SP336E datasheet(5/30 Pages) EXAR

Part #	SP336E

Description	3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER

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Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

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SP336E

5

REV. 1.0.0

3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER

PIN DESCRIPTIONS

Pin Assignments

PIN NUMBER

PIN NAME

TYPE

DESCRIPTION

SINGLE ENDED

FULL-DUPLEX

HALF-DUPLEX

1

T4_In

I

T4 Driver TTL input.

T3 Driver Enable

Active High.

T3 Driver Enable

Active High, R3 Enable

Active Low.

2

Mode_1

I

Mode Configuration pin 1.

3

T4_Out

O

T4 Driver Output.

T3(A) Output.

T3(A) Output,

R3(A) Input.

4

T3_Out

O

T3 Driver Output.

T3(B) Output.

T3(B) Output,

R3(B) Input.

5

Vcc

Pwr

Power Supply Voltage.

6

T1_Out

O

T1 Driver Output.

T1(A) Output.

T1(A) Output,

R1(A) Input.

7

T2_Out

O

T2 Driver Output.

T1(B) Output.

T1(B) Output,

R1(B) Input.

8

GND

Pwr

Ground.

9

C1+

Pmp

Positive terminal of positive flying capacitor.

10

V+

Pmp

Vdd storage capacitor.

11

C2+

Pmp

Positive terminal of negative flying capacitor.

12

C1-

Pmp

Negative terminal of positive flying capacitor.

13

C2-

Pmp

Negative terminal of negative flying capacitor.

14

V-

Pmp

Vss storage capacitor.

15

R1_In

I

R1 Receiver Input.

R1(A) Receiver Input.

High Impedance.

16

R2_In

I

R2 Receiver Input.

R1(B) Receiver Input.

R2 Receiver Input.

17

R3_In

I

R3 Receiver Input.

R3(A) Receiver Input.

High Impedance.

18

R4_In

I

R4 Receiver Input.

R3(B) Receiver Input.

R4 Receiver Input.

19

R1_Out

I

R1 Receiver Output.

20

R2_Out

I

R2 Receiver Output.

High Impedance.

R2 Receiver Output.

21

R3_Out

I

R3 Receiver Output.

22

R4_Out

I

R4 Receiver Output.

High Impedance.

R4 Receiver Output.

23

Mode_2

I

Mode Configuration pin 2.

24

Mode_0

I

Mode Configuration pin 0.

25

SLEW

I

Slew Rate Control. Logic Low input will limit driver slew from either RS-232

or RS-485 to 250kbps.

26

T1_In

I

T1 Driver Input.

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