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參數(shù)資料
| 型號： | SP3223 |
| 元件分類： | RS-232 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | 5V的高速RS - 232收發(fā)器與0.1uF電容 |
| 文件頁數(shù)： | 11/23頁 |
| 文件大?。?/td> | 165K |
| 代理商： | SP3223 |
11
Rev. 6/30/03
SP3223 +3.0V to +5.5V RS-232 Transceivers
Copyright 2003 Sipex Corporation
Figure 12
shows a loopback test circuit used to
test the RS-232 Drivers.
Figure 13
shows the test
results of the loopback circuit with all three
drivers active (SP3243) at 120Kbps with typical
RS-232 loads in parallel with 1000pF capacitors.
Figure 14
shows the test results where one driver
was active at 235Kbps and all three drivers
loaded with an RS-232 receiver in parallel with
a 1000pF capacitor. A solid RS-232 data trans-
Table 2. SHUTDOWN and EN Truth Tables
Note: In AUTO ON-LINE
Mode where ONLINE =
GND and SHUTDOWN = V
, the device will shut down
if there is no activity present at the Receiver inputs.
Figure 12. Loopback Test Circuit for RS-232 Driver
Data Transmission Rates
mission rate of 120Kbps provides compatibility
with many designs in personal computer periph-
erals and LAN applications.
Receivers
The receivers convert
±
5.0V EIA/TIA-232
levels to TTL or CMOS logic output levels.
Receivers have an inverting output that can be
disabled by using the EN pin.
Figure 13. Loopback Test Circuit Result at 120Kbps
(All Drivers Fully Loaded)
Figure 14. Loopback Test Circuit result at 235Kbps
(All Drivers Fully Loaded)
SP3223
SP3243
2
4
6
5
3
7
19
GND
T
1
IN
T
X
IN
C1+
C1-
C2+
C2-
V+
V-
V
CC
0.1
μ
F
0.1
μ
F
0.1
μ
F
+
C2
C5
C1
+
+
C3
C4
+
+
0.1
μ
F
0.1
μ
F
TTINPUTS
+3V to +5V
18
SHUTDOWN
20
5K
R
1
OUT
5K
R
X
IN
R
X
OUT
OUTPUTS
EN
1
ONLINE
11STATUS
14
R
1
IN
T
X
OUT
T
1
OUT
V
CC
To μP Supervisor
Circuit
1000pF
1000pF
3
2
2
3
P
S
:
E
C
I
V
E
D
N
W
O
D
T
U
H
S
N
E
T
X
T
U
O
R
X
T
U
O
0
0
Z
h
g
H
e
v
A
0
1
Z
h
g
H
Z
h
g
H
1
0
e
v
A
e
v
A
1
1
e
v
A
Z
h
g
H
3
4
2
3
P
S
:
E
C
I
V
E
D
N
W
O
D
T
U
H
S
T
X
T
U
O
R
X
T
U
O
R
2
T
U
O
0
Z
h
g
H
Z
h
g
H
e
v
A
1
e
v
A
e
v
A
e
v
A
T1 IN
T1 OUT
R1 OUT
T1 IN
T1 OUT
R1 OUT
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP3223B | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceivers |
| SP3223BCA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceivers |
| SP3223BCP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceivers |
| SP3223BCY | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceivers |
| SP3223BEA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Intelligent +3.0V to +5.5V RS-232 Transceivers |
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