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| 型号： | SP202EET-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 14/16页 |
| 文件大小： | 0K |
| 描述： | IC DVR/RCVR RS232 QUAD 16WSOIC |
| 标准包装： | 1,500 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 2/2 |
| 规程： | RS232 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 带卷 (TR) |
| 其它名称： | SP202EET-L/TR-ND |
7
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)668-7000 www.exar.com SP202E,232E,233E, 30E, 32E_0_0603
C
2
+
-
V
CC
C
3
C
4
C
1
+
e-
Phases 1 and 3: Store/Double.
Double charge from C1 onto C2.
C2 is now charged to -2xVcc
+
C
2
+
-
V
CC
C
3
C
4
C
1
+
e-
+
e+
C
2
+
-
V
CC
C
3
C
4
C
1
+
Phase 2 – Vss transfer from C2 to C4.
Meanwhile C1 is charged to Vcc
e-
+
Vss
transfer from C2 to C3.
Meanwhile C1 is charged to Vcc
V
DD
V-
V+
V-
V+
Patented 5,306,954
Phase 4 VDD
Figure . Charge pump phases
DESCRiPTion
ESD ToLERAnCE
The SP202E, 232E, 233E, 30E and 32E
devices incorporates ruggedized ESD cells on
all driver outputs and receiver input pins. The
ESD structure is improved over our previous
family for more rugged applications and envi-
ronments sensitive to electro-static discharges
and associated transients. The improved ESD
tolerance is at least +/-5kV Human Body
Model without damage nor latch-up.
The Human Body Model has been the gener-
ally accepted ESD testing method for semi-
conductors. This method is also specified in
MIL-STD-883, Method 305.7 for ESD testing.
The premise of this ESD test is to simulate
the human body's potential to store electro-
static energy and discharge it to an intergrated
circuit. The simulation is peformed by using a
test model as shown in figure 2. This method
will test the IC's capability to withstand an ESD
transient during normal handling such as in
manufacturing areas where the IC's tend to be
handled frequently.
Figure 2. ESD test circuit for Human Body
Model
CS
RS
SW1
RC
Device
Under
Test
DC Power
Source
SW2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP202R00JLF | 功能描述:线绕电阻器 - 透孔 2 OHM 5% 1W RoHS:否 制造商:Bourns 电阻:10 Ohms 容差:5 % 功率额定值:7 W 温度系数:200 PPM / C 系列:FW 端接类型:Axial 工作温度范围:- 55 C to + 155 C 尺寸:9.5 mm Dia. x 26 mm L 封装:Ammo 产品:Power Resistors Wirewound High Energy |
| SP202R10JLF | 制造商:TT Electronics / IRC 功能描述:SP202R10JLF |
| SP202R20JLF | 制造商:TT Electronics / IRC 功能描述:SP202R20JLF |
| SP202R21KLF | 制造商:TT Electronics / IRC 功能描述:SP202R21KLF |
| SP202R32JLF | 制造商:TT Electronics / IRC 功能描述:SP202R32JLF |
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