TIGER ELECTRONIC CO.,LTD
MAX232
+5V-Powered, Multichannel RS-232
Drivers / Receivers
MAX232
is purposed for application in high-performance information processing systems and control
devices of wide application.
Input voltage levels are compatible with standard
СMOS
levels.
•
Output voltage levels are compatible with input levels
of K-MOS, N-MOS and TTL integrated circuits.
•
Supply voltage : 5V
at
Т
= 25
°
С.
•
Low input current: 1.0 ; 0.1
•
Output current 24 mA.
•
Latching current not less than 450 mA at
Т
= 25
°
С
•
The transmitter outputs and receiver inputs are protected to
±15kV Air ESD.
Truth table
Inputs
R
IN
, T
IN
H
L
Note -
H – voltage high level;
L – low voltage level
Outputs
R
OVT
, T
OVT
C1+
01
16
15
14
13
12
11
10
09
㎂
㎂
ORDERING INFORMATION
MAX232CPE
Plastic DIP
MAX232CSE
SOIC
С
MAX232CWE
SOIC
о
Т
А
MAX232CWE
For all packages
Pin symbols in package
V
CC
GND
T1
OUT
R1
IN
R1
OUT
T1
IN
T2
IN
R2
OUT
L
H
V+
02
C1-
03
C2+
04
C2-
05
V-
06
T2
OUT
07
R2
IN
08
MAX232
Table of pin description
Pin No.
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
Symbol
C1+
V+
C1-
C2+
C2-
V-
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
T1
OUT
GND
V
CC
Pin name
Output of external capacitance of positive voltage multiplier unit
Output of positive voltage of multiplier unit
Output of external capacitance of positive voltage multiplier unit
Output of external capacitance of negative voltage multiplier unit
Output of external capacitance of negative voltage multiplier unit
Output of negative voltage of multiplier unit
Output of transmitter data (levels RS – 232)
Input of receiver data (levels RS – 232)
Output of receiver data (levels TTL/KMOS)
Input of transmitter data (levels TTL/KMOS)
Input of transmitter data (levels TTL/KMOS)
Output of receiver data (levels TTL/KMOS)
Input of receiver data (levels RS – 232)
Output of transmitter data (levels RS – 232)
Common output
Supply output of voltage source
Maximum conditions
Rate
Symbol
V
CC
V+
V-
V
TIN
V
RIN
P
D
Supply voltage
Transmitter high output voltage
Transmitter low output voltage
Transmitter input voltage
Receiver input voltage
Dissipated power
DIP – package
SO - package
I
SC
Та
Output current of transmitter short circuit
Ambient temperature
-
-60
-
842
762
Continu-
ously
150
mW
Parameter
min
-0.3
V
CC
-0.3
-0.3
-0.3
-30
max
6.0
14
-14
V+ +0.3
30
Unit
V
mA
О
С
MAX232
Recommended Operating Conditions
Rate
min
4.5
5.0
-5.0
0
-30
-
-40
max
5.5
-
-
V
СС
30
Symbol
V
CC
V+
V-
V
TIN
V
RIN
I
SC
Та
Supply voltage
Parameter
Unit
V
Transmitter output high voltage
Transmitter output low voltage
Transmitter input voltage
Receiver input voltage
Transmitter short circuit output current
Ambient temperature
±
60
85
mA
О
С
5V
0.1
µ
F
+
+
0.1
µ
F
16
1
0.1
µ
F
+
3
0.1
µ
F
+
4
5
C1+
C1-
C2+
C2-
V+
V-
2
6
+
0.1
µ
F
11
TTL/CMOS
Intput
10
14
RS-232
7 Output
12
TTL/CMOS
Output
13
5к
9
8
RS-232
Input
5к
15
MAX232
Static parameters
Symbol
Parameter
Test conditions
25°C
°
min
max
-
10.0
Rate
-40
°
C to 85
°
C
min
max
∗
-
14.0
Unit
I
CC
Consumption current
static
Hysteresis voltage
V
CC
=5.0 V
V
IL
= 0 V
V
CC
=5.0 V
mA
Receiver electrical parameters
V
h
V
O
n
V
off
V
OL
0.2
-
0.8
-
0.9
2.4
-
0.3
0.2
-
0.9
-
1.0
2.3
-
0.4
V
On (operation) voltage V
O
≤
0.1 V
I
OL
≤
20 uA
Off (dropout) voltage V
O
≥
V
CC
-0.1 V
I
OH
≤
-20 uA
Output low voltage
I
OL
= 3.2 mА
V
СС
= 4.5 V
V
IH
= 2.4 V
I
OH
= -1.0 mA
V
СС
= 4.5 V
V
IL
= 0.8 V
V
СС
= 5.0 V
V
OH
Output high voltage
3.6
-
3.5
-
R
I
V
OL
Input resistance
3.0
7.0
3.0
7.0
kOhm
Transmitter electrical parameters
Output low voltage
V
СС
= 4.5 V
V
IH
= 2.0 V
R
L
= 3.0 kOhm
V
СС
= 4.5 V
V
IL
= 0.8 V
R
L
= 3.0 kOhm
V
СС
=5.5 V
V
IL
= 0 V
V
СС
=5.5 V
V
IH
= V
СС
V
СС
=5.0 V
С
L
=50 - 1000 pF
R
L
= 3.0 - 7.0 kOhm
V
СС
= V+ = V- = 0 V
V
O
=
±
2 V
V
СС
=5.5 V
V
O
= 0 V
V
I
= V
СС
V
I
= 0 V
V
СС
=4.5 V
С
L
= 1000 pF
R
L
= 3.0 kOhm
t
W
= 7us (for extreme
-
t
W
= 8us)
140
3.0
-
-5.2
-
-5.0
V
V
OH
Output high voltage
5.2
-
5.0
-
I
IH
SR
Input high current
Speed of output front
change
Output resistance
Short circuit output
current
1.0
30
2.7
10.0
V/
R
О
I
SC
350
-
300
-
Ohm
mA
-50
50
-
120
-60
60
-
kbps
ST
Speed of information
transmission
㎲
27
Au
I
IL
Input low current
-
-1.0
-
-10.0
MAX232
Dynamic parameters
Symbol
Parameter
Test conditions
25
°
C
min
t
PHLR
(t
PLHR
)
Signal propagation delay time V
СС
= 4.5 V
when switching on (off)
С
L
= 150 pF
V
IL
= 0 V
V
IH
= 3.0 V
t
LH
=
t
HL
≤
10 ns
Signal propagation delay time V
СС
= 4.5 V
when switching on (off)
С
L
= 2500 pF
V
IL
= 0 V
V
IH
= 3.0 V
R
L
= 3 kOhm
t
LH
=
t
HL
≤
10 ns
-
max
9.7
Rate
from -40
°
C
to 85
°
C
min max
-
10
us
Unit
t
PHLT
(t
PLHT
)
5.0
∗
6.0
∗
Capacitance
Symbol
C
IN
C
PD
Parameter
Input capacitance
Dynamic capacitance
V
CC
,
5.0
Rate
9.0
90
Unit
pF
Timing diagram when measuring IC dynamic parameters
+3 V
Rin
1.5 V
1.5 V
0V
V
OH
0.5Vcc
Rout
0.5Vcc
V
OL
t
PHLR
t
PLHR
Figure 3
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