SP336EEY-0A-EB Datasheet, PDF (5/30 Pages) Exar Corporation – 3.3V / 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER

REV. 1.0.1
PIN DESCRIPTIONS
SP336E
3.3V / 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER
Pin Assignments
PIN NUMBER
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
PIN NAME
T4_In
Mode_1
T4_Out
T3_Out
Vcc
T1_Out
T2_Out
GND
C1+
V+
C2+
C1-
C2-
V-
R1_In
R2_In
R3_In
R4_In
R1_Out
R2_Out
R3_Out
R4_Out
Mode_2
Mode_0
SLEW
T1_In
TYPE
SINGLE ENDED
DESCRIPTION
FULL-DUPLEX
HALF-DUPLEX
I
T4 Driver TTL input.
T3 Driver Enable
T3 Driver Enable
Active High.
Active High, R3 Enable
Active Low.
I
Mode Configuration pin 1.
O
T4 Driver Output.
T3(B) Output.
T3(B) Output,
R3(B) Input.
O
T3 Driver Output.
T3(A) Output.
T3(A) Output,
R3(A) Input.
Pwr
Power Supply Voltage.
O
T1 Driver Output.
T1(A) Output.
T1(A) Output,
R1(A) Input.
O
T2 Driver Output.
T1(B) Output.
T1(B) Output,
R1(B) Input.
Pwr
Ground.
Pmp
Positive terminal of positive flying capacitor.
Pmp
Vdd storage capacitor.
Pmp
Positive terminal of negative flying capacitor.
Pmp
Negative terminal of positive flying capacitor.
Pmp
Negative terminal of negative flying capacitor.
Pmp
Vss storage capacitor.
I
R1 Receiver Input. R1(A) Receiver Input.
High Impedance.
I
R2 Receiver Input. R1(B) Receiver Input. R2 Receiver Input.
I
R3 Receiver Input. R3(A) Receiver Input.
High Impedance.
I
R4 Receiver Input. R3(B) Receiver Input. R4 Receiver Input.
O
R1 Receiver Output.
O
R2 Receiver Output.
High Impedance.
R2 Receiver Output.
O
R3 Receiver Output.
O
R4 Receiver Output.
High Impedance.
R4 Receiver Output.
I
Mode Configuration pin 2.
I
Mode Configuration pin 0.
I _{Slew Rate Control. Logic Low input will limit driver slew from either RS-232}
or RS-485 to 250kbps.
I
T1 Driver Input.
5