SP3249EEY-L Datasheet, PDF (6/16 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
SP3249E
24 C1+
23 V+
22 VCC
21 C1-
20 T1IN
19 T2IN
18 T3 IN
17 R1OUT
16 R2OUT
15 T4IN
14 R3OUT
13 T5IN
Figure 4. SP3249E Pinout Configuration
+
C5 0.1µF
24 _C1+
+
C1 0.1µF
21 C1-
1 C2+
+
C2 0.1µF
3 C2-
TTL/CMOS
INPUTS
20 ^T1^IN
19 T₂IN
18 T₃IN
15 T₄IN
13 T₅IN
22
VCC
VCC
V+ ²³
+
C3 0.1µF
SP3249E
V- ⁴
T₁OUT ₅
T₂OUT ₆
T₃OUT ₇
T₄OUT ₁₀
T₅OUT ₁₂
C4 0.1µF
+
RS-232
OUTPUTS
TTL/CMOS
OUTPUTS
17 R₁OUT
16 ^R₂^OUT
14 ^R3^OUT
R₁IN ₈
5kΩ
R₂IN ₉
5kΩ
R₃IN ₁₁
5kΩ
RS-232
INPUTS
GND
2
Figure 5. SP3249E Typical Operating Circuit
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3249E_100_013111