TEXAS INSTRUMENTS MAX3232E Technical data

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D, DB, DW, OR PW PACKAGE

(TOP VIEW)

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

C1+

V+
C1−
C2+
C2−

V−

DOUT2

RIN2

V

CC

GND
DOUT1
RIN1
ROUT1
DIN1
DIN2
ROUT2

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

FEATURES APPLICATIONS

• ESD Protection for RS-232 Bus Pins
– ± 15 kV (HBM)
– ± 8 kV (IEC61000-4-2, Contact Discharge)
– ± 15 kV (IEC61000-4-2, Air-Gap Discharge)

• Meets or Exceeds the Requirements of
TIA/EIA-232-F and ITU v.28 Standards

• Operates With 3-V to 5.5-V V

• Operates up to 250 kbit/s

• Two Drivers and Two Receivers

• Low Supply Current . . . 300 µ A Typ

• External Capacitors . . . 4 × 0.1 µ F

• Accepts 5-V Logic Input With 3.3-V Supply

• Pin Compatible to Alternative High-Speed

Device (1 Mbit/s)
– SNx5C3232

Supply

CC

MAX3232E

WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

• Battery-Powered Systems

• PDAs

• Notebooks

• Laptops

• Palmtop PCs

• Hand-Held Equipment

DESCRIPTION/ORDERING INFORMATION

ORDERING INFORMATION

T

A

SOIC – D MAX3232EC

SOIC – DW MAX3232EC

–0 ° C to 70 ° C

SSOP – DB MP232EC

TSSOP – PW MP232EC

SOIC – D MAX3232EI

SOIC – DW MAX3232EI

–40 ° C to 85 ° C

SSOP – DB MP232EI

TSSOP – PW MP232EI

(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

website at www.ti.com .

PACKAGE

(1) (2)

Tube of 40 MAX3232ECD
Reel of 2500 MAX3232ECDR
Tube of 40 MAX3232ECDW
Reel of 2000 MAX3232ECDWR
Tube of 80 MAX3232ECDB
Reel of 2000 MAX3232ECDBR
Tube of 90 MAX3232ECPW
Reel of 2000 MAX3232ECPWR
Tube of 40 MAX3232EID
Reel of 2500 MAX3232EIDR
Tube of 40 MAX3232EIDW
Reel of 2000 MAX3232EIDWR
Tube of 80 MAX3232EIDB
Reel of 2000 MAX3232EIDBR
Tube of 90 MAX3232EIPW
Reel of 2000 MAX3232EIPWR

ORDERABLE PART NUMBER TOP-SIDE MARKING

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Copyright © 2005–2007, Texas Instruments Incorporated

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DIN1

DOUT1

RIN1ROUT1

DIN2

DOUT2

RIN2ROUT2

11

10

12

9

14

7

13

8

MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

The MAX3232E device consists of two line drivers, two line receivers, and a dual charge-pump circuit with
± 15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). The device meets the
requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small external capacitors allow operation
from a single 3-V to 5.5-V supply. The devices operate at data signaling rates up to 250 kbit/s and a maximum
of 30-V/ µ s driver output slew rate.

FUNCTION TABLES

ABC

EACH DRIVER

INPUT OUTPUT

DIN DOUT

L H
H L

(1) H = high level, L = low level

(1)

EACH RECEIVER

INPUT OUTPUT

RIN ROUT

L H
H L

Open H

(1) H = high level, L = low level,

Open = input disconnected or
connected driver off

LOGIC DIAGRAM (POSITIVE LOGIC)

(1)

2

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3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

V

CC

V

+

Supply voltage range

Positive output supply voltage range
V– Negative output supply voltage range
V+ – Supply voltage difference

V–

V

I

V

O

θ

JA

T

J

T

stg

Input voltage range

Output voltage range

Package thermal impedance

Operating virtual junction temperature 150 ° C

Storage temperature range –65 150 ° C

(1) 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 under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to network GND.
(3) Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient

temperature is PD= (TJ(max) – TA)/ θJA. Operating at the absolute maximum TJof 150 ° C can affect reliability.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.

(2)

(1)

MIN MAX UNIT

–0.3 6 V

(2)

(2)

(2)

–0.3 7 V

0.3 –7 V

Drivers –0.3 6 V
Receivers –25 25 V
Drivers –13.2 13.2 V
Receivers –0.3 V

+ 0.3 V

CC

D package 73

(3) (4)

DB package 82
DW package 57
PW package 108

MAX3232E

13 V

° C/W

Recommended Operating Conditions

(1)

See Figure 4

MIN NO MAX UNIT

V

= 3.3 V 3 3.3 3.6

Supply voltage V

V

Driver high-level input voltage DIN V

IH

V

Driver low-level input voltage DIN 0 0.8 V

IL

V

Receiver input voltage –25 25 V

I

T

Operating free-air temperature ° C

A

(1) Test conditions are C1–C4 = 0.1 µ F at V

Electrical Characteristics

(1)

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V

CC

CC

V

= 5 V 4.5 5 5.5

CC

V

= 3.3 V 2 5.5

CC

V

= 5 V 2.4 5.5

CC

MAX3232EC 0 70
MAX3232EI –40 85

= 5 V ± 0.5 V.

CC

M

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )

PARAMETER TEST CONDITIONS MIN TYP

I

Supply current No load, V

CC

(1) Test conditions are C1–C4 = 0.1 µ F at V
(2) All typical values are at V

= 3.3 V or V

CC

CC
CC

= 3.3 V or 5 V 0.3 1 mA

CC

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V
= 5 V, and TA= 25 ° C.

= 5 V ± 0.5 V.

CC

(2)

MAX UNIT

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MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

DRIVER SECTION
Electrical Characteristics

(1)

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )

PARAMETER TEST CONDITIONS MIN TYP

V

High-level output voltage DOUT at RL= 3 k Ω to GND, DIN = GND 5 5.4 V

OH

V

Low-level output voltage DOUT at RL= 3 k Ω to GND, DIN = V

OL

I

High-level input current VI= V

IH

I

Low-level input current VIat GND ± 0.01 ± 1 µ A

IL

(3)

I

Short-circuit output current ± 35 ± 60 mA

OS

r

Output resistance VCC, V+, and V– = 0 V, VO= ± 2 V 300 10M Ω

O

(1) Test conditions are C1–C4 = 0.1 µ F at V
(2) All typical values are at V
(3) Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one

= 3.3 V or V

CC

CC

V

= 3.6 V, VO= 0 V

CC

V

= 5.5 V, VO= 0 V

CC

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V

CC

= 5 V, and TA= 25 ° C.

CC

CC

–5 –5.4 V

= 5 V ± 0.5 V.

CC

output should be shorted at a time.

Switching Characteristics

(1)

(2)

MAX UNIT

± 0.01 ± 1 µ A

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )

PARAMETER TEST CONDITIONS MIN TYP

Maximum data rate 150 250 kbit/s

t

Pulse skew

sk(p)

Slew rate, transition region RL= 3 k Ω to 7 k Ω ,

SR(tr) V/ µ s

(see Figure 1) V

(3)

CL= 1000 pF, RL= 3 k Ω ,
One DOUT switching, See Figure 1

CL= 150 pF to 2500 pF, RL= 3 k Ω to 7 k Ω ,
See Figure 2

CL= 150 pF to 1000 pF 6 30

= 3.3 V

CC

CL= 150 pF to 2500 pF 4 30

(2)

MAX UNIT

300 ns

(1) Test conditions are C1–C4 = 0.1 µ F at V
(2) All typical values are at V
(3) Pulse skew is defined as |t

= 3.3 V or V

CC

PLH

– t

PHL

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V

CC

= 5 V, and TA= 25 ° C.

CC

| of each channel of the same device.

= 5 V ± 0.5 V.

CC

4

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RECEIVER SECTION

MAX3232E

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

Electrical Characteristics

(1)

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )

PARAMETER TEST CONDITIONS MIN TYP

V

OH

V

OL

V

IT+

V

IT–

V

hys

r

i

High-level output voltage IOH= –1 mA V
Low-level output voltage IOL= 1.6 mA 0.4 V

Positive-going input threshold voltage V

Negative-going input threshold voltage V

Input hysteresis (V

– V

IT+

) 0.3 V

IT–

Input resistance VI= ± 3 V to ± 25 V 3 5 7 k Ω

(1) Test conditions are C1–C4 = 0.1 µ F at V
(2) All typical values are at V

Switching Characteristics

= 3.3 V or V

CC

(1)

V

= 3.3 V 1.5 2.4

CC

V

= 5 V 1.8 2.4

CC

V

= 3.3 V 0.6 1.2

CC

V

= 5 V 0.8 1.5

CC

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V

CC

= 5 V, and TA= 25 ° C.

CC

CC

– 0.6 V

CC

= 5 V ± 0.5 V.

(2)

MAX UNIT

– 0.1 V

CC

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 3 )

PARAMETER TEST CONDITIONS TYP

t

Propagation delay time, low- to high-level output 300 ns

PLH

t

Propagation delay time, high- to low-level output 300 ns

PHL

t

Pulse skew

sk(p)

(3)

(1) Test conditions are C1–C4 = 0.1 µ F at V
(2) All typical values are at V
(3) Pulse skew is defined as |t

= 3.3 V or V

CC

PLH

– t

PHL

= 3.3 V ± 0.3 V; C1 = 0.047 µ F, C2–C4 = 0.33 µ F at V

CC

= 5 V, and TA= 25 ° C.

CC

| of each channel of the same device.

CL= 150 pF

= 5 V ± 0.5 V.

CC

(2)

300 ns

UNIT

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50 Ω

TEST CIRCUIT VOLTAGE W AVEFORMS

0 V

3 V

Output

Input

V

OL

V

OH

t

TLH

Generator

(see Note B)

R

L

RS-232
Output

t

THL

C

L

(see Note A)

SR(tr) +

6 V

t

THL

or t

TLH

NOTES: A. CL includes probe and jig capacitance.

B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

1.5 V 1.5 V

3 V

−3 V

3 V

−3 V

TEST CIRCUIT VOLTAGE W AVEFORMS

0 V

3 V

Output

Input

V

OL

V

OH

t

PLH

t

PHL

50%

50%

NOTES: A. CL includes probe and jig capacitance.

B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

1.5 V 1.5 V

50 Ω

Generator

(see Note B)

R

L

RS-232
Output

C

L

(see Note A)

TEST CIRCUIT VOLTAGE W AVEFORMS

50 Ω

50%

50%

−3 V

3 V

1.5 V

1.5 V

Output

Input

V

OL

V

OH

t

PHL

Generator

(see Note B)

t

PLH

Output

C

L

(see Note A)

NOTES: A. CL includes probe and jig capacitance.

B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns.

MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ± 15-kV IEC ESD PROTECTION

SLLS664A – AUGUST 2005 – REVISED APRIL 2007

PARAMETER MEASUREMENT INFORMATION

Figure 1. Driver Slew Rate

6

Figure 2. Driver Pulse Skew

Figure 3. Receiver Propagation Delay Times

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