ZHCSNJ3I October 2005 – June 2022 PCA9546A
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application Information Disclaimer
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
9.2 Typical Application
A typical application of the PCA9546A will contain anywhere from 1 to 5 separate data pull-up voltages, VDPUX , one for the master device (VDPUM) and one for each of the selectable slave channels (VDPU0 – VDPU3). In the event where the master device and all slave devices operate at the same voltage, then the pass voltage, Vpass = VDPUX. Once the maximum Vpass is known, VCC can be selected easily using Figure 9-2. In an application where voltage translation is necessary, additional design requirements must be considered (See Design Requirements).
Figure 9-1 shows an application in which the PCA9546A can be used.
Figure 9-1 PCA9546A
Typical Application Schematic