-5
-5.4
V
IIH
High-level input current
VI = VCC
0.01
1
A
IIL
Low-level input current
VI at GND
0.01
1
A
IOS
Short-circuit output current
VCC = 3.6 V,
VO = 0 V
35
60
mA
IOS
Short-circuit output current
VCC = 5.5 V,
VO = 0 V
35
60
mA
ro
Output resistance
VCC, V+, and V- = 0 V,
VO =
2 V
300
10M
Ioff
Output leakage current
FORCEOFF = GND
VO =
12 V,
VCC = 3 V to 3.6 V
25
A
Ioff
Output leakage current
FORCEOFF = GND
VO =
10 V,
VCC = 4.5 V to 5.5 V
25
A
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25
C.
Short-circuit durations should be controlled to prevent exceeding the device absolute power-dissipation ratings, and not more than one output
should be shorted at a time.
NOTE 4: Test conditions are C1-C4 = 0.1
F at VCC = 3.3 V
0.3 V; C1 = 0.047
F, C2-C4 = 0.33
F at VCC = 5 V
0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 6)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Maximum data rate
CL = 1000 pF,
One DOUT switching,
RL = 3 k
,
See Figure 1
250
kbit/s
tsk(p)
Pulse skew
CL = 150 pF to 2500 pF,
See Figure 2
RL = 3 k
to 7 k
,
100
ns
SR(tr)
Slew rate, transition region
VCC = 3.3 V
,
CL = 150 pF to 1000 pF
6
30
V/
s
SR(tr)
Slew rate, transition region
(See Figure 1)
VCC = 3.3 V
,
RL = 3 k
to 7 k
CL = 150 pF to 2500 pF
4
30
V/
s
All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25
C.
Pulse skew is defined as |tPLH - tPHL| of each channel of the same device.
NOTE 4: Test conditions are C1-C4 = 0.1
F at VCC = 3.3 V
0.3 V; C1 = 0.047
F, C2-C4 = 0.33
F at VCC = 5 V
0.5 V.
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