Maxim MAX241EEAI, MAX241ECWI, MAX241ECAI, MAX232EEWE, MAX232EESE Datasheet

...
0 (0)

19-0175; Rev 3; 5/96

±15kV ESD-Protected, +5V RS-232 Transceivers

_______________General Description

The MAX202E–MAX213E, MAX232E/MAX241E line drivers/receivers are designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. The various combinations of features are outlined in the Selection Guide. The drivers and receivers for all ten devices meet all EIA/TIA-232E and CCITT V.28 specifications at data rates up to 120kbps, when loaded in accordance with the EIA/TIA-232E specification.

The MAX211E/MAX213E/MAX241E are available in 28pin SO packages, as well as a 28-pin SSOP that uses 60% less board space. The MAX202E/MAX232E come in 16-pin narrow SO, wide SO, and DIP packages. The MAX203E comes in a 20-pin DIP/SO package, and needs no external charge-pump capacitors. The MAX205E comes in a 24-pin wide DIP package, and also eliminates external charge-pump capacitors. The MAX206E/MAX207E/MAX208E come in 24-pin SO, SSOP, and narrow DIP packages. The MAX232E/ MAX241E operate with four 1µF capacitors, while the MAX202E/MAX206E/MAX207E/MAX208E/MAX211E/ MAX213E operate with four 0.1µF capacitors, further reducing cost and board space.

________________________Applications

Notebook, Subnotebook, and Palmtop Computers

Battery-Powered Equipment

Hand-Held Equipment

Ordering Information appears at end of data sheet.

____________________________Features

ESD Protection for RS-232 I/O Pins: ±15kV—Human Body Model ±8kV—IEC1000-4-2, Contact Discharge ±15kV—IEC1000-4-2, Air-Gap Discharge

Latchup Free (unlike bipolar equivalents)

Guaranteed 120kbps Data Rate—LapLink™ Compatible

Guaranteed 3V/µs Min Slew Rate

Operate from a Single +5V Power Supply

_________________Pin Configurations

TOP VIEW

C1+

1

 

16

VCC

V+

2

 

15

GND

C1-

3

 

14

T1OUT

C2+

4

MAX202E

13

R1IN

C2-

5

MAX232E

12

R1OUT

 

V-

6

 

11

T1IN

T2OUT

7

 

10

T2IN

R2IN

8

 

9

R2OUT

DIP/SO

Pin Configurations and Typical Operating Circuits continued at end of data sheet.

_____________________________________________________________Selection Guide

 

No. of RS-232

No. of RS-232

RECEIVERS

No. of

LOW-POWER

TTL THREE-

PART

ACTIVE IN

EXTERNAL

DRIVERS

RECEIVERS

SHUTDOWN

STATE

 

SHUTDOWN

CAPACITORS

 

 

 

 

 

 

 

 

 

 

 

 

MAX202E

2

2

0

4 (0.1µF)

No

No

 

 

 

 

 

 

 

MAX203E

2

2

0

None

No

No

 

 

 

 

 

 

 

MAX205E

5

5

0

None

Yes

Yes

 

 

 

 

 

 

 

MAX206E

4

3

0

4 (0.1µF)

Yes

Yes

 

 

 

 

 

 

 

MAX207E

5

3

0

4 (0.1µF)

No

No

 

 

 

 

 

 

 

MAX208E

4

4

0

4 (0.1µF)

No

No

 

 

 

 

 

 

 

MAX211E

4

5

0

4 (0.1µF)

Yes

Yes

 

 

 

 

 

 

 

MAX213E

4

5

2

4 (0.1µF)

Yes

Yes

 

 

 

 

 

 

 

MAX232E

2

2

0

4 (1µF)

No

No

 

 

 

 

 

 

 

MAX241E

4

5

0

4 (1µF)

Yes

Yes

 

 

 

 

 

 

 

LapLink is a registered trademark of Traveling Software, Inc.

________________________________________________________________ Maxim Integrated Products 1

MAX232E/MAX241E MAX213E,–MAX202E

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

ABSOLUTE MAXIMUM RATINGS

VCC ...........................................................................

-0.3V to +6V

V+ ................................................................

(VCC - 0.3V) to +14V

V- ............................................................................

-14V to +0.3V

Input Voltages

 

 

T_IN ............................................................

-0.3V to (V+ + 0.3V)

R_IN ...................................................................................

 

±30V

Output Voltages

 

 

T_OUT.................................................

(V- - 0.3V) to (V+ + 0.3V)

R_OUT......................................................

-0.3V to (VCC + 0.3V)

Short-Circuit Duration, T_OUT....................................

Continuous

Continuous Power Dissipation (TA = +70°C)

 

16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....

842mW

16-Pin Narrow SO (derate 8.70mW/°C above +70°C) .....

696mW

16-Pin Wide SO (derate 9.52mW/°C above +70°C) ......

762mW

20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...

889mW

20-Pin SO (derate 10.00mW/°C above +70°C).............

800mW

24-Pin Narrow Plastic DIP

 

 

(derate 13.33mW/°C above +70°C)

...............................

1.07W

24-Pin Wide Plastic DIP

 

 

(derate 14.29mW/°C above +70°C)................................

 

1.14W

24-Pin SO (derate 11.76mW/°C above .............+70°C)

941mW

24-Pin SSOP (derate 8.00mW/°C above ..........+70°C)

640mW

28-Pin SO (derate 12.50mW/°C above ....................+70°C)

1W

28-Pin SSOP (derate 9.52mW/°C above ..........+70°C)

762mW

Operating Temperature Ranges

 

 

MAX2_ _EC_ _ .....................................................

 

0°C to +70°C

MAX2_ _EE_ _...................................................

- 40°C to +85°C

Storage Temperature Range .............................

- 65°C to +165°C

Lead Temperature (soldering, 10sec) .............................

 

+300°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

(VCC = +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC = +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP

MAX

UNITS

 

 

 

 

 

 

 

 

DC CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX202E/203E

8

15

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX205E–208E

11

20

 

 

 

 

 

 

 

 

 

VCC Supply Current

ICC

No load, TA = +25°C

 

MAX211E/213E

14

20

mA

 

 

 

 

 

 

 

 

 

 

 

 

MAX232E

5

10

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX241E

7

15

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX205E/206E

1

10

 

 

 

 

 

 

 

 

 

Shutdown Supply Current

 

TA = +25°C, Figure 1

 

MAX211E/241E

1

10

µA

 

 

 

 

 

 

 

 

 

 

 

 

MAX213E

15

50

 

 

 

 

 

 

 

 

 

LOGIC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Pull-Up Current

 

T_IN = 0V (MAX205E–208E/211E/213E/241E)

15

200

µA

 

 

 

 

 

 

 

Input Leakage Current

 

T_IN = 0V to VCC (MAX202E/203E/232E)

 

±10

µA

 

 

 

 

 

 

 

Input Threshold Low

VIL

T_IN; EN, SHDN (MAX213E) or

 

0.8

V

EN, SHDN (MAX205E–208E/211E/241E)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T_IN

 

2.0

 

 

Input Threshold High

VIH

 

 

 

V

EN, SHDN (MAX213E) or EN, SHDN

2.4

 

 

 

(MAX205E–208E/211E/241E)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Low

VOL

R_OUT; IOUT = 3.2mA (MAX202E/203E/232E) or

 

0.4

V

IOUT = 1.6mA (MAX205E/208E/211E/213E/241E)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage High

VOH

R_OUT; IOUT = -1.0mA

 

3.5 VCC - 0.4

 

V

 

 

 

 

 

 

 

Output Leakage Current

 

EN = VCC, EN = 0V, 0V ROUT VCC,

±0.05

±10

µA

 

MAX205E–208E/211E/213E/241E outputs disabled

 

 

 

 

 

 

 

 

 

 

 

 

 

2 _______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers

ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC = +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; TA = TMIN to TMAX; unless otherwise noted. Typical values are at TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

 

 

 

 

 

 

 

 

 

EIA/TIA-232E RECEIVER INPUTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Voltage Range

 

 

 

 

-30

 

30

V

 

 

 

 

 

 

 

 

 

 

 

 

 

All parts, normal operation

0.8

1.2

 

 

Input Threshold Low

 

TA = +25°C,

 

MAX213E, SHDN = 0V,

0.6

1.5

 

V

 

VCC = 5V

 

 

 

 

 

EN = VCC

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C,

 

All parts, normal operation

 

1.7

2.4

 

Input Threshold High

 

 

 

 

 

 

V

 

 

MAX213E (R4, R5),

 

 

 

 

VCC = 5V

 

 

1.5

2.4

 

 

 

SHDN = 0V, EN = VCC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input Hysteresis

 

VCC = 5V, no hysteresis in shutdown

0.2

0.5

1.0

V

 

 

 

 

 

 

 

 

Input Resistance

 

TA = +25°C, VCC = 5V

3

5

7

 

 

 

 

 

 

 

 

 

EIA/TIA-232E TRANSMITTER

OUTPUTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Voltage Swing

 

All drivers loaded with 3kΩ to ground (Note 1)

±5

±9

 

V

 

 

 

 

 

 

 

 

Output Resistance

 

VCC = V+ = V- = 0V, VOUT = ±2V

300

 

 

Ω

 

 

 

 

 

 

 

 

 

Output Short-Circuit Current

 

 

 

 

 

±10

±60

mA

 

 

 

 

 

 

 

 

 

TIMING CHARACTERISTICS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Data Rate

 

RL = 3kΩ to 7kΩ , CL = 50pF to 1000pF,

120

 

 

kbps

 

one transmitter switching

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tPLHR,

 

 

All parts, normal operation

 

0.5

10

 

Receiver Propagation Delay

CL = 150pF

 

 

 

 

 

µs

 

MAX213E (R4, R5),

 

 

 

tPHLR

 

 

4

40

 

 

 

SHDN = 0V, EN = VCC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Output Enable Time

 

MAX205E/206E/211E/213E/241E normal

 

600

 

ns

 

operation, Figure 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Receiver Output Disable Time

 

MAX205E/206E/211E/213E/241E normal

 

200

 

ns

 

operation, Figure 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter Propagation Delay

tPLHT,

RL = 3kΩ , CL = 2500pF, all transmitters loaded

 

2

 

µs

tPHLT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TA = +25°C, VCC = 5V, RL = 3kΩ to 7kΩ ,

 

 

 

 

Transition-Region Slew Rate

 

CL = 50pF to 1000pF, measured from -3V to

3

6

30

V/µs

 

 

+3V or +3V to -3V, Figure 3

 

 

 

 

 

 

 

 

 

 

 

 

ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS

 

 

 

 

 

 

 

 

 

 

 

 

 

Human Body Model

 

±15

 

 

ESD-Protection Voltage

 

 

 

 

 

kV

 

IEC1000-4-2, Contact Discharge

 

±8

 

 

 

 

 

 

 

 

 

 

IEC1000-4-2, Air-Gap Discharge

 

±15

 

 

Note 1: MAX211EE_ _ and MAX213EE_ _ tested with VCC = +5V ±5%.

 

 

 

 

Note 1: MAX211EE_ _ tested with VCC = +5V ±5%.

 

 

 

 

 

MAX232E/MAX241E MAX213E,–MAX202E

_______________________________________________________________________________________ 3

Maxim MAX241EEAI, MAX241ECWI, MAX241ECAI, MAX232EEWE, MAX232EESE Datasheet

±15kV ESD-Protected, +5V RS-232 Transceivers

MAX202E–MAX213E, MAX232E/MAX241E

__________________________________________Typical Operating Characteristics

(Typical Operating Circuits, VCC = +5V, TA = +25°C, unless otherwise noted.)

MAX232E

MAX202E/MAX203E

MAX241E

TRANSMITTER OUTPUT VOLTAGE

TRANSMITTER OUTPUT VOLTAGE

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

vs. LOAD CAPACITANCE

vs. LOAD CAPACITANCE

 

8.0

 

 

 

Ω

MAX202E-TOC1

 

8.0

 

 

 

Ω

 

MAX202E-TOC2

 

8.0

 

 

 

 

MAX202E-TOC3

 

7.5

 

 

 

 

7.5

 

 

 

 

 

7.5

 

 

 

 

 

 

 

ALL TRANSMITTERS LOADED

 

 

 

 

ALL TRANSMITTERS LOADED

 

 

 

 

ALL TRANSMITTERS LOADED

 

 

 

DATA RATE = 120kbps

 

 

 

 

DATA RATE = 120kbps

 

 

 

 

 

DATA RATE = 120kbps

 

 

 

 

 

RL = 3k

 

 

 

 

 

 

RL = 3k

 

 

 

 

 

 

 

RL = 3kΩ

 

 

(V)

7.0

 

 

 

 

 

(V)

7.0

 

 

 

 

 

 

(V)

7.0

 

 

VCC = 5.5V

 

 

 

 

 

 

 

 

 

 

VCC = 5.5V

 

 

 

 

 

 

-VOL

6.5

 

 

 

VCC = 5.5V

 

-VOL

6.5

 

 

 

 

-VOL

6.5

 

 

 

 

 

 

 

 

 

 

VCC = 5.0V

 

 

 

 

 

 

 

 

 

 

VOH,

 

VCC = 5.0V

 

 

 

VOH,

 

 

 

 

 

 

VOH,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.0

 

 

 

 

 

 

6.0

 

 

 

 

 

 

 

6.0

 

VCC = 5.0V

 

 

 

 

5.5

 

VCC = 4.5V

 

 

 

 

5.5

VCC = 4.5V

 

 

 

 

 

5.5

VCC = 4.5V

 

 

 

 

 

 

 

 

 

 

5.0

 

 

 

 

 

 

 

 

 

 

5.0

 

 

 

 

 

 

1000

2000

3000

4000

5000

 

5.0

 

 

 

 

 

 

0

1000

2000

3000

4000

5000

 

0

 

0

1000

2000

3000

4000

5000

LOAD CAPACITANCE (pF)

LOAD CAPACITANCE (pF)

LOAD CAPACITANCE (pF)

VOH, -VOL (V)

MAX211E/MAX213E

TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE

8.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-TOC4

 

 

 

 

ALL

TRANSMITTERS

 

 

LOADED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX202E

7.5

 

 

 

 

 

 

DATA

RATE =

120kbps

 

 

 

 

 

 

 

 

RL = 3kΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC = 5.5V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.0

 

VCC

= 4.5V

 

 

 

 

 

 

 

VCC = 5.0V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1000

2000

3000

 

4000

 

5000

 

 

 

 

LOAD CAPACITANCE (pF)

 

 

SLEW RATE ( V/μs)

MAX211E/MAX213E/MAX241E TRANSMITTER SLEW RATE vs. LOAD CAPACITANCE

30

 

 

 

 

 

 

 

-TOC5

 

 

ALL

TRANSMITTERS

LOADED

 

 

 

 

 

 

MAX202E

25

 

 

DATA

 

RATE =

120kbps

 

 

 

 

RL = 3kΩ

 

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-SLEW RATE

 

 

5

 

 

 

 

 

 

 

 

 

 

+SLEW RATE

 

 

 

 

0

0

1000

2000

3000

4000

5000

LOAD CAPACITANCE (pF)

4 _______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers

____________________________Typical Operating Characteristics (continued)

(Typical Operating Circuits, VCC = +5V, TA = +25°C, unless otherwise noted.)

 

 

 

MAX202E/MAX203E/MAX232E

 

 

 

 

 

 

MAX205E–MAX208E

 

 

 

 

 

 

 

 

MAX205E–MAX208E

 

 

 

 

 

 

 

 

 

TRANSMITTER OUTPUT VOLTAGE

 

 

 

 

 

TRANSMITTER SLEW RATE

 

 

 

 

 

TRANSMITTER SLEW RATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

vs. LOAD CAPACITANCE

 

 

 

 

 

 

vs. LOAD CAPACITANCE

 

 

 

 

 

vs. LOAD CAPACITANCE

 

 

 

 

 

 

 

20

 

 

 

 

 

 

14

 

 

 

 

7.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX202E-TOC6

 

5.0

 

 

 

 

 

 

 

 

 

 

 

120kbps

MAX202ETOC-07

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX202ETOC-08

 

 

 

 

 

ALL

TRANSMITTERS

 

 

LOADED

 

 

 

 

 

 

 

 

 

 

 

 

20kbps

 

 

18

 

 

VCC

=

+4.5V,

RL

= 3k

Ω

 

 

 

 

 

 

 

 

 

DATA RATE =

120kbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

TRANSMITTER

AT

FULL

DATA RATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

 

 

 

4

TRANSMITTERS

AT

1/8

DATA RATE

 

 

 

 

 

 

 

 

 

 

RL = 3k

Ω

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUTVOLTAGE (V)

 

 

 

 

 

 

 

240kbps

 

 

 

 

 

 

 

RATESLEW(V/μs)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RATESLEW( V/μs)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC =

+4.5V,

RL

= 3k

 

Ω

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1 TRANSMITTER

AT

 

FULL

DATA

RATE

 

 

 

10

 

 

 

 

 

RISE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 TRANSMITTERS

AT 1/8

DATA RATE

 

 

 

 

 

FALL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-SLEW RATE

 

 

 

 

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

240kbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

 

 

+SLEW RATE

 

 

 

 

 

 

 

 

 

 

-5.0

 

 

 

 

 

 

 

120kbps

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-7.5

 

 

 

 

 

 

 

 

 

20kbps

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1000

2000

 

3000

 

4000

5000

 

0

1000

2000

3000

4000

 

 

5000

0

1000

 

2000

3000

4000

5000

 

 

 

 

LOAD CAPACITANCE (pF)

 

 

 

 

 

 

LOAD CAPACITANCE (pF)

 

 

 

 

 

 

 

LOAD CAPACITANCE (pF)

 

 

 

 

 

 

MAX205E–MAX208E

 

 

 

 

 

 

MAX205E–MAX208E

 

 

 

 

 

 

 

 

 

SUPPLY CURRENT

 

 

 

 

 

 

 

 

 

 

 

 

 

vs. LOAD CAPACITANCE

 

 

 

10.0

 

OUTPUT VOLTAGE vs. DATA RATE

 

50

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOC-09

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOC-10

 

 

 

 

 

 

 

 

 

 

 

240kbps

 

 

MAX202E

 

7.5

 

 

 

 

 

 

 

V+

 

 

 

 

 

 

 

 

 

 

MAX202E

CURRENTSUPPLY(mA)

45

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGEOUTPUT(V)

 

 

 

 

V

OUT+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

V

OUT-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

120kbps

 

 

 

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC

= +4.5V,

RL =

3kΩ

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

1 TRANSMITTER

AT FULL DATA RATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 TRANSMITTERS AT 1/8 DATA RATE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

 

 

 

 

 

 

 

 

 

20kbps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VCC =

+4.5V,

RL

= 3k

Ω

 

 

 

 

 

 

-5.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 TRANSMITTER

AT

FULL

DATA

RATE

 

 

 

 

-7.5

 

 

 

 

 

 

 

V-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

4 TRANSMITTERS

AT 1/8

DATA RATE

 

 

 

 

-10.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

1000

2000

3000

4000

 

5000

 

0

30

60

90

120

150

180

210

240

 

 

 

 

LOAD CAPACITANCE (pF)

 

 

 

 

 

 

 

DATA RATE (kbps)

 

 

 

 

MAX232E/MAX241E MAX213E,–MAX202E

_______________________________________________________________________________________ 5

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

_____________________________________________________________Pin Descriptions

MAX202E/MAX232E

 

 

PIN

 

NAME

 

FUNCTION

 

 

 

 

 

 

DIP/SO

 

LCC

 

 

 

 

 

 

 

 

 

 

1,

3

 

2,

4

C1+, C1-

Terminals for positive charge-pump capacitor

 

 

 

 

 

 

 

2

 

 

3

 

V+

+2VCC voltage generated by the charge pump

4,

5

 

5,

7

C2+, C2-

Terminals for negative charge-pump capacitor

 

 

 

 

 

 

 

6

 

 

8

 

V-

-2VCC voltage generated by the charge pump

7, 14

 

9, 18

T_OUT

RS-232

Driver Outputs

 

 

 

 

 

 

 

8, 13

 

10,

17

R_IN

RS-232

Receiver Outputs

 

 

 

 

 

 

 

9, 12

 

12,

15

R_OUT

RS-232

Receiver Outputs

 

 

 

 

 

 

 

 

10,

11

 

13,

14

T_IN

RS-232

Driver Inputs

 

 

 

 

 

15

 

19

GND

Ground

 

 

 

 

 

16

 

20

VCC

+4.5V to +5.5V Supply-Voltage Input

__

 

1, 6, 11, 16

N.C.

No Connect—not internally connected.

 

 

 

 

 

 

 

 

MAX203E

 

 

PIN

 

NAME

 

FUNCTION

DIP

 

SO

 

 

 

 

 

1,

2

 

1,

2

T_IN

RS-232

Driver Inputs

 

 

 

 

 

 

3, 20

 

3, 20

R_OUT

RS-232

Receiver Outputs

 

 

 

 

 

 

4,19

 

4, 19

R_IN

RS-232

Receiver Inputs

 

 

 

 

 

 

 

 

 

 

 

 

5,18

 

5, 18

T_OUT

RS-232

Transmitter Outputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6,

9

 

6,

9

GND

Ground

 

 

 

 

 

 

 

7

 

 

7

 

VCC

+4.5V to +5.5V Supply-Voltage Input

8

 

 

13

C1+

Make no connection to this pin.

 

 

 

 

 

 

 

10,

16

 

11,

16

C2-

Connect pins together.

 

 

 

 

 

 

 

12,

17

 

10,

17

V-

-2VCC voltage generated by the charge pump. Connect pins together.

13

 

14

C1-

Make no connection to this pin.

 

 

 

 

 

 

14

 

8

 

V+

+2VCC voltage generated by the charge pump

11,

15

 

12,

15

C2+

Connect pins together.

 

 

 

 

 

 

 

 

MAX205E

PIN

NAME

 

FUNCTION

1–4, 19

T_OUT

RS-232

Driver Outputs

 

 

 

 

5, 10, 13, 18, 24

R_IN

RS-232

Receiver Inputs

 

 

 

6, 9, 14, 17, 23

R_OUT

TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

 

 

 

7, 8, 15, 16, 22

T_IN

TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

 

 

 

 

11

GND

Ground

 

 

 

 

12

VCC

+4.75V to +5.25V Supply Voltage

20

EN

Receiver Enable—active low

 

 

 

21

SHDN

Shutdown Control—active high

6 _______________________________________________________________________________________

±15kV ESD-Protected, +5V RS-232 Transceivers

________________________________________________Pin Descriptions (continued)

MAX206E

PIN

NAME

FUNCTION

1, 2, 3, 24

T_OUT

RS-232 Driver Outputs

 

 

 

4, 16, 23

R_IN

RS-232 Receiver Inputs

 

 

 

5, 17, 22

R_OUT

TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

 

 

 

6, 7, 18, 19

T_IN

TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

 

 

 

8

GND

Ground

 

 

 

9

VCC

+4.5V to +5.5V Supply Voltage

10, 12

C1+, C1-

Terminals for positive charge-pump capacitor

 

 

 

11

V+

+2VCC generated by the charge pump

13, 14

C2+, C2-

Terminals for negative charge-pump capacitor

 

 

 

15

V-

-2VCC generated by the charge pump

 

 

 

20

EN

Receiver Enable—active low

 

 

 

21

SHDN

Shutdown Control—active high

 

 

 

MAX207E

PIN

NAME

FUNCTION

1, 2, 3, 20, 24

T_OUT

RS-232 Driver Outputs

 

 

 

4, 16, 23

R_IN

RS-232 Receiver Inputs

 

 

 

5, 17, 22

R_OUT

TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

 

 

 

6, 7, 18, 19, 21

T_IN

TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

 

 

 

8

GND

Ground

 

 

 

9

VCC

+4.75V to +5.25V Supply Voltage

10, 12

C1+, C1-

Terminals for positive charge-pump capacitor

 

 

 

11

V+

+2VCC generated by the charge pump

13, 14

C2+, C2-

Terminals for negative charge-pump capacitor

15

V-

-2VCC generated by the charge pump

 

 

 

MAX208E

PIN

NAME

FUNCTION

1, 2, 20, 24

T_OUT

RS-232 Driver Outputs

 

 

 

3, 7, 16, 23

R_IN

RS-232 Receiver Inputs

 

 

 

4, 6, 17, 22

R_OUT

TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

 

 

 

5, 18, 19, 21

T_IN

TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

8

GND

Ground

 

 

 

9

VCC

+4.5V to +5.5V Supply Voltage

10, 12

C1+, C1-

Terminals for positive charge-pump capacitor

 

 

 

11

V+

+2VCC generated by the charge pump

13, 14

C2+, C2-

Terminals for negative charge-pump capacitor

 

 

 

15

V-

-2VCC generated by the charge pump

 

 

 

MAX232E/MAX241E MAX213E,–MAX202E

_______________________________________________________________________________________ 7

±15kV ESD-Protected, +5V RS-232 Transceivers

MAX202E–MAX213E, MAX232E/MAX241E

________________________________________________Pin Descriptions (continued)

MAX211E/MAX213E/MAX241E

PIN

NAME

FUNCTION

1, 2, 3, 28

T_OUT

RS-232 Driver Outputs

4, 9, 18, 23, 27

R_IN

RS-232 Receiver Inputs

 

 

 

5, 8, 19, 22, 26

R_OUT

TTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and R5 are active in shutdown

mode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown.

 

 

 

 

 

6, 7, 20, 21

T_IN

TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pull-ups to VCC.

 

 

 

10

GND

Ground

 

 

 

11

VCC

+4.5V to +5.5V Supply Voltage

12, 14

C1+, C1-

Terminals for positive charge-pump capacitor

 

 

 

13

V+

+2VCC voltage generated by the charge pump

15, 16

C2+, C2-

Terminals for negative charge-pump capacitor

 

 

 

17

V-

-2VCC voltage generated by the charge pump

24

EN

Receiver Enable—active low (MAX211E, MAX241E)

 

 

EN

Receiver Enable—active high (MAX213E)

 

 

 

 

25

SHDN

Shutdown Control—active high (MAX211E, MAX241E)

 

 

SHDN

Shutdown Control—active low (MAX213E)

 

 

 

 

+5.5V

ISHDN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EN

+3V

 

 

 

0.1µF*

 

 

 

 

0.1µF*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT

 

 

 

 

 

C1+

 

VCC

V+

 

 

 

 

0V

 

 

 

 

 

 

 

 

 

OUTPUT ENABLE TIME

0.1µF*

 

 

 

 

0.1µF*

 

 

 

 

C1-

 

 

 

 

 

 

 

 

 

 

 

MAX206E

 

 

 

 

 

+3.5V

 

 

 

 

V-

 

 

 

 

 

 

 

C2+

VCC

MAX211E

 

 

 

RECEIVER

 

+0.8V

 

0.1µF*

 

 

MAX213E

 

 

 

OUTPUT

 

 

C2-

 

 

 

 

 

 

 

 

 

MAX241E

 

 

 

CL

= 150pF

 

 

 

 

 

400k T1 TO T5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+3V

 

+5.5V

T_IN

 

T_OUT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R1 TO R5

 

3k

 

 

EN

0V

 

 

 

 

R_IN

+5.5V

NOTE:

INPUT

 

OUTPUT DISABLE TIME

 

R_OUT

 

 

 

 

 

 

 

 

POLARITY OF EN

 

 

 

 

0V OR +5.5V

EN (EN)

 

5k

 

IS REVERSED

RECEIVER

VOH

VOH - 0.1V

 

DRIVE

 

 

 

 

FOR THE

 

 

+2.5V

 

 

 

 

 

 

 

SHDN (SHDN)

 

 

MAX213E

OUTPUTS

VOL

RL = 1kΩ

+5.5V (0V)

 

 

 

 

 

VOL + 0.1V

 

 

 

 

 

 

 

 

 

 

 

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( ) ARE FOR MAX213E

 

 

 

 

CAPACITORS MAY BE

 

 

 

 

 

 

* 1µF FOR MAX241E

 

 

 

POLARIZED OR UNPOLARIZED

 

 

 

 

 

 

Figure 1. Shutdown-Current Test Circuit (MAX206E,

Figure 2. Receiver Output Enable and Disable Timing

MAX211E/MAX213E/MAX241E)

(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)

8 _______________________________________________________________________________________

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