MAX231 Maxim, MAX231 Datasheet - Page 4

• Manufacturer Part Number: MAX231
• Description: +5V-Powered / Multichannel RS-232 Drivers/Receivers
• Manufacturer: Maxim

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