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| 型号： | SP207ECA-L |
| 厂商： | Exar Corporation |
| 文件页数： | 18/19页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 ESD LP 24SSOP |
| 标准包装： | 58 |
| 类型： | 收发器 |
| 驱动器/接收器数： | 5/3 |
| 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： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
Exar Corporation 48720 Kato Road, Fremont CA, 94538 50-668-707 www.exar.com
SP207E_0_052
8
SHuTDOwN MODE
SP211E and SP213E feature a control input
which will shut down the device and reduce
the power supply current to less than 0A,
making the parts ideal for battery–powered
systems. Inshutdownmodethetransmitters
will be tri–stated, the V+output of the charge
pump will discharge to VCC, and the V–output
will discharge to ground. Shutdown will tri-
state all receiver outputs of the
SP211E.
SP213E wAKEuP FuNCTION
On the
SP213E, shutdown will tri-state re-
ceivers -3. Receivers 4 and 5 remain active
to provide a “wake-up” function and may be
used to monitor handshaking and control
inputsforactivity.Withonlytworeceivers
active during shutdown, the
SP213E draws
only 5–0A of supply current.
ManystandardUARTdevicesmaybecon-
figuredtogenerateaninterruptsignalbased
onchangestotheRingIndicate(RI)orother
inputs. A typical application of this function
would be to detect modem activity with the
computer in a power–down mode. The ring
indicator signal from the modem could be
passed through an active receiver in the
SP213E that is itself in the shutdown mode.
The ring indicator signal would propagate
through the
SP213E to the power manage-
ment circuitry of the computer to power up
the microprocessor and the
SP213E driv-
ers. After the supply voltage to the
SP213E
reaches +5.0V, the SHUTDOWN pin can
be disabled, taking the
SP213E out of the
shutdown mode.
All receivers that are active during shutdown
maintain 500mV (typ.) of hysteresis. All
receivers on the
SP213E may be put into
tri-state using the ENABLE pin.
SHuTDOwN CONDITIONS
For complete shutdown to occur and the
10Apowerdraintoberealized,thefollow-
ingconditionsmustbemet:
SP211E:
+5V must be applied to the SD pin
ENABLE must be either Ground, +5.0V or
not connected
the transmitter inputs must be either +5.0V
or not connected
VCC must be +5V
Receiver inputs must be >0V and <+5V
SP213E:
0V must be applied to the SD pin
ENABLE must be either 0V, +5.0V or not
connected
the transmitter inputs must be either +5.0V
or not connected
VCC must be +5V
Receiver inputs must be >0V and <+5V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP207ECA-L/TR | 功能描述:RS-232接口集成电路 +/-15KV 5DRVR/3RCVR RS-232 0-70C 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: |
| SP207ECA-L-TR | 制造商:EXAR 制造商全称:EXAR 功能描述:Low Power, High ESD 5V RS-232 Transceivers |
| SP207ECP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+5V High Performance RS232 Transceivers |
| SP207ECT | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:+5V High Performance RS232 Transceivers |
| SP207ECT-L | 功能描述:RS-232接口集成电路 +/-15KV 5DRVR/3RCVR RS-232 0-70C 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: |
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