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| 型号： | SP3220ECA |
| 元件分类： | 外设及接口 |
| 英文描述： | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 电可擦除可编程逻辑器件 |
| 文件页数： | 13/18页 |
| 文件大小： | 114K |
| 代理商： | SP3220ECA |
13
11/07/02 SP3220E True +3.0 to +5.0V RS-232 Transceivers
Copyright 2000 Sipex Corporation
R
R
C
C
C
C
S
S
R
R
S
S
SW1
SW2
Device
Under
Test
DC Power
Source
S
S
Figure 14. ESD Test Circuit for Human Body Model
R
R
S
R
R
V
add up to 330
f
R
S
and
R
V
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 15. ESD Test Circuit for IEC1000-4-2
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 14
and
15
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.
相关PDF资料 |
PDF描述 |
|---|---|
| SP3220ECT | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP3220ECY | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP3220EET | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP3220EEY | Low Power 5V RS232 Dual Driver/Receiver with 0.1?μF Capacitors; Package: SO; No of Pins: 16; Temperature Range: -40?°C to 85?°C |
| SP3220EEA | LOCATOR TO USE WITH AMT23004DA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SP3220ECA-L | 功能描述:RS-232接口集成电路 RS232 1drvr/1rcvr temp 0C to 70C RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| SP3220ECA-L/TR | 功能描述:RS-232接口集成电路 3V-5.5V RS-232 1-DRV/1-RCV LOW PWR RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: |
| SP3220ECA-LTR | 制造商:EXAR 制造商全称:EXAR 功能描述:3.0V to 5.5V RS-232 Driver/Receiver Pair |
| SP3220ECT | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+3.0V to +5.5V RS-232 Driver/Receiver Pair |
| SP3220ECT-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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