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參數(shù)資料
| 型號： | ISP1122A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Universal Serial Bus stand-alone hub |
| 中文描述： | 通用串行總線獨(dú)立的樞紐 |
| 文件頁數(shù)： | 7/48頁 |
| 文件大小： | 1150K |
| 代理商： | ISP1122A |
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Philips Semiconductors
ISP1122A
USB stand-alone hub
Preliminary specification
Rev. 01 — 27 March 2000
7 of 48
9397 750 06986
Philips Electronics N.V. 2000. All rights reserved.
OC5/GOC
[3]
7
AI/I
modes 5, 7
: overcurrent sense input for downstream port 5
(analog
[5]
)
modes 0, 1, 3
: global overcurrent sense input (analog
[5]
)
downstream port 4 D
connection (analog)
[4]
downstream port 4 D
+
connection (analog)
[4]
selects power mode:
self-powered
: connect to V
DD
(local power supply); also use
this mode for hybrid-powered operation
bus-powered
: connect to GND; disable downstream port 5 to
meet supply current requirements
[4]
hub GoodLink LED indicator output (open-drain, 6 mA);
to connect an LED use a 330
series resistor; if unused
connect to V
CC
via a 10 k
resistor
modes 4 to 6
: power switch control output for downstream
port 3 (open-drain, 6 mA)
modes 0 to 3, 7
: GoodLink LED indicator output for
downstream port 3 (open-drain, 6 mA); to connect an LED
use a 330
series resistor
modes 4 to 6
: power switch control output for downstream
port 4 (open-drain, 6 mA)
modes 0 to 3, 7
: GoodLink LED indicator output for
downstream port 4 (open-drain, 6 mA); to connect an LED
use a 330
series resistor
mode 5
: power switch control output for downstream port 5
(open-drain, 6 mA)
modes 3, 7
: GoodLink LED indicator output for downstream
port 5 (open-drain, 6 mA); to connect an LED use a 330
series resistor
modes 0 to 2
: gang mode power switch control output
(open-drain, 6 mA)
crystal oscillator input (6 MHz)
crystal oscillator output (6 MHz)
reset input (Schmitt trigger); a LOW level produces an
asynchronous reset; connect to V
CC
for power-on reset
(internal POR circuit)
mode selection input; also functions as I
2
C-bus clock output
(open-drain, 6 mA)
selects individual (HIGH) or global (LOW) power switching
and overcurrent detection; also functions as bidirectional
I
2
C-bus data line (open-drain, 6 mA)
downstream port 5 D
connection (analog)
[4]
downstream port 5 D
+
connection (analog)
[4]
downstream port 1 D
connection (analog)
[6]
downstream port 1 D
+
connection (analog)
[6]
upstream port D
connection (analog)
upstream port D
+
connection (analog)
DM4
DP4
SP/BP
8
9
10
AI/O
AI/O
I
HUBGL
11
O
PSW3/GL3
[3]
12
O
PSW4/GL4
[3]
13
O
PSW5/GL5/
GPSW
[3]
14
O
XTAL1
XTAL2
RESET
[2]
15
16
17
I
O
I
OPTION/SCL
18
I/O
INDV/SDA
19
I/O
DM5
DP5
DM1
DP1
DM0
DP0
20
21
22
23
24
25
AI/O
AI/O
AI/O
AI/O
AI/O
AI/O
Table 3:
Symbol
[1]
Pin description for LQFP32
…continued
Pin
Type
Description
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISP1122ABD | Universal Serial Bus stand-alone hub |
| ISP1122AD | Universal Serial Bus stand-alone hub |
| ISP1122ANB | Universal Serial Bus stand-alone hub |
| ISP1122 | Universal Serial Bus stand-alone hub |
| ISP1122BD | Universal Serial Bus stand-alone hub |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISP1122ABD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122AD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122ANB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122BD | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
| ISP1122D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus stand-alone hub |
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