max232.pdf

(396 KB) Pobierz
MAX220-49 DS
19-4323; Rev 15; 1/06
+5V-Powered, Multichannel RS-232
Drivers/Receivers
General Description
The MAX220–MAX249 family of line drivers/receivers is
intended for all EIA/TIA-232E and V.28/V.24 communica-
tions interfaces, particularly applications where ±12V is
not available.
These parts are especially useful in battery-powered sys-
tems, since their low-power shutdown mode reduces
power dissipation to less than 5µW. The MAX225,
MAX233, MAX235, and MAX245/MAX246/MAX247 use
no external components and are recommended for appli-
cations where printed circuit board space is critical.
Next-Generation
Device Features
♦
For Low-Voltage, Integrated ESD Applications
MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246E: +3.0V to +5.5V, Low-Power, Up to
1Mbps, True RS-232 Transceivers Using Four
0.1µF External Capacitors (MAX3246E Available
in a UCSP™ Package)
♦
For Low-Cost Applications
MAX221E: ±15kV ESD-Protected, +5V, 1µA,
Single RS-232 Transceiver with AutoShutdown™
________________________Applications
Portable Computers
Low-Power Modems
Interface Translation
Battery-Powered RS-232 Systems
Multidrop RS-232 Networks
Ordering Information
PART
MAX220 CPE
MAX220CSE
MAX220CWE
TEMP RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 Wide SO
0°C to +70°C
0°C to +70°C
0°C to +70°C
MAX220C/D
0°C to +70°C
Dice*
MAX220EPE
MAX220ESE
MAX220EWE
-40°C to +85°C
16 Plastic DIP
16 Narrow SO
16 Wide SO
-40°C to +85°C
-40°C to +85°C
MAX220EJE
-40°C to +85°C
16 CERDIP
MAX220MJE
-55°C to +125°C
16 CERDIP
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
Selection Table
Power
No. of
Nominal
SHDN
Rx
Part
Supply
RS-232
No. of
Cap. Value & Three- Active in Data Rate
Number
(V)
Drivers/Rx Ext. Caps (µF)
State
SHDN
(kbps)
Features
MAX220
+5
2/2
4
0.047/0.33 No
—
120
Ultra-low-power, industry-standard pinout
MAX222
+5
2/2
4
0.1
Yes
—
200
Low-power shutdown
MAX223 (MAX213) +5
4/5
4
1.0 (0.1)
Yes
✔
120
MAX241 and receivers active in shutdown
MAX225
+5
5/5
0
—
Yes
✔
120
Available in SO
MAX230 (MAX200) +5
5/0
4
1.0 (0.1)
Yes
—
120
5 drivers with shutdown
MAX231 (MAX201) +5 and
2/2
2
1.0 (0.1)
No
—
120
Standard +5/+12V or battery supplies;
+7.5 to +13.2
same functions as MAX232
MAX232 (MAX202) +5
2/2
4
1.0 (0.1)
No
—
120 (64)
Industry standard
MAX232A
+5
2/2
4
0.1
No
—
200
Higher slew rate, small caps
MAX233 (MAX203) +5
2/2
0
—
No
—
120
No external caps
MAX233A
+5
2/2
0
—
No
—
200
No external caps, high slew rate
MAX234 (MAX204) +5
4/0
4
1.0 (0.1)
No
—
120
Replaces 1488
MAX235 (MAX205) +5
5/5
0
—
Yes
—
120
No external caps
MAX236 (MAX206) +5
4/3
4
1.0 (0.1)
Yes
—
120
Shutdown, three state
MAX237 (MAX207) +5
5/3
4
1.0 (0.1)
No
—
120
Complements IBM PC serial port
MAX238 (MAX208) +5
4/4
4
1.0 (0.1)
No
—
120
Replaces 1488 and 1489
MAX239 (MAX209) +5 and
3/5
2
1.0 (0.1)
No
—
120
Standard +5/+12V or battery supplies;
+7.5 to +13.2
single-package solution for IBM PC serial port
MAX240
+5
5/5
4
1.0
Yes
—
120
DIP or flatpack package
MAX241 (MAX211) +5
4/5
4
1.0 (0.1)
Yes
—
120
Complete IBM PC serial port
MAX242
+5
2/2
4
0.1
Yes
✔
200
Separate shutdown and enable
MAX243
+5
2/2
4
0.1
No
—
200
Open-line detection simplifies cabling
MAX244
+5
8/10
4
1.0
No
—
120
High slew rate
MAX245
+5
8/10
0
—
Yes
✔
120
High slew rate, int. caps, two shutdown modes
MAX246
+5
8/10
0
—
Yes
✔
120
High slew rate, int. caps, three shutdown modes
MAX247
+5
8/9
0
—
Yes
✔
120
High slew rate, int. caps, nine operating modes
MAX248
+5
8/8
4
1.0
Yes
✔
120
High slew rate, selective half-chip enables
MAX249
+5
6/10
4
1.0
Yes
✔
120
Available in quad flatpack package
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
454381151.012.png 454381151.013.png 454381151.014.png 454381151.015.png
 
454381151.001.png 454381151.002.png 454381151.003.png
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ABSOLUTE MAXIMUM RATINGS—MAX220/222/232A/233A/242/243
Supply Voltage (V CC ) ...............................................-0.3V to +6V
V+ (Note 1) ..................................................(V CC - 0.3V) to +14V
V- (Note 1) .............................................................+0.3V to +14V
Input Voltages
T IN ..............................................................-0.3V to (V CC - 0.3V)
R IN (Except MAX220) ........................................................±30V
R IN (MAX220).....................................................................±25V
T OUT (Except MAX220) (Note 2) .......................................±15V
T OUT (MAX220)...............................................................±13.2V
Output Voltages
T OUT ...................................................................................±15V
R OUT .........................................................-0.3V to (V CC + 0.3V)
Driver/Receiver Output Short Circuited to GND.........Continuous
Continuous Power Dissipation (T A = +70°C)
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)..842mW
18-Pin Plastic DIP (derate 11.11mW/°C above +70°C)..889mW
20-Pin Plastic DIP (derate 8.00mW/°C above +70°C) ..440mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) ...696mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW
18-Pin Wide SO (derate 9.52mW/°C above +70°C)......762mW
20-Pin Wide SO (derate 10.00mW/°C above +70°C)....800mW
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C).....800mW
18-Pin CERDIP (derate 10.53mW/°C above +70°C).....842mW
Operating Temperature Ranges
MAX2_ _AC_ _, MAX2_ _C_ _ .............................0°C to +70°C
MAX2_ _AE_ _, MAX2_ _E_ _ ..........................-40°C to +85°C
MAX2_ _AM_ _, MAX2_ _M_ _ .......................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) (Note 3) ...................+300°C
Note 1: For the MAX220, V+ and V- can have a maximum magnitude of 7V, but their absolute difference cannot exceed 13V.
Note 2: Input voltage measured with T OUT in high-impedance state, SHDN or V CC = 0V.
Note 3: Maximum reflow temperature for the MAX233A is +225°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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243
(V CC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, T A = T MIN to T MAX ‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RS-232 TRANSMITTERS
Output Voltage Swing
All transmitter outputs loaded with 3k Ω to GND
±5
±8
V
Input Logic Threshold Low
1.4
0.8
V
Input Logic Threshold High
All devices except MAX220
2
1.4
V
MAX220: V CC = 5.0V
2.4
All except MAX220, normal operation
5
40
Logic Pullup/lnput Current
SHDN = 0V, MAX222/MAX242, shutdown,
MAX220
±0.01
±1
µA
V CC = 5.5V, SHDN = 0V, V OUT = ±15V,
MAX222/MAX242
±0.01
±10
Output Leakage Current
µA
V OUT = ±15V
±0.01
±10
V CC = SHDN = 0V
MAX220, V OUT = ±12V
±25
Data Rate
200
116
kbps
Transmitter Output Resistance
V CC = V+ = V- = 0V, V OUT = ±2V
300
10M
Ω
Output Short-Circuit Current
V OUT = 0V
V OUT = 0V
±7
±22
mA
MAX220
±60
RS-232 RECEIVERS
RS-232 Input Voltage Operating Range
±30
V
MAX220
±25
RS-232 Input Threshold Low
V CC = 5V
All except MAX243 R2 IN
0.8
1.3
V
MAX243 R2 IN (Note 4)
-3
RS-232 Input Threshold High
V CC = 5V
All except MAX243 R2 IN
1.8
2.4
V
MAX243 R2 IN (Note 4)
-0.5
-0.1
2 _______________________________________________________________________________________
454381151.004.png
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(V CC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, T A = T MIN to T MAX ‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
All except MAX220/MAX243, V CC = 5V, no
hysteresis in SHDN
0.2
0.5
1.0
RS-232 Input Hysteresis
V
MAX220
0.3
MAX243
1
RS-232 Input Resistance
T A = +25°C (MAX220)
3
5
7
K
3
5
7
TTL/CMOS Output Voltage Low
I OUT = 3.2mA
0.2
0.4
V
I OUT = 1.6mA (MAX220)
0.4
TTL/CMOS Output Voltage High
I OUT = -1.0mA
3.5
V CC - 0.2
V
TTL/CMOS Output Short-Circuit Current
Sourcing V OUT = GND
-2
-10
mA
Shrinking V OUT = V CC
10
30
TTL/CMOS Output Leakage Current
SHDN = V CC or EN = V CC (SHDN = 0V for
MAX222), 0V ≤ V OUT ≤ V CC
±0.05
±10
µA
EN Input Threshold Low
MAX242
1.4
0.8
V
EN Input Threshold High
MAX242
2.0
1.4
V
Operating Supply Voltage
4.5
5.5
V
MAX220
0.5
2
No load
MAX222/MAX232A/MAX233A/
MAX242/MAX243
4
10
V CC Supply Current (SHDN = V CC ),
figures 5, 6, 11, 19
µA
MAX220
12
load both
inputs
Ω
MAX222/MAX232A/MAX233A/
MAX242/MAX243
15
T A = +25°C
0.1
10
Shutdown Supply Current
MAX222/
MAX242
T A = 0°C to +70°C
2
50
µA
T A = -40°C to +85°C
2
50
T A = -55°C to +125°C
35
100
SHDN Input Leakage Current
MAX222/MAX242
±1
µA
SHDN Threshold Low
MAX222/MAX242
1.4
0.8
V
SHDN Threshold High
MAX222/MAX242
2.0
1.4
V
C L = 50pF to
2500pF, R L = 3k Ω
to 7k Ω , V CC = 5V,
T A = +25°C,
measured from
+3V to -3V or -3V
MAX222/MAX232A/MAX233/
MAX242/MAX243
6
12
30
Transition Slew Rate
V/µs
MAX220
1.5
3
30.0
t PHLT
MAX222/MAX232A/MAX233/
MAX242/MAX243
1.3
3.5
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation), Figure 1
MAX220
4
10
µs
MAX222/MAX232A/MAX233/
MAX242/MAX243
1.5
3.5
t PLHT
MAX220
5
10
Note 4: MAX243 R2 OUT is guaranteed to be low when R2 IN is
≥
0V or is floating.
_______________________________________________________________________________________ 3
Ω
3k
454381151.005.png
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(V CC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, T A = T MIN to T MAX ‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
t PHLR
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.5
1
Receiver Propagation Delay RS-232 to
TLL (Normal Operation), Figure 2
MAX220
0.6
3
µs
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.6
1
t PLHR
MAX220
0.8
3
t PHLS
MAX242
0.5
10
Receiver Propagation Delay RS-232 to
TLL (Shutdown), Figure 2
µs
t PHLS
MAX242
2.5
10
Receiver-Output Enable Time, Figure 3
t ER
MAX242
125
500
ns
Receiver-Output Disable Time, Figure 3
t DR
MAX242
160
500
ns
Transmitter-Output Enable Time (SHDN
Goes High), Figure 4
t ET
MAX222/MAX242, 0.1µF
caps (includes charge-pump
start-up)
250
µs
Transmitter-Output Disable Time (SHDN
Goes Low), Figure 4
t DT
MAX222/MAX242,
0.1µF caps
600
ns
MAX222/MAX232A/MAX233/
MAX242/MAX243
300
Transmitter + to - Propagation Delay
Difference (Normal Operation)
t PHLT - t PLHT
ns
MAX220
2000
Receiver + to - Propagation Delay
Difference (Normal Operation)
t PHLR - t PLHR
MAX222/MAX232A/MAX233/
MAX242/MAX243
100
ns
MAX220
225
__________________________________________Typical Operating Characteristics
MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243
OUTPUT VOLTAGE vs. LOAD CURRENT
AVAILABLE OUTPUT CURRENT
vs. DATA RATE
MAX222/MAX242
ON-TIME EXITING SHUTDOWN
10
8
11
+10V
1
µ
F
V+
OUTPUT LOAD CURRENT
FLOWS FROM V+ TO V-
1 µ F CAPS
10
EITHER V+ OR V- LOADED
V CC = ±5V
NO LOAD ON
TRANSMITTER OUTPUTS
(EXCEPT MAX220, MAX233A)
V- LOADED, NO LOAD ON V+
V+
6
4
2
0.1
µ
F CAPS
ALL CAPS
1
+5V
0.1
µ
F
9
µ
F
+5V
SHDN
V CC = +5.25V
0V
8
0
ALL CAPS
0.1 µ F
0V
-2
7
V CC = +4.75V
0.1
µ
F
1
µ
F
1 µ F CAPS
-4
-6
-8
6
5
0.1 µ F CAPS
V+ LOADED, NO LOAD ON V-
V-
V-
-10
4
-10V
0
5
10
15
20
25
0
10
20
30
40
50
60
500
µ
s/div
4 _______________________________________________________________________________________
LOAD CURRENT (mA)
DATA RATE (kbits/sec)
454381151.006.png 454381151.007.png 454381151.008.png 454381151.009.png 454381151.010.png
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ABSOLUTE MAXIMUM RATINGS—MAX223/MAX230–MAX241
V CC ...........................................................................-0.3V to +6V
V+ ................................................................(V CC - 0.3V) to +14V
V- ............................................................................+0.3V to -14V
Input Voltages
T IN ............................................................-0.3V to (V CC + 0.3V)
R IN ......................................................................................±30V
Output Voltages
T OUT ...................................................(V+ + 0.3V) to (V- - 0.3V)
R OUT .........................................................-0.3V to (V CC + 0.3V)
Short-Circuit Duration, T OUT ......................................Continuous
Continuous Power Dissipation (T A = +70°C)
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW
20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW
24-Pin Narrow Plastic DIP
(derate 13.33mW/°C above +70°C) ..........1.07W
24-Pin Plastic DIP (derate 9.09mW/°C above +70°C)......500mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C) .........762mW
20-Pin Wide SO (derate 10 00mW/°C above +70°C).......800mW
24-Pin Wide SO (derate 11.76mW/°C above +70°C).......941mW
28-Pin Wide SO (derate 12.50mW/°C above +70°C) .............1W
44-Pin Plastic FP (derate 11.11mW/°C above +70°C) .....889mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C) ..........727mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C) ........800mW
20-Pin CERDIP (derate 11.11mW/°C above +70°C) ........889mW
24-Pin Narrow CERDIP
(derate 12.50mW/°C above +70°C) ..............1W
24-Pin Sidebraze (derate 20.0mW/°C above +70°C)..........1.6W
28-Pin SSOP (derate 9.52mW/°C above +70°C).............762mW
Operating Temperature Ranges
MAX2 _ _ C _ _......................................................0°C to +70°C
MAX2 _ _ E _ _ ...................................................-40°C to +85°C
MAX2 _ _ M _ _ ...............................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) (Note 4) ...................+300°C
Note 4: Maximum reflow temperature for the MAX233/MAX235 is +225°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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX223/MAX230–MAX241
(MAX223/230/232/234/236/237/238/240/241, V CC = +5V ±10; MAX233/MAX235, V CC = 5V ±5%‚ C1–C4 = 1.0µF; MAX231/MAX239,
V CC = 5V ±10%; V+ = 7.5V to 13.2V; T A = T MIN to T MAX ; unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output Voltage Swing
All transmitter outputs loaded with 3k
Ω
to ground
±5.0
±7.3
V
MAX232/233
5
10
No load,
T A = +25°C
V CC Power-Supply Current
MAX223/230/234–238/240/241
7
15
mA
MAX231/239
0.4
1
V+ Power-Supply Current
MAX231
1.8
5
mA
MAX239
5
15
Shutdown Supply Current
T A = +25°C
MAX223
15
50
µA
MAX230/235/236/240/241
1
10
Input Logic Threshold Low T IN ; EN, SHDN (MAX233); EN, SHDN (MAX230/235–241)
0.8
V
T IN
2.0
Input Logic Threshold High
EN, SHDN (MAX223);
EN, SHDN (MAX230/235/236/240/241)
2.4
V
Logic Pull-Up Current
T IN =0V
1.5
200
µA
Receiver Input Voltage
Operating Range
-30
+30
V
_______________________________________________________________________________________ 5
454381151.011.png

Plik z chomika:

Inne pliki z tego folderu:

Inne foldery tego chomika:

Zgłoś jeśli naruszono regulamin