MAX223D View Datasheet(PDF) - Maxim Integrated
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Description
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MAX223D Datasheet PDF : 36 Pages
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+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX225/MAX244–MAX249 (continued)
(MAX225, VCC = 5.0V ±5%; MAX244–MAX249, VCC = +5.0V ±10%, external capacitors C1–C4 = 1µF; TA = TMIN to TMAX; unless oth-
erwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
POWER SUPPLY AND CONTROL LOGIC
Operating Supply Voltage
MAX225
MAX244–MAX249
4.75
5.25
V
4.5
5.5
VCC Supply Current
(Normal Operation)
No load
3kΩ loads on
all outputs
MAX225
MAX244–MAX249
MAX225
MAX244–MAX249
10
20
11
30
mA
40
57
Shutdown Supply Current
TA = +25°C
TA = TMIN to TMAX
Leakage current
8
25
µA
50
±1
µA
Control Input
Threshold low
Threshold high
1.4
0.8
V
2.4
1.4
AC CHARACTERISTICS
Transition Slew Rate
CL = 50pF to 2500pF, RL = 3kΩ to 7kΩ, VCC = 5V,
TA = +25°C, measured from +3V to -3V or -3V to +3V
5
10
30 V/µs
Transmitter Propagation Delay
TLL to RS-232 (Normal Operation),
Figure 1
tPHLT
tPLHT
1.3
3.5
µs
1.5
3.5
Receiver Propagation Delay
TLL to RS-232 (Normal Operation),
Figure 2
tPHLR
tPLHR
0.6
1.5
µs
0.6
1.5
Receiver Propagation Delay
TLL to RS-232 (Low-Power Mode),
Figure 2
tPHLS
tPLHS
Transmitter + to - Propagation
Delay Difference (Normal Operation)
tPHLT - tPLHT
Receiver + to - Propagation
Delay Difference (Normal Operation)
tPHLR - tPLHR
Receiver-Output Enable Time, Figure 3 tER
Receiver-Output Disable Time, Figure 3 tDR
Transmitter Enable Time
tET
Transmitter Disable Time, Figure 4 tDT
MAX246–MAX249
(excludes charge-pump startup)
MAX225/MAX245–MAX249
(includes charge-pump startup)
0.6
10
µs
3.0
10
350
ns
350
ns
100
500
ns
100
500
ns
5
µs
10
ms
100
ns
Note 7: The 300Ω minimum specification complies with EIA/TIA-232E, but the actual resistance when in shutdown mode or VCC =
0V is 10MΩ as is implied by the leakage specification.
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