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參數(shù)資料
| 型號： | SP304ET |
| 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)： | 6/12頁 |
| 文件大小： | 143K |
| 代理商： | SP304ET |
Corporation
SIGNAL PROCESSING EXCELLENCE
82
supplying
±
2V minimum into a 100
load.
Short circuit protection for the RS-422 operat-
ing mode is the same as in the RS-232 mode. The
driver outputs can be shorted to ground for an
infinite duration, with a maximum current of
±
100mA.
The RS-422 receivers accept differential signals
at a 1Mbps rate, and translate them to a non-
inverted TTL output. The receivers are speci-
fied with a
±
15V differential input voltage,
which means that to operate normally, the dif-
ference betweeen the voltages at the inputs
cannot exceed
±
15V. The common mode volt-
age is specified as
±
7V. This identifies the
midpoint of the range about which the differen-
tial input must lie so that the receiver can detect
a change of state. Within this
±
7V range, the
receivers will recognize a change in state with a
±
200mV differential threshold voltage. Since
the RS-232 and RS-422 inputs are shared, all
receiver inputs are protected to
±
30V to guard
against inadvertently applying an RS-232 signal
to an input that is configured for RS-422.
Figure 2
shows a typical circuit for the
SP304
.
In this case the
SP304
is shown configured for
one (1) duplex RS-422 and two (2) duplex
RS-232 communication paths.
CONFIGURING THE SP304
Figures 3, 4
and
5
show the various combina-
tions of simultaneous RS-232 and RS-422
operation that can be achieved with the
SP304
.
Each of these configurations are software
selectable by logic level on the SELECT A and
SELECT B control lines. Configuration can be
changed “on-the-fly”.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP3050 | 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:Low Capacitance Diode Array for ESD and Surge Protection |
| SP3050_11 | 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:TVS Diode Arrays |
| SP3050-04HTG | 功能描述:TVS二極管陣列 4 Ch 20KV 5V TVS Diode Array SOT23-6 RoHS:否 制造商:Littelfuse 極性: 通道:4 Channels 擊穿電壓: 鉗位電壓:11.5 V 工作電壓:2.5 V 峰值浪涌電流:20 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 系列: 最小工作溫度:- 40 C 最大工作溫度:+ 85 C |
| SP3050-04HTG | 制造商:Littelfuse 功能描述:Diode Array 制造商:Littelfuse 功能描述:TVS DIODE ARRAY, 6V, SOT-23 |
| SP3051 | 制造商:LITTELFUSE 制造商全稱:Littelfuse 功能描述:The SP3051 integrates low capacitance rail-to-rail diodes with an additional zener diode to protect each I/O pin against ESD and high surge events. |
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