MAX3221EEAE/GH9 Maxim Integrated, MAX3221EEAE/GH9 Datasheet - Page 4
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MAX3221EEAE/GH9
Manufacturer Part Number
MAX3221EEAE/GH9
Description
RS-232 Interface IC
Manufacturer
Maxim Integrated
Series
MAX3221E, MAX3223E, MAX3243Er
Datasheet
1.MAX3223EETP.pdf
(19 pages)
Specifications of MAX3221EEAE/GH9
Data Rate
120 Kbps
Operating Supply Voltage
3 V to 5.5 V
Supply Current
1 mA
Operating Temperature Range
0 C to + 70 C
Function
Transceiver
Number Of Drivers
1
Number Of I/os
4
Number Of Receivers
1
Propagation Delay Time Ns
0.3 us
Shutdown
Yes
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
TIMING CHARACTERISTICS—MAX3221E/MAX3223E/MAX3243E
(V
MAX3221E/MAX3223E/MAX3243E
Note 2: C1–C4 = 0.1µF, tested at 3.3V ±10%. C1 = 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%.
Note 3: Transmitter skew is measured at the transmitter zero cross points.
(V
4
Maximum Data Rate
Receiver Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition-Region Slew Rate
CC
CC
= +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), T
= +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C
PARAMETER
-1
-2
-3
-4
-5
-6
6
5
4
3
2
1
0
0
T1 TRANSMITTING AT 250kbps
T2 (MAX3223E) TRANSMITTING AT 15.6kbps
TRANSMITTER OUTPUT VOLTAGE
1000
vs. LOAD CAPACITANCE
MAX3221E/MAX3223E
LOAD CAPACITANCE (pF)
2000
⏐ t
⏐ t
SYMBOL
PHL
PHL
3000
t
t
PHL
PLH
- t
- t
PLH
PLH
V
V
4000
OUT+
OUT-
⏐
⏐
5000
R
one transmitter switching
C
Normal operation
Normal operation
(Note 3)
V
R
T
measured from +3V
to -3V or
-3V to +3V, one
transmitter switching
A
A
CC
L
L
L
= T
= +25°C,
= 3kΩ to 7kΩ,
= 3kΩ, C
= 150pF
= 3.3V,
MIN
to T
CONDITIONS
L
MAX
= 1000pF,
, unless otherwise noted. Typical values are at T
Typical Operating Characteristics
C
1000pF
L
= 150pF to
16
14
12
10
8
6
4
2
0
0
SLEW RATE vs. LOAD CAPACITANCE
FOR DATA RATES UP TO 250kbps
L
MIN
250
, T
6
1000
A
MAX3221E/MAX3223E
= +25°C, unless otherwise noted.)
LOAD CAPACITANCE (pF)
+SLEW
2000
TYP
0.15
0.15
200
200
100
50
3000
-SLEW
4000
A
MAX
= +25°C.)
30
Maxim Integrated
5000
UNITS
kbps
V/µs
µs
ns
ns
ns
ns