ZHCSJZ0
June 2019
TUSB8042A
PRODUCTION DATA.
1
特性
2
应用
3
说明
图
4
修订历史记录
5
说明 （续）
6
Pin Configuration and Functions
Pin Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Battery Charging Features
8.3.2
USB Power Management
8.3.3
One Time Programmable (OTP) Configuration
8.3.4
Clock Generation
8.3.5
Crystal Requirements
8.3.6
Input Clock Requirements
8.3.7
Power-Up and Reset
8.4
Device Functional Modes
8.4.1
External Configuration Interface
8.4.2
I2C EEPROM Operation
8.4.3
Port Configuration
8.4.4
SMBus Slave Operation
8.5
Register Maps
8.5.1
Configuration Registers
8.5.2
ROM Signature Register
Table 6.
Bit Descriptions – ROM Signature Register
8.5.3
Vendor ID LSB Register
Table 7.
Bit Descriptions – Vendor ID LSB Register
8.5.4
Vendor ID MSB Register
Table 8.
Bit Descriptions – Vendor ID MSB Register
8.5.5
Product ID LSB Register
Table 9.
Bit Descriptions – Product ID LSB Register
8.5.6
Product ID MSB Register
Table 10.
Bit Descriptions – Product ID MSB Register
8.5.7
Device Configuration Register
Table 11.
Bit Descriptions – Device Configuration Register
8.5.8
Battery Charging Support Register
Table 12.
Bit Descriptions – Battery Charging Support Register
8.5.9
Device Removable Configuration Register
Table 13.
Bit Descriptions – Device Removable Configuration Register
8.5.10
Port Used Configuration Register
Table 14.
Bit Descriptions – Port Used Configuration Register
8.5.11
Device Configuration Register 2
Table 15.
Bit Descriptions – Device Configuration Register 2
8.5.12
USB 2.0 Port Polarity Control Register
Table 16.
Bit Descriptions – USB 2.0 Port Polarity Control Register
8.5.13
UUID Registers
Table 17.
Bit Descriptions – UUID Byte N Register
8.5.14
Language ID LSB Register
Table 18.
Bit Descriptions – Language ID LSB Register
8.5.15
Language ID MSB Register
Table 19.
Bit Descriptions – Language ID MSB Register
8.5.16
Serial Number String Length Register
Table 20.
Bit Descriptions – Serial Number String Length Register
8.5.17
Manufacturer String Length Register
Table 21.
Bit Descriptions – Manufacturer String Length Register
8.5.18
Product String Length Register
Table 22.
Bit Descriptions – Product String Length Register
8.5.19
Device Configuration Register 3
Table 23.
Bit Descriptions – Device Configuration Register 3
8.5.20
USB 2.0 Only Port Register
Table 24.
Bit Descriptions – USB 2.0 Only Port Register
8.5.21
Serial Number String Registers
Table 25.
Bit Descriptions – Serial Number Registers
8.5.22
Manufacturer String Registers
Table 26.
Bit Descriptions – Manufacturer String Registers
8.5.23
Product String Registers
Table 27.
Bit Descriptions – Product String Byte N Register
8.5.24
Additional Feature Configuration Register
Table 28.
Bit Descriptions – Additional Feature Configuration Register
8.5.25
SMBus Device Status and Command Register
Table 29.
Bit Descriptions – SMBus Device Status and Command Register
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Discrete USB Hub Product
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Upstream Port Implementation
9.2.1.2.2
Downstream Port 1 Implementation
9.2.1.2.3
Downstream Port 2 Implementation
9.2.1.2.4
Downstream Port 3 Implementation
9.2.1.2.5
Downstream Port 4 Implementation
9.2.1.2.6
VBUS Power Switch Implementation
9.2.1.2.7
Clock, Reset, and Misc
9.2.1.2.8
TUSB8042A Power Implementation
9.2.1.3
Application Curves
10
Power Supply Recommendations
10.1
TUSB8042A Power Supply
10.2
Downstream Port Power
10.3
Ground
11
Layout
11.1
Layout Guidelines
11.1.1
Placement
11.1.2
Package Specific
11.1.3
Differential Pairs
11.2
Layout Examples
11.2.1
Upstream Port
11.2.2
Downstream Port
12
器件和文档支持
12.1
接收文档更新通知
12.2
社区资源
12.3
商标
12.4
静电放电警告
12.5
Glossary
13
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
RGC|64
MPQF125F
散热焊盘机械数据 (封装 | 引脚)
RGC|64
QFND515A
订购信息
zhcsjz0_oa
zhcsjz0_pm
7
Specifications
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