欢迎访问ic37.com |
会员登录 免费注册
发布采购

USB2512B-AEZG 参数 Datasheet PDF下载

USB2512B-AEZG图片预览
型号: USB2512B-AEZG
PDF下载: 下载PDF文件 查看货源
内容描述: USB 2.0高速集线器控制器 [USB 2.0 Hi-Speed Hub Controller]
分类和应用: 外围集成电路控制器PC时钟
文件页数/大小: 72 页 / 1689 K
品牌: SMSC [ SMSC CORPORATION ]
 浏览型号USB2512B-AEZG的Datasheet PDF文件第52页浏览型号USB2512B-AEZG的Datasheet PDF文件第53页浏览型号USB2512B-AEZG的Datasheet PDF文件第54页浏览型号USB2512B-AEZG的Datasheet PDF文件第55页浏览型号USB2512B-AEZG的Datasheet PDF文件第57页浏览型号USB2512B-AEZG的Datasheet PDF文件第58页浏览型号USB2512B-AEZG的Datasheet PDF文件第59页浏览型号USB2512B-AEZG的Datasheet PDF文件第60页  
USB 2.0 Hi-Speed Hub Controller  
Datasheet  
8.6.1.1  
RESET_N for Strapping Option Configuration  
Drive Strap  
Start  
completion  
request  
response  
Hardware  
reset  
asserted  
Attach  
USB  
Upstream  
Read Strap  
Options  
Outputs to  
inactive  
levels  
USB Reset  
recovery  
Idle  
t7  
t8  
t1  
t2  
t6  
t5  
t3  
RESET_N  
VSS  
t4  
Strap Pins  
VSS  
Don’t Care  
Valid  
Driven by Hub if strap is an output.  
Don’t Care  
Figure 8.3 Reset_N Timing for Default/Strap Option Mode  
Table 8.7 Reset_N Timing for Default/Strap Option Mode  
NAME  
DESCRIPTION  
MIN  
TYP  
MAX  
UNITS  
t1  
t2  
t3  
t4  
t5  
t6  
RESET_N Asserted.  
1
μsec  
nsec  
nsec  
μsec  
msec  
msec  
Strap Setup Time  
16.7  
16.7  
Strap Hold Time.  
1400  
2
hub outputs driven to inactive logic states  
USB Attach (See Note).  
1.5  
100  
Host acknowledges attach and signals USB  
Reset.  
100  
t7  
t8  
USB Idle.  
undefined  
msec  
msec  
Completion time for requests (with or without data  
stage).  
5
Notes:  
„
When in bus-powered mode, the hub and its associated circuitry must not consume more than 100  
mA from the upstream USB power source during t1+t5.  
„
All power supplies must have reached the operating levels mandated in Chapter 9, DC Parameters,  
prior to (or coincident with) the assertion of RESET_N.  
Revision 1.0 (3-11-09)  
56  
SMSC USB251x  
DATASHEET  
 复制成功!