ZHCSNM0F September 2006 – March 2021 PCA9554A
PRODUCTION DATA
- 1 特性
- 2 說明
- 3 Revision History
- 4 Description (Continued)
- 5 Pin Configuration And Functions
- 6 Specifications
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Application Information Disclaimer
- 10Power Supply Recommendations
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
封裝選項
機械數據 (封裝 | 引腳)
散熱焊盤機械數據 (封裝 | 引腳)
訂購信息
8.3.2.4.1 Writes
Data is transmitted to the PCA9554A by sending the device address and setting the least-significant bit to a logic 0 (see Figure 8-6 for device address). The command byte is sent after the address and determines which register receives the data that follows the command byte (see Figure 8-8 and Figure 8-9). There is no limitation on the number of data bytes sent in one write transmission.
Figure 8-8 Write To Output Port Register
Figure 8-9 Write To Configuration Or Polarity Inversion Registers