TOIM5232

www.vishay.com

Vishay Semiconductors

Rev. 1.3, 04-Jul-12

5

Document Number: 81749

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

RECOMMENDED APPLICATION CIRCUIT FOR TOIM5232

Application circuit using TFDU4301 with integrated level shifter MAX3232CSE. When used directly with 3 V - or 5 V - logic, the

level shifter can be omitted.

R4

C3

J1

CON9

1

2

3

4

5

6

7

8

9

TFDU4301

C10

C4

Z2

U1

MAX3232CSE

13

8

11

10

1

3

4

5

2

6

12

9

14

7

16

15

R1IN

R2IN

T1IN

T2IN

C+

C1-

C2+

C2-

V+

V-

R1OUT

R2OUT

T1OUT

T2OUT

V

CC

GND

+

C8

External

input

3.6 V max.

optional

TOIM5232

C5

R1

RXD

DTR (RESET)

J2

CON2

1

2

Vcc

U3

2

4

6

8

5

3

1

7

Cathode

RXD

Vcc1

GND

SD

TXD

Anode

V

log

+

+

*) NC: 6, 8, 11, 15, 20

U2

18

19

1

2

3

4

5

7

9

16

14

13

12

*)

10

17

RESET

BR/D

RD_232

TD_232

V

CC_SD

X1

X2

GND

TD_LED

RD_IR

TD_IR

S2

S1

NC

RD_LED

V

CC

R2

C11

RTS (BR/D)

C7

C6

TXD

C9

Y1

C1

+

IRED

Z1

R3

+

IRED

+ C2

20799

RECOMMENDED APPLICATION CIRCUIT COMPONENTS

COMPONENT

RECOMMENDED VALUE

VISHAY PART NUMBER

1.

C1

100 nF

VJ 1206 Y 104 J XXMT

2.

C2

10 μF, 16 V

293D 106X9 016B 2T

3.

C3

100 nF

VJ 1206 Y 104 J XXMT

4.

C4

100 nF

VJ 1206 Y 104 J XXMT

5.

C5

100 nF

VJ 1206 Y 104 J XXMT

6.

C6

100 nF

VJ 1206 Y 104 J XXMT

7.

C7

1 μF, 16 V

293D 105X9 016A 2T

8.

C8

22 pF

VJ 1206 A 220 J XAMT

9.

C9

22 pF

VJ 1206 A 220 J XAMT

10.

C10

6.8 μF, 16 V (optional)

293D 685X9 016B 2T

11.

C11

100 nF

VJ 1206 Y 104 J XXMT

12.

Z1

3.6 V

BZT55C3V6

13.

Z2

3.6 V

BZT55C3V6

14.

R1

5.6 k



CRCW-1206-5601-F-RT1

15.

R2

100 k



CRCW-1206-1003-F-RT1

16.

R3

47



CRCW-1206-47R0-F-RT1

17.

R4

27

 (for reduced current only)

CRCW-1206-27R0-F-RT1

18.

Y1

3.686400 MHz

XT49S - 20 - 3.686400M

19.

U1

MAX 3232CSE

MAXIM MAX 3232CSE

20.

U2

TOIM5232

21.

U3

TFDU4301

22.

J1

9 pin - connector

Cannon

23.

J2

Power connector

Philmore PHI 211B