SP3238EEY-L-TR Datasheet, PDF (6/21 Pages) Exar Corporation – Intelligent +3.0V to +5.5V RS-232 Transceiver

C2+ 1
GND 2
C2- 3
V- 4
T1OUT 5
T2OUT 6
T3OUT 7
R1IN 8
R2IN 9
T4OUT 10
R3IN 11
T5OUT 12
ONLINE 13
SHUTDOWN 14
SP3238E
28 C1+
27 V+
26 VCC
25 C1-
24 T1IN
23 T2IN
22 T3 IN
21 R1OUT
20 R2OUT
19 T4IN
18 R3OUT
17 T5IN
16 R1OUT
15 STATUS
Figure 4. SP3238E Pinout Configuration
+
C5 0.1µF
+
28 _C1+
C1 0.1µF
25 C1-
1 C2+
+
C2 0.1µF
3 C2-
TTL/CMOS
INPUTS
24 ^T1^IN
23 T₂IN
22 T₃IN
19 T₄IN
17 T₅IN
26
VCC
VCC
V+ ²⁷
SP3238E
V- ⁴
T₁OUT ₅
T₂OUT ₆
T₃OUT ₇
T₄OUT ₁₀
T₅OUT ₁₂
TTL/CMOS
OUTPUTS
VCC
To µP Supervisor
Circuit
16 ^R₁^OUT
21 R₁OUT
R₁IN ₈
20 ^R₂^OUT
5kΩ
R₂IN ₉
18 ^R3^OUT
5kΩ
R₃IN ₁₁
14 _SHUTDOWN
13 _ONLINE
5kΩ
15 _STATUS
GND
2
+
C3 0.1µF
C4 0.1µF
+
RS-232
OUTPUTS
RS-232
INPUTS
Figure 5. SP3238E Typical Operating Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3238E_100_020111