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參數(shù)資料
| 型號： | S2R72A44F12C4 |
| 元件分類： | 總線控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, QFP-48 |
| 文件頁數(shù)： | 4/30頁 |
| 文件大?。?/td> | 529K |
| 代理商： | S2R72A44F12C4 |
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5.
Pin Function and Description
S2R72A4xF12C4 Series Data Sheet
Seiko Epson Corporation
9
(Rev.1.00)
USB (S2R72A42)
Pin No.
Name
I/O
RESET
Description
18
NC
Not used (leave open)
17
NC
Not used (leave open)
21
NC
Not used (leave open)
20
NC
Not used (leave open)
27
NC
Not used (leave open)
34
NC
Not used (leave open)
28
NC
Not used (leave open)
35
NC
Not used (leave open)
POWER (applies to S2R72A44/A43/A42)
Pin No.
Name
Voltage
Description
4, 9, 15, 31, 42
HVDD
3.3 V
3.3 V supply for USB and IO
3, 8, 16, 29, 43, 46
LVDD
1.8
1.8 V supply for internal core
6, 11, 19, 30, 40, 48
VSS
0 V
GND
5.1
VBUS switch management
Dx{x=1-4}_VBUSEN pins corresponding to each down ports are surved for this purpose.
VBUS switch devices connected to those pins can be managed individually (Individual mode, i.e. MODE2 =
High) or concurrently (Gang mode, i.e. MODE2 = Low).
Assertion of VBUSEN signals are caused only by SetPortFeature(PORT_POWER) standard request which is
issued by the Host. Further conditions as listed below are required for VBUSEN signals to be asserted at that
moment.
- MODE1 pin is set to High (i.e. bPwrOn2PwrGood = 0b1)
- The LSI is under configured condition (as USB standard meaning) as a result of receiving SetConfiguration()
standard request from the Host.
- Dx{x=1-4}_VBUSFLG pins correspoinding to each of down ports are not forced to low.
If each of those VBUSFLG signals is asserted, PORT_OVER_CURRENT status on each down port is set.
Those statuses can be checked with GetPortStatus() standard request which is issued repeatedly by ordinaly host
stacks.
Lack of at least one of above conditions causes nagation of VBUSEN signal. Once VBUSEN is negated, it is not
asserted again without reception of SetPortFeature(PORT_POWER) even if conditions are returned in order.
In Gang mode, D1_VBUSEN alone is served for the VBUS management function.
Please refer to the USB 2.0 standard for USB defined things such as bPwrOn2PwrGood condition, standard
requests, Individual mode or Gang mode.
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| S2R72V18 | 制造商:EPSON 制造商全稱:EPSON 功能描述:Supports HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) transfer |
| S2R72V27 | 制造商:EPSON 制造商全稱:EPSON 功能描述:Supports HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) transfer |
| S2RC | 制造商:Panduit Corp 功能描述:42RU CAGE NUT EQUIPMENT RAILS MOUNTING 制造商:Panduit Corp 功能描述:42RU CAGE NUT EQUIPMENT MOUNTING RAILS |
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