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參數(shù)資料
型號(hào): ISP1122NB
廠(chǎng)商: NXP SEMICONDUCTORS
元件分類(lèi): 總線(xiàn)控制器
英文描述: Universal Serial Bus stand-alone hub
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDIP32
封裝: 0.400 INCH, SHRINK, PLASTIC, SOT-232-1, DIP-32
文件頁(yè)數(shù): 28/48頁(yè)
文件大小: 1159K
代理商: ISP1122NB
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
28 of 48
9397 750 07002
Philips Electronics N.V. 2000. All rights reserved.
Power switches 1 to 4 are low-ohmic PMOS devices as specified in
Section 12.2
.
Fig 12. Mode 4: bus-powered hub; individual port power switching; individual overcurrent detection.
handbook, full pagewidth
MGR786
INDV
OPTION
PSW1/GL1
PSW5/GL5/GPSW
PSW4/GL4
PSW3/GL3
SP/BP
OC5/GOC
PSW2/GL2
OC1
OC2
OC3
OC4
ISP1122
VBUS
D
+
D
GND
SHIELD
+
4.50 V(min)
upstream
port
VCC
GND
1
2
3
4
+
4.40 V
(min)
VBUS
D
+
D
GND
SHIELD
1
downstream
ports
120
μ
F
ferrite bead
+
4.40 V
(min)
VBUS
D
+
D
GND
SHIELD
2
120
μ
F
ferrite bead
+
4.40 V
(min)
VBUS
D
+
D
GND
SHIELD
3
120
μ
F
ferrite bead
+
4.40 V
(min)
VBUS
D
+
D
GND
SHIELD
4
120
μ
F
ferrite bead
330 k
(4
×
)
low-ohmic
PMOS switch
47 k
0.1
μ
F
low-ohmic
PMOS switch
47 k
0.1
μ
F
low-ohmic
PMOS switch
47 k
0.1
μ
F
low-ohmic
PMOS switch
47 k
0.1
μ
F
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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