参数资料
型号: SP3243EUER-L/TR
厂商: Exar Corporation
文件页数: 6/24页
文件大小: 0K
描述: IC TXRX RS232 INTELLIGENT 32QFN
标准包装: 3,000
类型: 收发器
驱动器/接收器数: 3/5
规程: RS232
电源电压: 3 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 32-VFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 带卷 (TR)
14
Exar Corporation 48720 Kato Road, Fremont CA, 94538 510-668-7017 www.exar.com
SP3243E_102_060611
Figure 19. SP3243E Driver Output Voltages vs. Load
Current per Transmitter
Figure 20. Circuit for the connectivity of the SP3243E with a DB-9 connector
6
4
2
0
-2
-4
-6
Transmitter
Output
Vo
lta
ge
[V
]
Load Current Per Transmitter [mA]
Vout+
Vout-
0.62
0.869
0.939
1.02
1.12
1.23
1.38
1.57
1.82
2.67
3.46
4.93
8.6
The SP3243E driver outputs are able to maintain
voltage under loading of up to 2.5mA per driver,
ensuring sufficient output for mouse-driving ap-
plications.
6
7
8
9
1
2
3
4
5
DB-9
Connector
6. DCE Ready
7. Request to Send
8. Clear to Send
9. Ring Indicator
DB-9 Connector Pins:
1. Received Line Signal Detector
2. Received Data
3. Transmitted Data
4. Data Terminal Ready
5. Signal Ground (Common)
SP3243E
28
24
2
1
27
3
26
5k
GND
C1+
C1-
C2+
C2-
V+
V-
VCC
14
13
12
20
19
18
17
16
15
0.1 F
+
C2
C5
C1
+
C3
C4
+
0.1 F
9
10
11
4
5
6
7
8
To P Supervisor
Circuit
23
22
21
VCC
VCC
25
T1IN
R1OUT
R1IN
T2OUT
R2OUT
T2IN
T3IN
T3OUT
T1OUT
R2IN
R3IN
R4IN
R5IN
R2OUT
R3OUT
R4OUT
R5OUT
ONLINE
SHUTDOWN
STATUS
0
+
VOUT
VOUT -
1
0
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