MAX212EAG 데이터 시트보기 (PDF) - Maxim Integrated
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MAX212EAG Datasheet PDF : 8 Pages
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+3V-Powered, Low-Power,
True RS-232 Transceiver
TIMING CHARACTERISTICS
(VCC = 3.0V to 3.6V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
Data Rate
SYMBOL
CONDITIONS
1000pF 3kΩ load on each transmitter,
150pF load on each receiver
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Output Enable Time
Transmitter Output Disable Time
Receiver Propagation Delay
Transmitter Propagation Delay
Transition-Region Slew Rate
tER
tDR
tET
tDT
tPHLR
tPLHR
tPHLT
tPLHT
Includes power-supply start-up
150pF load
2500pF 3kΩ load
RL = 3kΩ to 7kΩ, CL = 50pF to 2500pF,
measured from +3V to -3V or -3V to +3V
MIN TYP MAX UNITS
120
250
kbps
70
200
ns
420
700
ns
250
µs
600
ns
300
700
ns
300
700
800 2000
ns
800 2000
4.0
10
30
V/µs
__________________________________________Typical Operating Characteristics
(VCC = 3.3V, TA = +25°C, unless otherwise noted.)
SUPPLY POWER vs.
DATA RATE
180
ALL TRANSMITTERS
LOADED w/ 3kΩ AND
160 STATED CAPACITANCE
3 TRANSMITTERS
140 AT DATA RATE
2500pF
3 TRANSMITTERS,
120 1 AT DATA RATE,
1 LOW, 1 HIGH
1000pF
100
2500pF
80
1000pF
60
0 20 40 60 80 100 120
DATA RATE (kbps)
TRANSMITTER OUTPUT VOLTAGE vs.
DATA RATE
6
4
5000pF
4000pF
2500pF
2 ALL TRANSMITTERS
1000pF
LOADED SIMULTANEOUSLY
0 w/ SPECIFIED CAPACITANCE AND 3kΩ
-2 5000pF
4000pF
2500pF
-4 1000pF
-6
0
50 100 150 200 250
DATA RATE (kbps)
_______________________________________________________________________________________ 3
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