MAXIM MAX3223CPW

MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
D
D
D
D
D
D
D
D
D
D
Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards
Operates With 3-V to 5.5-V VCC Supply
Operates up to 250 kbit/s
Low Standby Current . . . 1 µA Typical
External Capacitors . . . 4 × 0.1 µF
Accepts 5-V Logic Input With 3.3-V Supply
Designed to Be Interchangeable With
Maxim MAX3223
RS-232 Bus-Pin ESD Protection Exceeds
±15 kV Using Human-Body Model (HBM)
Applications
– Battery-Powered Systems, PDAs,
Notebooks, Laptops, Palmtop PCs, and
Hand-Held Equipment
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
DB, DW, OR PW PACKAGE
(TOP VIEW)
EN
C1+
V+
C1–
C2+
C2–
V–
DOUT2
RIN2
ROUT2
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
FORCEOFF
VCC
GND
DOUT1
RIN1
ROUT1
FORCEON
DIN1
DIN2
INVALID
description
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/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 µA.
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.
The MAX3223C is characterized for operation from 0°C to 70°C. The MAX3223I is characterized for operation
from –40°C to 85°C.
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.
Copyright  2001, Texas Instruments Incorporated
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.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
AVAILABLE OPTIONS
PACKAGED DEVICES
SHRINK
SMALL OUTLINE
(DB)
SMALL OUTLINE
(DW)
THIN SHRINK
SMALL OUTLINE
(PW)
0°C to 70°C
MAX3223CDB
MAX3223CDW
MAX3223CPW
–40°C to 85°C
MAX3223IDB
MAX3223IDW
MAX3223IPW
TA
The DB, DW, and PW packages are available taped and reeled. Add the suffix R to
device type (e.g., MAX3223CDBR).
Function Tables
EACH DRIVER
INPUTS
DIN
FORCEON
FORCEOFF
VALID RIN
RS-232 LEVEL
OUTPUT
DOUT
DRIVER STATUS
X
X
L
X
Z
Powered off
L
H
H
X
H
H
H
H
X
L
Normal operation with
auto-powerdown disabled
L
L
H
Yes
H
H
L
H
Yes
L
L
L
H
No
Z
H
L
H
No
Z
Normal operation with
auto-powerdown enabled
Powered off by
y
auto-powerdown feature
H = high level, L = low level, X = irrelevant, Z = high impedance
EACH RECEIVER
INPUTS
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
2
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MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
logic diagram (positive logic)
17
13
DIN1
DOUT1
12
8
DIN2
FORCEOFF
DOUT2
20
14
Auto-powerdown
11
INVALID
FORCEON
1
EN
ROUT1
ROUT2
15
16
10
9
RIN1
RIN2
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (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, VI: Driver, FORCEOFF, FORCEON, EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 6 V
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25 V to 25 V
Output voltage range, VO: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –13.2 V to 13.2 V
Receiver, INVALID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to VCC + 0.3 V
Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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. The package thermal impedance is calculated in accordance with JESD 51-7.
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3
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
recommended operating conditions (see Note 3 and Figure 6)
VCC = 3.3 V
VCC = 5 V
Supply voltage
VCC = 3.3 V
VCC = 5 V
VIH
Driver and control high-level
high level input voltage
DIN,, EN,, FORCEOFF,,
FORCEON
VIL
Driver and control low-level input voltage
DIN, EN, FORCEOFF, FORCEON
Driver and control input voltage
DIN, EN, FORCEOFF, FORCEON
VI
TA
Receiver input voltage
MAX3223C
Operating free-air
free air temperature
MAX3223I
MIN
NOM
MAX
3
3.3
3.6
4.5
5
5.5
2
UNIT
V
V
2.4
0.8
0
5.5
–25
25
0
70
–40
85
V
V
°C
NOTE 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF 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 3 and Figure 6)
PARAMETER
II
ICC
Input leakage current
Supply
Su
ly current
TEST CONDITIONS
EN, FORCEOFF, FORCEON
MIN
TYP†
MAX
±0.01
±1
µA
0.3
1
mA
Auto-powerdown disabled
No load,
FORCEOFF, FORCEON at VCC
Powered off
No load, FORCEOFF at GND
1
10
Auto-powerdown enabled
No load, FORCEOFF at VCC,
FORCEON at GND,
All RIN are open or grounded
1
10
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
NOTE 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
4
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UNIT
µA
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
DRIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 3 and Figure 6)
MIN
TYP†
VOH
VOL
High-level output voltage
DOUT at RL = 3 kΩ to GND
5
5.4
Low-level output voltage
DOUT at RL = 3 kΩ to GND
–5
IIH
IIL
High-level input current
VI = VCC
VI at GND
PARAMETER
Low-level input current
TEST CONDITIONS
IOS
Sh t i it output
Short-circuit
t t currentt‡
ro
Output resistance
VCC, V+, and V– = 0 V,
VO = 0 V
VO = 0 V
VO = ±2 V
300
UNIT
V
–5.4
±0.01
VCC = 3.6 V,
VCC = 5.5 V,
MAX
V
±1
µA
±0.01
±1
µA
±35
±60
±35
±60
mA
Ω
10M
Ioff
Output leakage current
FORCEOFF = GND,
VO = ±12 V,
VCC = 0 to 5.5 V
±25
µA
† 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 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF 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 3 and Figure 6)
PARAMETER
TEST CONDITIONS
MIN
TYP†
150
250
kbit/s
100
ns
MAX
Maximum data rate
CL = 1000 pF,
One DOUT switching,
RL = 3 kΩ,
See Figure 1
tsk(p)
Pulse skew§
CL = 150 pF to 2500 pF,
See Figure 2
RL = 3 kΩ to 7 kΩ,
SR(tr)
Slew rate, transition region
g
(See Figure 1)
VCC = 3.3 V,
RL = 3 kΩ to 7 kΩ
CL = 150 pF to 1000 pF
6
30
CL = 150 pF to 2500 pF
4
30
UNIT
V/µs
† 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 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 3 and Figure 6)
PARAMETER
VOH
VOL
TEST CONDITIONS
High-level output voltage
IOH = –1 mA
IOL = 1.6 mA
Low-level output voltage
VIT
IT+
Positive going input threshold voltage
Positive-going
VCC = 3.3 V
VCC = 5 V
VIT
IT–
Negative going input threshold voltage
Negative-going
VCC = 3.3 V
VCC = 5 V
Vhys
Ioff
Input hysteresis (VIT+ – VIT–)
TYP†
MIN
VCC–0.6
MAX
VCC–0.1
V
0.4
1.6
2.4
1.9
2.4
0.6
1.1
0.8
1.4
±0.05
EN = VCC
ri
Input resistance
VI = ±3 V to ±25 V
3
5
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
NOTE 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
V
V
V
0.5
Output leakage current
UNIT
V
±10
µA
7
kΩ
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 3)
PARAMETER
TEST CONDITIONS
MIN
TYP†
UNIT
Propagation delay time, low- to high-level output
CL= 150 pF,
See Figure 3
150
ns
Propagation delay time, high- to low-level output
CL= 150 pF,
See Figure 3
150
ns
ten
Output enable time
CL= 150 pF,
See Figure 4
RL = 3 kΩ,
200
ns
tdis
Output disable time
CL= 150 pF,
See Figure 4
RL = 3 kΩ,
200
ns
tsk(p)
Pulse skew‡
See Figure 3
50
† 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 3: Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
6
MAX
tPLH
tPHL
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
ns
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
AUTO-POWERDOWN SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 5)
PARAMETER
TEST CONDITIONS
MIN
VT+(valid)
Receiver input threshold for
INVALID high-level output voltage
FORCEON = GND,
FORCEOFF = VCC
VT–(valid)
Receiver input threshold for
INVALID high-level output voltage
FORCEON = GND,
FORCEOFF = VCC
–2.7
VT(invalid)
Receiver input threshold for
INVALID low-level output voltage
FORCEON = GND,
FORCEOFF = VCC
–0.3
VOH
INVALID high-level output voltage
IOH = –1 mA,
FORCEOFF = VCC
FORCEON = GND,
VOL
INVALID low-level output voltage
IOL = 1.6 mA,
FORCEOFF = VCC
FORCEON = GND,
MAX
UNIT
2.7
V
V
0.3
V
VCC–0.6
V
0.4
V
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 5)
TYP†
PARAMETER
tvalid
tinvalid
µs
30
µs
100
µs
Propagation delay time, high- to low-level output
ten
Supply enable time
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
UNIT
1
Propagation delay time, low- to high-level output
PARAMETER MEASUREMENT INFORMATION
3V
Input
Generator
(see Note B)
1.5 V
RS-232
Output
50 Ω
RL
1.5 V
0V
CL
(see Note A)
tTHL
3V
FORCEOFF
Output
tTLH
3V
–3 V
TEST CIRCUIT
SR(tr)
+t
3V
–3 V
VOH
VOL
VOLTAGE WAVEFORMS
THL
6 V
or t
TLH
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 1. Driver Slew Rate
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7
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
PARAMETER MEASUREMENT INFORMATION
3V
Generator
(see Note B)
Input
RS-232
Output
50 Ω
0V
tPHL
CL
(see Note A)
RL
3V
FORCEOFF
1.5 V
1.5 V
tPLH
VOH
50%
50%
Output
VOL
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 2. Driver Pulse Skew
EN
0V
3V
Input
1.5 V
1.5 V
–3 V
Output
Generator
(see Note B)
50 Ω
tPHL
CL
(see Note A)
tPLH
VOH
50%
Output
0V
FORCEOFF
50%
VOL
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 3. Receiver Propagation Delay Times
3V
FORCEON
3 V or 0 V
VCC
S1
GND
1.5 V
–3 V
tPHZ
(S1 at GND)
Output
CL
(see Note A)
EN
Generator
(see Note B)
1.5 V
tPHZ
(S1 at GND)
RL
3 V or 0 V
Input
VOH
Output
50%
0.3 V
tPLZ
(S1 at VCC)
0.3 V
50 Ω
Output
50%
VOL
tPZL
(S1 at VCC)
TEST CIRCUIT
VOLTAGE WAVEFORMS
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 4. Receiver Enable and Disable Times
8
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MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
PARAMETER MEASUREMENT INFORMATION
2.7 V
2.7 V
0V
Receiver
Input
0V
50 Ω
tvalid
50% VCC
50% VCC
0V
ten
INVALID
CL = 30 pF
(see Note A)
≈V+
V+
0.3 V
VCC
0V
0.3 V
Supply
Voltages
FORCEOFF
FORCEON
tinvalid
DIN
–3 V
VCC
INVALID
Output
Autopowerdown
–2.7 V
–2.7 V
ROUT
Generator
(see Note B)
3V
DOUT
≈V–
V–
TEST CIRCUIT
VOLTAGE WAVEFORMS
Valid RS-232 Level, INVALID High
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
2.7 V
Indeterminate
0.3 V
0V
If Signal Remains Within This Region
for More Than 30 µs, INVALID Is Low†
–0.3 V
Indeterminate
–2.7 V
Valid RS-232 Level, INVALID High
† Auto-powerdown disables drivers and reduces supply
current to 1 µA.
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 5 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.
Figure 5. INVALID Propagation Delay Times and Supply Enabling Time
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9
MAX3223
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS409C – JANUARY 2000 – REVISED DECEMBER 2001
APPLICATION INFORMATION
2
+
C1
–
3
C3 †
+
20
Autopowerdown
1
EN
VCC
C1+
V+
GND
FORCEOFF
19
18
+ CBYPASS
– = 0.1µF
–
4
5
17
C1–
16
C2+
DOUT1
RIN1
+
C2
–
6
15
C2–
ROUT1
5 kΩ
7
C4
–
14
V–
FORCEON
+
DOUT2
RIN2
ROUT2
8
13
9
12
10
11
DIN1
DIN2
INVALID
5 kΩ
† C3 can be connected to VCC or GND.
NOTE A: Resistor values shown are nominal.
VCC vs CAPACITOR VALUES
VCC
C1
C2, C3, C4
3.3 V ± 0.3 V
5 V ± 0.5 V
3 V to 5.5 V
0.1 µF
0.047 µF
0.1 µF
0.1 µF
0.33 µF
0.47 µF
Figure 6. Typical Operating Circuit and Capacitor Values
10
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accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
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Copyright  2001, Texas Instruments Incorporated