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參數(shù)資料
| 型號： | UPD720012 |
| 廠商： | NEC Corp. |
| 英文描述： | HUB CONTROLLER FOR UNIVERSAL SERIAL BUS |
| 中文描述： | 集線器控制器通用串行總線 |
| 文件頁數(shù)： | 15/36頁 |
| 文件大?。?/td> | 414K |
| 代理商： | UPD720012 |
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Data Sheet S13918EJ3V0DS
15
μ
PD72012
(2/2)
Value
Standard ROM code
product
No.
Field
Size
(Bytes)
Contents
003
004
Mask ROM
code
product
8
MaxPower
1
Shows the maximum current the HUB consumes in
normal operation in hexadecimal notation using
units of 2 mA.
Since it provides 1 UnitLoad (= 100 mA) to each
port downstream, this is not included in MaxPower.
However, if a non-removable device is connected
downstream, this is included (for details inquire in
the USB-IF).
Switching the input level of the PSSEL pin changes
the value that is returned. In short, two-way setting
of the
μ
PD72012 is possible for “self-power” and
“bus power”.
Mask ROM code product
For a “bus power” setting (PSSEL=“H”), normally set
this to 0x32 (100 mA). However, when making a
subordinate port a non-removable port, add the
current consumed by the device connected to that
port when you set the MaxPower value. On the
other hand, For a “self-power” setting (PSSEL=“L”),
0x32 (100 mA) is fixed.
0x32
(PSSEL=“L”)
or
0x32
(PSSEL=“H”)
0x32
(PSSEL=“L”)
or
0x32
(PSSEL=“H”)
0x32
(PSSEL=“L”)
or
0x32
(PSSEL=“H”)
(recommen-
ded value)
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| UPD72012GB-XXX | HUB CONTROLLER FOR UNIVERSAL SERIAL BUS |
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| UPD720101F1-EA8-A | 功能描述:HOST CTLR USB 2.0 144-FBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND |
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