±15kV ESD-Protected, 2.5V, 1µA, 460kbps,

RS-232 Compatible Transceivers

6

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0

100

300

200

400

500

0

1000

500

1500

2000

2500

3000

TRANSMITTER SKEW vs.

LOAD CAPACITANCE (

LOAD CAPACITANCE (pF)

MAX3316E/MAX3317E

MAX3318E/MAX3319E

T1 TRANSMITTING AT 460kbps

T2 TRANSMITTING AT 20kbps

0

10

5

20

15

25

30

-40

0

20

-20

40

60

80

MAX3318E/MAX3319E

READY TURN-ON TIME

vs. TEMPERATURE

TEMPERATURE (°C)

0

40

120

80

160

200

-40

0

-20

20

40

60

80

MAX3318E/MAX3319E

READY TURN-OFF TIME

vs. TEMPERATURE

TEMPERATURE (°C)

Typical Operating Characteristics (continued)

Pin Description

—

—

MAX3318E

2

3

4

8, 17

7

6

5

19

18

12, 13

10, 15

9, 16

No Connection

Receiver Enable, Active Low

FUNCTION

Positive Terminal of Voltage-Doubler Charge-

Pump Capacitor

+2

Negative Terminal of Voltage-Doubler Charge-

Pump Capacitor

RS-232 Transmitter Outputs

-2

Negative Terminal of Inverting Charge-Pump

Capacitor

Positive Terminal of Inverting Charge-Pump

Capacitor

+2.25V to +3.0V Single-Supply Voltage

Ground

CMOS Transmitter Inputs

CMOS Receiver Outputs

RS-232 Receiver Inputs

—

—

MAX3319E

2

3

4

13

7

6

5

15

14

11

9

8

N.C.

EN

NAME

C1+

V+

C1-

T_OUT

V-

C2-

C2+

GND

T_IN

R_OUT

R_IN

—

1, 10, 11, 20

11, 14

—

1

MAX3316E

MAX3317E

1

2

2

PIN

2

3

3

3

4

4

7, 14

8, 17

8, 17

6

7

7

5

6

6

4

5

5

16

19

19

15

18

18

10, 11

13, 14

12, 13

9, 12

12, 15

10, 15

8, 13

9, 16

9, 16

SSOP

TSSOP