包装信息 (1)
支持信息 (1)
-
Reflow Soldering Profile[REFLOW_SOLDERING_PROFILE]
数据手册 (1)
-
Fast dual bidirectional bus buffer[PCA9521]
收到完整的详细信息。 请参阅 eCad 文件中的产品足迹等。
紧凑列表
Fast dual bidirectional bus buffer
- 本页面包含有关样品阶段产品的信息。此处的规格和信息如有更改，恕不另行通知。如需了解其他信息，请联系支持人员或您的销售代表。
The PCA9521 is a monolithic bipolar integrated circuit for bus buffering in applications including I²C-bus, SMBus, PMBus, and other systems based on similar principles.
The buffer extends the bus load limit by buffering both the SCL and SDA lines. It supports up to 400 pF loads on each side of the buffer at 400 kHz. Higher capacitance is supported at lower speeds, and lower capacitance at higher speeds up to 1 MHz.
The enable function allows sections of the bus to be isolated. Individual parts of the system can be brought on-line successively. This means a controlled start-up using a diverse range of components, operating speeds and loads is easily achieved. Systems employing removable components on a back-plane (for example, telecommunications racks) can use the enable pin and the high-impedance ports on power-down to safely install and remove components in active systems.
Bus level translation between a very wide range of bus voltages, from 1.8 V to 10 V, is supported. This feature provides enormous flexibility in interfacing systems of different technologies.
The operation of the PCA9521 provides one of the fastest response times of such bidirectional buffers, ensuring any glitches (common to other buffers) are kept well within the 50 ns I²C-bus specification. Additionally, it does this without the need for ‘rise-time accelerators’ which, combined with low noise margins, may cause glitches outside of the I²C-bus specification.
文档
快速参考恩智浦 文档类别.
5 文件
5 文件
紧凑列表
包装信息 (1)
支持信息 (1)
-
Reflow Soldering Profile[REFLOW_SOLDERING_PROFILE]
数据手册 (1)
-
Fast dual bidirectional bus buffer[PCA9521]
用户指南 (2)
设计资源
支持
近期查看的产品
There are no recently viewed products to display.
