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MAX233 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX233
Description  5V-Powered, Multichannel RS-232 Drivers/Receivers
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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 4 page
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+5V-Powered, Multichannel RS-232
Drivers/Receivers
4
_______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243
10
8
-10
05
15
25
OUTPUT VOLTAGE vs. LOAD CURRENT
-4
-6
-8
-2
6
4
2
LOAD CURRENT (mA)
10
0
20
0.1
µF
EITHER V+ OR V- LOADED
VCC = ±5V
NO LOAD ON
TRANSMITTER OUTPUTS
(EXCEPT MAX220, MAX233A)
V- LOADED, NO LOAD ON V+
V+ LOADED, NO LOAD ON V-
1
µF
1
µF
0.1
µF
11
10
4
010
40
60
AVAILABLE OUTPUT CURRENT
vs. DATA RATE
6
5
7
9
8
DATA RATE (kbits/sec)
20
30
50
OUTPUT LOAD CURRENT
FLOWS FROM V+ TO V-
VCC = +5.25V
ALL CAPS
1
µF
ALL CAPS
0.1
µF
VCC = +4.75V
+10V
-10V
MAX222/MAX242
ON-TIME EXITING SHUTDOWN
+5V
+5V
0V
0V
500
µs/div
1
µF CAPS
V+
V+
V-
V-
SHDN
0.1
µF CAPS
1
µF CAPS
0.1
µF CAPS
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(VCC = +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, TA = TMIN to TMAX‚ unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.5
1
tPHLR
MAX220
0.6
3
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.6
1
Receiver Propagation Delay RS-232 to
TLL (Normal Operation), Figure 2
tPLHR
MAX220
0.8
3
µs
tPHLS
MAX242
0.5
10
Receiver Propagation Delay RS-232 to
TLL (Shutdown), Figure 2
tPHLS
MAX242
2.5
10
µs
Receiver-Output Enable Time, Figure 3
tER
MAX242
125
500
ns
Receiver-Output Disable Time, Figure 3
tDR
MAX242
160
500
ns
Transmitter-Output Enable Time (SHDN
Goes High), Figure 4
tET
MAX222/MAX242, 0.1µF
caps (includes charge-pump
start-up)
250
µs
Transmitter-Output Disable Time (SHDN
Goes Low), Figure 4
tDT
MAX222/MAX242,
0.1µF caps
600
ns
MAX222/MAX232A/MAX233/
MAX242/MAX243
300
Transmitter + to - Propagation Delay
Difference (Normal Operation)
tPHLT - tPLHT
MAX220
2000
ns
MAX222/MAX232A/MAX233/
MAX242/MAX243
100
Receiver + to - Propagation Delay
Difference (Normal Operation)
tPHLR - tPLHR
MAX220
225
ns




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