- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385854 > SP3232E True +3.0V to +5.5V RS-232Transceivers(標(biāo)準(zhǔn)+3.0V 至 +5.5V RS-232收發(fā)器（2發(fā)2收）) PDF資料下載
參數(shù)資料
| 型號： | SP3232E |
| 英文描述： | True +3.0V to +5.5V RS-232Transceivers(標(biāo)準(zhǔn)+3.0V 至 +5.5V RS-232收發(fā)器（2發(fā)2收）) |
| 中文描述： | 真正的3.0V至5.5V的RS - 232Transceivers（標(biāo)準(zhǔn)3.0V至5.5V的RS - 232接口收發(fā)器（2發(fā)2收）） |
| 文件頁數(shù)： | 13/19頁 |
| 文件大小： | 174K |
| 代理商： | SP3232E |
13
SP3222E/3232EDS/21 SP3222E/3232E True +3.0 to +5.0V RS-232 Transceivers
Copyright 2000 Sipex Corporation
The Contact Discharge Method applies the ESD
current directly to the EUT. This method was
devised to reduce the unpredictability of the
ESD arc. The discharge current rise time is
constant since the energy is directly transferred
without the air-gap arc. In situations such as
hand held systems, the ESD charge can be
directly discharged to the equipment from a
person already holding the equipment. The
current is transferred on to the keypad or the
serial port of the equipment directly and then
travels through the PCB and finally to the IC.
The circuit models in
Figures 17
and
18
represent the typical ESD testing circuits used
for all three methods. The C
S
is initially charged
with the DC power supply when the first
switch (SW1) is on. Now that the capacitor is
charged, the second switch (SW2) is on while
SW1 switches off. The voltage stored in the
capacitor is then applied through R
S
, the current
limiting resistor, onto the device under test
(DUT). In ESD tests, the SW2 switch is pulsed
so that the device under test receives a duration
of voltage.
R
R
C
C
C
C
S
S
R
R
S
S
SW1
SW2
Device
Under
Test
DC Power
Source
S
S
Figure 17. ESD Test Circuit for Human Body Model
R
f
RS and RV add up to 330
f
or IEC1000-4-2.
Contact-Discharge Module
R
R
V
V
V
R
R
C
C
C
C
S
S
R
R
S
S
SW1
SW2
C
Device
Under
Test
DC Power
Source
S
S
Figure 18. ESD Test Circuit for IEC1000-4-2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP3243E | Intelligent +3.0V to +5.5V RS-232 Transceivers(智能+3.0V 至 +5.5V RS-232收發(fā)器（3發(fā)5收）) |
| SP3483 | 3.3V Low Power Slew Rate Limited Half-Duplex RS-485/RS-422 Transceiver(3.3V,低功耗，轉(zhuǎn)換速率限制，半雙工RS-485/RS-422收發(fā)器) |
| SP3483CN | +3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver |
| SP3483CP | +3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver |
| SP3483EN | +3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP3232EA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3.0V to +5.5V RS-232 Transceivers |
| SP3232EA-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SP3232EB | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3.0V to +5.5V RS-232 Transceivers |
| SP3232EBCA | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:True +3.0V to +5.5V RS-232 Transceivers |
| SP3232EBCA/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:CorporationTrue +3.0V to +5.5V RS-232 Transceivers |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。