MAX3235ECWP Ver la hoja de datos (PDF) - Maxim Integrated
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fabricante
MAX3235ECWP
Maxim Integrated
MAX3235ECWP Datasheet PDF : 12 Pages
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±15kV ESD-Protected, 1µA, 250kbps, 3.3V/5V, Dual
RS-232 Transceivers with Internal Capacitors
TIMING CHARACTERISTICS (continued)
(VCC = +3.0V to +3.6V for MAX3233E, VCC = +4.5V to +5.5V for MAX3235E; TA = TMIN to TMAX; unless otherwise noted. Typical val-
ues are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Maximum Data Rate
RL = 3kΩ, CL = 1000pF,
one transmitter switching
250
kbps
Receiver Propagation Delay
tPHL
tPLH
R_IN to R_OUT,
CL = 150pF
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
tPHL - tPLH
Normal operation
Normal operation
(Note 3)
Receiver Skew
tPHL - tPLH
MAX3233E
MAX3235E
MAX3233E
MAX3235E
MAX3233E
MAX3235E
70
100
ns
250
150
200
ns
200
ns
150
ns
180
ns
50
ns
VCC = 3.3V (MAX3233E),
VCC = 5.0V (MAX3235E),
CL = 150pF
to 1000pF
6
30
NToratens2i:tioAn-trRaengsimonittSelre/rwecReaivteer
edge
is
defined
TA = +25°C,
asRaLt=ra3nksΩitioton 7thkrΩo,ugh
the
transmitter/receiver
input
logic
thresholds.
V/µs
Note 3: Transmitter skew is measured at the transmmeiattseurrzeedrofrocmro+ss3Vpotoin-t3sV. CL = 150pF
or -3V to +3V
to 2500pF
4
30
__________________________________________Typical Operating Characteristics
(VCC = +3.3V for MAX3233E, VCC = +5.0V for MAX3235E; 250kbps data rate; all transmitters loaded with 3kΩ and CL; TA = +25°C;
unless otherwise noted.)
TRANSMITTER OUTPUT VOLTAGE vs.
LOAD CAPACITANCE
10.0
7.5
VOUT+
5.0
2.5
0
-2.5
-5.0
VOUT-
-7.5
-10.0
0
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
OPERATING SUPPLY CURRENT
vs. LOAD CAPACITANCE
45
TRANSMITTER 1 AT DATA RATE
40 TRANSMITTER 2 AT 1/16 DATA RATE
35
30
250kbps
25
20
120kbps
15
10
20kbps
5
0
0 1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
16
14
12
10
8
6
4
2
0
0
SLEW RATE vs.
LOAD CAPACITANCE
SLEW RATE -
SLEW RATE +
1000 2000 3000 4000 5000
LOAD CAPACITANCE (pF)
4 _______________________________________________________________________________________
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