SP3243EET-L Exar Corporation, SP3243EET-L Datasheet - Page 14

• Manufacturer Part Number: SP3243EET-L
• Description: IC TXRX RS232 INTELLIGNT 28WSOIC
• Manufacturer: Exar Corporation
• Type: Transceiverr

Specifications of SP3243EET-L

• Package / Case: 28-SOIC (0.300", 7.50mm Width)
• Number Of Drivers/receivers: 3/5
• Protocol: RS232
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Function: Transceiver
• Mounting Style: SMD/SMT
• Supply Current: 1 uA
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Logic Type: RS-232 Transceivers
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 1016-1122-5

Figure 26. SP3243 Driver Output Voltages vs. Load
Current per Transmitter
Date: 2/05/06
Figure 27. Circuit for the connectivity of the SP3243 with a DB-9 connector
-2
-4
-6
6
4
2
0
Load Current Per Transmitter [mA]
To μP Supervisor
C2
C1
C5
DB-9 Connector Pins:
1. Received Line Signal Detector
2. Received Data
3. Transmitted Data
4. Data Terminal Ready
5. Signal Ground (Common)
Circuit
+
+
+
0.1μF
0.1μF
0.1μF
V
CC
12
16
22
28
24
14
13
20
19
18
17
15
23
21
1
2
C1+
C1-
C2+
C2-
R
T
T
T
R
R
R
R
SHUTDOWN
ONLINE
STATUS
R
SP3243 +3.0V to +5.5V RS-232 Transceivers
1
2
3
1
2
2
3
4
5
IN
IN
IN
OUT
OUT
OUT
OUT
OUT
OUT
Vout+
Vout-
SP3243
V
GND
CC
26
25
5KΩ
5KΩ
5KΩ
5KΩ
5KΩ
T
T
T
V
14
1
2
3
R
R
R
6. DCE Ready
7. Request to Send
8. Clear to Send
9. Ring Indicator
CC
R
R
OUT
OUT
OUT
3
4
5
V+
1
2
V-
IN
IN
IN
IN
IN
The SP3243 driver outputs are able to maintain
voltage under loading of up to 2.5mA per driver,
ensuring sufficient output for mouse-driving ap-
plications.
10
11
4
5
6
7
8
27
3
9
C3
C4
+
+
0.1μF
0.1μF
0
0
1
8
9
6
7
Connector
DB-9
© Copyright 2006 Sipex Corporation
1
2
3
4
5
V
V
OUT
OUT
+
-