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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

? Low input current: 1.0 ; 0.1

? Output current 24 mA.

at Т = 25 °С.

? Latching current not less than 450 mA at Т = 25°С

?

The transmitter outputs and receiver inputs are protected to

15kV Air ESD.

ORDERING INFORMATION

MAX232CPE Plastic DIP

MAX232CSE

SOIC

MAX232CWE

Т_АMAX232CWE^о

For all packages

SOIC

С

Truth table

Pin symbols in package

Inputs

Outputs

R_IN, T_IN

R_OVT, T_OVT

V_CC

01

02

03

04

16

15

14

13

12

11

10

09

C1+

V+

H

L

GND

T1_OUT

R1_IN

H

C1-

C2+

Note -

H – voltage high level;

L – low voltage level

C2- 05

R1_OUT

T1_IN

06

07

08

V-

T2_OUT

R2_IN

T2_IN

R2_OUT

MAX232

Table of pin description

Pin No.

Symbol

Pin name

01

C1+

Output of external capacitance of positive voltage multiplier unit

02

03

04

05

06

07

08

09

V+

C1-

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 negative voltage of multiplier unit

C2+

C2-

V-

T2_OUT

R2_IN

R2_OUT

Output of transmitter data (levels RS – 232)

Input of receiver data (levels RS – 232)

Output of receiver data (levels TTL/KMOS)

10

11

12

13

14

15

16

T2_IN

T1_IN

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

R1_OUT

R1_IN

T1_OUT

GND

V_CC

Supply output of voltage source

Maximum conditions

Rate

Symbol

Parameter

Unit

min

max

V_CC

V+

Supply voltage

-0.3

6.0

14

V

Transmitter high output voltage

Transmitter low output voltage

V_CC-0.3

V-

-0.3

-14

V_TIN

V_RIN

Transmitter input voltage

Receiver input voltage

Dissipated power

DIP – package

-0.3

-30

V+ +0.3

30

P_D

-

842

762

mW

SO - package

Continu-

ously

I_SC

Output current of transmitter short circuit

Ambient temperature

-

mA

Та

-60

150

^ОС

MAX232

Recommended Operating Conditions

Rate

Symbol

Parameter

Unit

min

4.5

5.0

-5.0

0

max

5.5

-

V_CC

V+

V-

Supply voltage

V

Transmitter output high voltage

Transmitter output low voltage

Transmitter input voltage

Receiver input voltage

-

V_TIN

V_RIN

I_SC

V_СС

30

-30

-

Transmitter short circuit output current

Ambient temperature

mA

^ОС

60

85

Та

-40

+

5V

+

0.1 μF

16

1

C1+

C1-

2

6

+

V+

V-

0.1 μF

3

4

C2+

C2-

0.1 μF

0.1

μF

+

5

14

11

TTL/CMOS

Intput

RS-232

Output

7

10

13

12

TTL/CMOS

Output

RS-232

Input

5к

9

8

15

MAX232

Static parameters

Symbol

Parameter

Test conditions

Unit

Rate

25°C

max

-40 °C to 85 °C

min max

min

?

Consumption current V_CC=5.0 V

static V_IL= 0 V

-

10.0

-

mA

V

I_CC

14.0

Receiver electrical parameters

Hysteresis voltage

V_CC=5.0 V

0.2

-

0.9

2.4

0.2

-

1.0

2.3

V_h

On (operation) voltage

V_O

I_OL

≤

0.1 V

V_O

n

20 uA

Off (dropout) voltage

Output low voltage

0.8

-

0.9

-

V_O

I_OH

≥

≤

V_CC-0.1 V

-20 uA

V

off

I_OL= 3.2 m

А

0.3

0.4

V_OL

V_OH

R_I

V_СС= 4.5 V

V_IH= 2.4 V

Output high voltage

Input resistance

I_OH= -1.0 mA

V_СС= 4.5 V

V_IL= 0.8 V

3.6

-

3.5

-

V_СС= 5.0 V

3.0

-

7.0

3.0

-

7.0

kOhm

V

Transmitter electrical parameters

Output low voltage

V_СС= 4.5 V

V_IH= 2.0 V

R_L= 3.0 kOhm

-5.2

-5.0

V_OL

V_OH

I_IL

Output high voltage

V_СС= 4.5 V

V_IL= 0.8 V

R_L= 3.0 kOhm

5.2

-

5.0

-

Input low current

Input high current

V_СС=5.5 V

V_IL= 0 V

-1.0

-10.0

V_СС=5.5 V

V_IH= V_СС

1.0

30

10.0

27

I_IH

Speed of output front V_СС=5.0 V

change

3.0

2.7

SR

V/

С_L=50 - 1000 pF

R_L= 3.0 - 7.0 kOhm

Output resistance

V_СС= V+ = V- = 0 V

V_O= 2 V

350

-

300

-

Ohm

mA

R_О

I_SC

Short circuit output

current

V_СС=5.5 V

V_O= 0 V

V_I= V_СС

V_I= 0 V

-50

50

-60

60

ST

Speed of information V_СС=4.5 V

transmission _L= 1000 pF

R_L= 3.0 kOhm

140

-

120

-

kbps

С

t

_W= 7us (for extreme

-t_W= 8us)

MAX232

Dynamic parameters

Symbol

Parameter

Test conditions

Unit

Rate

from -40 °C

25 °C

to 85 °C

min max

9.7

10

t_PHLR

Signal propagation delay time V_СС= 4.5 V

when switching on (off) _L= 150 pF

V_IL= 0 V

-

us

С

(t_PLHR

)

V_IH= 3.0 V

t_LH

=

t_HL

≤

10 ns

?

t_PHLT

Signal propagation delay time V_СС= 4.5 V

when switching on (off)

5.0

6.0

С_L= 2500 pF

V_IL= 0 V

(t_PLHT

)

V_IH= 3.0 V

R_L= 3 kOhm

t_LH= t_HL≤ 10 ns

Capacitance

Symbol

Parameter

Input capacitance

Unit

V_CC

,

Rate

C_IN

5.0

9.0

90

pF

C_PD

Dynamic capacitance

Timing diagram when measuring IC dynamic parameters

+3 V

Rin

1.5 V

0 V

V_OH

0.5Vcc

Rout

V_OL

t_PHLR

t _PLHR

Figure 3

MAX232

+3 V

Tin

1.5 V

0 V

V_OH

1.5 V

Tout

V_OL

t_PHLT

t_PLHT

Figure 4

Tin

t_SLH

t _SHL

+3 V

Tout

-3 V

Figure 5

t_W

T_IN

t_W

T_OUT

Control

strobe

Figure 6

MAX232

N SUFFIX PLASTIC DIP

(MS - 001BB)

A

Dimension, mm

9

8

16

1

Symbol

MIN

18.67

6.1

MAX

19.69

7.11

B

A

B

C

D

F

5.33

0.36

1.14

0.56

F

L

1.78

C

2.54

7.62

G

H

J

SEATING

PLANE

-T-

N

M

0

°

10

°

J

G

K

H

D

2.92

7.62

0.2

3.81

8.26

0.36

K

L

M

N

0.25 (0.010) M

T

NOTES:

1. Dimensions “A”, “B” do not include mold flash or protrusions.

Maximummold flash or protrusions 0.25 mm(0.010) per side.

0.38

D SUFFIX SOIC

(MS - 012AC)

Dimension, mm

A

16

Symbol

MIN

9.8

MAX

10

9

A

B

C

D

F

H

B

P

3.8

4

1.35

0.33

0.4

1.75

0.51

1.27

1

8

G

R x 45

C

1.27

5.72

G

H

J

-T-

SEATING

PLANE

K

M

D

J

F

0.25 (0.010) M T C

M

0

°

8

°

0.1

0.19

5.8

0.25

6.2

K

M

P

NOTES:

1. Dimensions A and B do not include mold flash or protrusion.

2. Maximummold flash or protrusion 0.15 mm(0.006) per side

for A; for B 0.25 mm(0.010) per side.

0.25

0.5

R