MAX2_ _C_ _ ...................................................... 0NC to +70NC
MAX2_ _E_ _ ................................................... -40NC to +85NC
MAX2_ _ M_ _ ............................................... -55NC to +125NC
Storage Temperature Range............................ -65NC to +160NC
Lead Temperature (soldering, 10s) (Note 1) ..................+300NC
Note 1:
Maximum reflow temperature for the MAX203 and MAX205 is +225°C.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(MAX202/MAX204/MAX206/MAX208/MAX211/MAX213: V
CC
= +5V
Q10%;
MAX200/MAX203/MAX205/MAX207: V
CC
= +5V
Q5%,
C1–C4 = 0.1FF; MAX201/MAX209: V
CC
= +5V
Q10%,
V+ = +9.0V to +13.2V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
Output-Voltage Swing
V
CC
Power-Supply
Current
CONDITIONS
All transmitter outputs loaded with 3kI to ground
MAX202, MAX203
No load, T
A
= +25NC
MAX200, MAX204–MAX208, MAX211,
MAX213
MAX201, MAX209
V+ Power-Supply Current
Shutdown Supply Current
Input Logic Threshold
Low
Input Logic Threshold
High
Logic Pullup Current
RS-232 Input-Voltage
Operating Range
No load
Figure 1, T
A
= +25NC
MAX201
MAX209
MAX200, MAX205, MAX206, MAX211
MAX213
MIN
Q5
TYP
Q8
8
11
0.4
5
7
1
15
15
20
1
10
15
10
50
0.8
2.0
2.4
15
-30
200
+30
mA
FA
V
V
FA
V
mA
MAX
UNITS
V
T
IN
,
EN,
SHDN, EN,
SHDN
T
IN
EN,
SHDN, EN,
SHDN
T
IN
= 0V
2
+5V, RS-232 Transceivers
with 0.1µF External Capacitors
ELECTRICAL CHARACTERISTICS (continued)
(MAX202/MAX204/MAX206/MAX208/MAX211/MAX213: V
CC
= +5V
Q10%;
MAX200/MAX203/MAX205/MAX207: V
CC
= +5V
Q5%,
C1–C4 = 0.1FF; MAX201/MAX209: V
CC
= +5V
Q10%,
V+ = +9.0V to +13.2V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
Receiver Input Threshold
Low
Receiver Input Threshold
High
RS-232 Input Hysteresis
RS-232 Input Resistance
TTL/CMOS Output-
Voltage Low
TTL/CMOS Output-
Voltage High
TTL/CMOS Output
Leakage Current
Output Enable Time
Output Disable Time
Receiver Propagation
Delay
Transmitter Output
Resistance
Transition Region Slew
Rate
RS-232 Output Short-
Circuit Current
Maximum Data Rate
R
L
= 3kI to 7kI, C
L
= 50pF to 1000pF, one transmitter
120
V
CC
= +5V,
T
A
= +25NC
V
CC
= +5V,
T
A
= +25NC
V
CC
= +5V, T
A
= +25NC
I
OUT
= 3.2mA
I
OUT
= 1.6mA
I
OUT
= 1.0mA
EN
= V
CC
, EN = 0V, 0
P
R
OUT
P
V
CC
Figure 2
Figure 2
SHDN
= 0V, R4, R5
SHDN
= V
CC
MAX200–MAX211
MAX205, MAX206, MAX209, MAX211,
MAX213
MAX205, MAX206, MAX209, MAX211,
MAX213
MAX213
MAX201, MAX202, MAX203
All others
3.5
0.05
600
200
4
0.5
0.5
300
3
5.5
4
Q10
30
V/Fs
MAX201
30
Q60
mA
kbps
40
10
10
I
Fs
±10
CONDITIONS
Active mode
Shutdown mode, MAX213, R4, R5
Active mode
Shutdown mode, MAX213, R4, R5
0.2
3
MIN
0.8
0.6
TYP
1.2
1.5
1.7
1.5
0.5
5
2.4
2.4
1.0
7
0.4
MAX
UNITS
V
V
V
kI
V
V
FA
ns
ns
MAX200–MAX209/MAX211/MAX213
V
CC
= +5V, no hysteresis in shutdown
V
CC
= V+ = V- = 0V, V
OUT
=
Q2V
C
L
= 50pF to 2500pF,
R
L
= 3kI to 7kI,
V
CC
= 5V, T
A
= +25NC
measured from +3V to
-3V or -3V to +3V
MAX200, MAX202–MAX211, MAX213
3
+5V, RS-232 Transceivers
with 0.1µF External Capacitors
MAX200–MAX209/MAX211/MAX213
Typical Operating Characteristics
MAX200/204/205/206/207/208/211/213
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX200-MAX213 toc01
MAX200/204/205/206/207/208/211/213
TRANSMITTER SKEW RATE
vs. LOAD CAPACITANCE
MAX200-MAX213 toc02
MAX209
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
9.8
Tx OUTPUT VOLTAGE (IVI)
9.6
9.4
9.2
9.0
8.8
8.6
V
CC
= +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
L
T
A
= +25NC
V+ = 12V
0
20kbps
MAX200-MAX213 toc03
7.0
6.8
Tx OUTPUT VOLTAGE (IVI)
6.6
6.4
6.2
6.0
5.8
5.6
5.4
5.2
5.0
0
V
CC
= +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
L
T
A
= +25NC
60kbps
20kbps
22
20
18
Tx SLEW RATE (V/Fs)
16
14
12
10
8
6
4
2
+SLEW RATE
0
V
CC
= +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
L
T
A
= +25NC
10.0
60kbps
-SLEW RATE
116kbps
116kbps
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
8.4
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
MAX201
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX200-MAX213 toc04
MAX201/MAX209
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
-SLEW RATE
V
CC
= +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
L
T
A
= +25NC
V+ = 12V
MAX209
10
5
+SLEW RATE
MAX200-MAX213 toc05
10.0
9.5
Tx OUTPUT VOLTAGE (IVI)
20kbps
9.0
60kbps
8.5
8.0
7.5
7.0
0
V
CC
= +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
L
T
A
= +25NC
V+ = 12V
25
20
Tx SLEW RATE (V/Fs)
15
112kbps
0
5000
0
MAX201
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
MAX202/203
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX200-MAX213 toc06
MAX202/203
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
MAX200-MAX213 toc07
MAX202/203
SUPPLY CURRENT
vs. LOAD CAPACITANCE
V
CC
= +4.5V, T
A
= +25NC,
BOTH Tx OUTPUTS, LOADED 3kΩIIC
L
ONE TRANSMITTER AT FULL DATA RATE
ONE TRANSMITTER AT 1/8 DATA RATE
MAX200-MAX213 toc08
7.5
5.0
Tx OUTPUT VOLTAGE (V)
2.5
0
-2.5
-5.0
-7.0
0
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
14
12
Tx SLEW RATE (V/Fs)
10
8
6
4
2
0
V
CC
= +4.5V, T
A
= +25NC
BOTH Tx OUTPUTS, LOADED 3kΩIIC
L
ONE TRANSMITTER AT FULL DATA RATE
ONE TRANSMITTER AT 1/8 DATA RATE
240kbps
120kbps
20kbps
240kbps
-SLEW RATE
20kbps
120kbps
240kbps
SUPPLY CURRENT (mA)
20kbps
120kbps
+SLEW RATE
20kbps
120kbps
240kbps
35
30
25
20
240kbps
120kbps
V
CC
= +4.5V, T
A
= +25NC
BOTH Tx OUTPUTS, LOADED 3kΩIIC
L
ONE TRANSMITTER AT FULL DATA RATE
ONE TRANSMITTER AT 1/8 DATA RATE
0
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
20kbps
15
10
0
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
5000
4
+5V, RS-232 Transceivers
with 0.1µF External Capacitors
I
SHDN
+5.5V
0.1FF
0.1FF
Detailed Description
The MAX200–MAX209/MAX211/MAX213 consist of
three sections: charge-pump voltage converters, drivers
(transmitters), and receivers. Each section is described
in detail.
MAX200–MAX209/MAX211/MAX213
C1+
0.1FF
C1-
C2+
0.1FF
C2-
+5.5V
V
CC
V+
MAX200
MAX205
MAX206
MAX211
MAX213
V-
0.1FF
400kI
+5.5V
T
IN
T1 T0 T5
T
OUT
3kI
R1 T0 R5
The +5V to
Q10V
conversion is performed by two
charge-pump voltage converters (Figure 4). The first
uses capacitor C1 to double +5V to +10V, storing +10V
on the V+ output filter capacitor, C3. The second charge-
pump voltage converter uses capacitor C2 to invert +10V
to -10V, storing -10V on the V- output filter capacitor, C4.
+5V to
±
10V Dual Charge-Pump
Voltage Converter
R
OUT
R
IN
5kI
+5.5V
The MAX201 and MAX209 include only the V+ to V-
charge pump, and are intended for applications that
have a V
CC
= +5V supply and a V+ supply in the +9V to
+13.2V range.
In shutdown mode, V+ is internally connected to V
CC
by
a 1kI pulldown resistor and V- is internally connected to
ground by a 1kI pullup resistor.
When V
CC
= +5V, the typical driver output-voltage swing
is
Q8V
when loaded with a nominal 5kI RS-232 receiver.
The output swing is guaranteed to meet the EIA/TIA-232E
and V.28 specifications, which call for
Q5V
minimum out-
put levels under worst-case conditions. These include
a minimum 3kI load, V
CC
= +4.5V, and the maximum
operating temperature. The open-circuit output-voltage
swing ranges from (V+ - 0.6V) to V-.
Input thresholds are both CMOS and TTL compatible.
The inputs of unused drivers can be left unconnected
since 400kI pullup resistors to V
CC
are included on-
chip. Since all drivers invert, the pullup resistors force
the outputs of unused drivers low. The input pullup resis-
tors typically source 15µA; therefore, the driver inputs
should be driven high or open circuited to minimize
power-supply current in shutdown mode.
When in low-power shutdown mode, the driver outputs
are turned off and their leakage current is less than 1mA,
even if the transmitter output is backdriven between 0V
and (V
CC
+ 6V). Below -0.5V, the transmitter output is
diode clamped to ground with a 1kI series impedance.
The transmitter output is also zener clamped to approxi-
mately (V
CC
+ 6V), with a 1kI series impedance.
0V OR +5.5V
DRIVE
+5.5V (0)
EN (EN)
SHDN
(SHDN)
GND
RS-232 Drivers
NOTE 1:
( ) ARE FOR MAX213.
NOTE 2:
CAPACITORS CAN BE POLARIZED OR UNPOLARIZED.
Figure 1. Shutdown Current Test Circuit
EN
INPUT +3V
0V
OUTPUT ENABLE TIME
+3.5V
RECEIVER
OUTPUT
C
L
= 150pF
+0.8V
+3V
EN
INPUT
0V
OUTPUT ENABLE TIME
V
OH
- 0.1V
R
L
= 1kI
V
OL
+ 0.1V
+ 2.5V
RECEIVER
OUTPUTS
V
OH
V
OL
NOTE:
POLARITY OF EN IS REVERSED FOR THE MAX213.
Figure 2. Receiver Output Enable and Disable Timing
#if UART_INT==0
#if SCI
while(ScibRegs.SCIFFRX.bit.RXFFST == 0); { } // wait for RRDY/RXFFST =1 for 1 data available in FIFO
dataB = ScibRegs.SCIRXBUF.all ......
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