ZHCSNJ5E
October 2005 – March 2021
PCA9545A
PRODUCTION DATA
1
特性
2
应用
3
说明
4
Revision History
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
Switching Characteristics
6.8
Interrupt and Reset Timing Requirements
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.4
Device Functional Modes
8.4.1
RESET Input
8.4.1.1
RESET Errata
8.4.1.1.1
23
8.4.1.1.2
24
8.4.2
Power-On Reset
8.5
Programming
8.5.1
I2C Interface
8.6
Control Register
8.6.1
Device Address
8.6.2
Control Register Description
8.6.3
Control Register Definition
8.6.4
Interrupt Handling
9
Application Information Disclaimer
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
封装选项
机械数据 (封装 | 引脚)
DW|20
MPDS173B
PW|20
MPDS362A
RGY|20
MPQF116H
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcsnj5e_oa
zhcsnj5e_pm
7
Parameter Measurement Information
C
L
includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
= 30 ns.
The outputs are measured one at a time, with one transition per measurement.
Figure 7-1
I
2
C Interface Load Circuit, Byte Descriptions, and Voltage Waveforms
Figure 7-2
Reset Timing
C
L
includes probe and jig capacitance.
All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z
O
= 50 Ω, t
r
/t
f
= 30 ns.
Figure 7-3
Interrupt Load Circuit and Voltage Waveforms