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| 型号： | SI9243AEY-T1 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 4/7页 |
| 文件大小： | 0K |
| 描述： | IC SINGLE-ENDED BUS TXRX 8SOIC |
| 标准包装： | 2,500 |
| 类型： | 总线收发器 |
| 驱动器/接收器数： | 1/2 |
| 规程： | ISO 9141 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC（窄型） |
| 包装： | * |
www.vishay.com
4
Document Number: 70788
S11-0975-Rev. F, 16-May-11
Vishay Siliconix
Si9243A
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
PIN CONFIGURATION
FUNCTIONAL DESCRIPTION
The Si9243AEY can be either in transmit or receive mode
and it contains over temperature, and short circuit VBAT fault
detection circuits.
The voltage on the K and L pins are internally compared to
VBAT/2. If the voltage on the K or L pin is less than VBAT/2 then
RXK or RXL output will be "low". If the voltage on the K or L
pin is greater than VBAT/2 then RXK or RXL output will be
"high".
In order to be in transmit mode, TX must be set "low". The TX
signal is then internally inverted and turns the MOSFET on,
causing the K pin to be "low". In transmit mode, the
processor monitors the RXK and TX. When the two mirror
each other there is no fault. In the event of over temperature,
or short circuit to VBAT, the Si9243AEY will turn off the K
output to protect the IC. The K pin will stay in high impedance
and RXK will follow the K pin. The fault will be reset when TX
is toggled high. RXK, RXL and TX pins have internal pull up
resistor to VDD while K and L pins have internal pull down
resistors. When any one of the TX, VBAT or GND pins is open
the K output is off.
When the TX pin is set "high" the Si9243AEY is in receive
mode and the internal MOSFET is turned off. RXL and RXK
outputs will follow L and K inputs respectively.
1
2
3
4
5
6
7
8
Top View
Narrow Body
RXL
RXK
TX
VBAT
K
GND
SO Package
VDD
L
ORDERING INFORMATION
Part Number
Temperature Range
Si9243AEY-T1
- 40 to 125 °C
Si9243AEY-T1-E3 (Lead (Pb)-free)
PIN DESCRIPTION
Pin Number
Symbol
Description
1
RXK
K Receiver, Output
2
RXL
L Receiver, Output
3
VDD
Positive Power Supply
4
TX
Transmit, Input
5
GND
Ground Connection
6
K
K Transmit/Receive, Bidirectional
7
VBAT
Battery Power Supply
8
L
L Transmit, Input
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相关代理商/技术参数 |
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