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參數(shù)資料
| 型號(hào)： | SP3223B |
| 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)： | 11/24頁 |
| 文件大小： | 180K |
| 代理商： | SP3223B |
11
Rev. 6/30/03
SP3223B/3243B +3.0V to +5.5V RS-232 Transceivers
Copyright 2003 Sipex Corporation
The SP3223B and SP3243B drivers can main-
tain high data rates up to 250kbps fully loaded.
Figure 17
.
shows a loopback test circuit used to
test the SP3243B RS-232 Drivers.
Figure 18
shows the test results of the loopback circuit with
all three drivers active at 120kbps with typical
RS-232 loads in parallel with 1000pF capacitors.
Figure 19
shows the test results where one driver
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 17. Loopback Test Circuit for RS-232 Driver
Data Transmission Rates
was active at 250kbps and all three drivers loaded
with an RS-232 receiver in parallel with a 1000pF
capacitor. A solid RS-232 data transmission
rate of 250kbps provides compatibility with many
designs in personal computer peripherals and
LAN applications.
Receivers
The receivers convert
±
5.0V EIA/TIA-232
levels to TTL or CMOS logic output levels. All
receivers have an inverting output that can be
disabled by using the EN pin.
Figure 18. Loopback Test Circuit All Drivers at 120kbps
Figure 19. Loopback Test Circuit One Driver at 250kbps
SP3223B
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
5k
R
1
OUT
5k
R
X
IN
R
X
OUT
OUTPUTS
EN
ONLINE
R
1
IN
T
X
OUT
T
1
OUT
STATUS
V
CC
μ
P Supervisor
To
1000pF
1000pF
DEVICE: SP3223B
SHUTDOWN
EN
T
X
OUT
R
X
OUT
0
0
High Z
Active
0
1
High Z
High Z
1
0
Active
Active
1
1
Active
High Z
DEVICE: SP3243B
SHUTDOWN
T
X
OUT
R
X
OUT
R
2
OUT
0
High Z
High Z
Active
1
Active
Active
Active
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| SP3243EB | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SP3223BEP | 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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