參數(shù)資料
型號: ISP1122D
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Universal Serial Bus stand-alone hub
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PDSO32
封裝: PLASTIC, SO-32
文件頁數(shù): 4/48頁
文件大?。?/td> 1159K
代理商: ISP1122D
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
4 of 48
9397 750 07002
Philips Electronics N.V. 2000. All rights reserved.
OC2
OC3
OC4
OC5/GOC
[3]
8
9
10
11
AI/I
AI/I
AI/I
AI/I
overcurrent sense input for downstream port 2 (analog
[5]
)
overcurrent sense input for downstream port 3 (analog
[5]
)
overcurrent sense input for downstream port 4 (analog
[5]
)
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]
DM4
DP4
SP/BP
12
13
14
AI/O
AI/O
I
HUBGL
15
O
PSW3/GL3
[3]
16
O
PSW4/GL4
[3]
17
O
PSW5/GL5/
GPSW
[3]
18
O
XTAL1
XTAL2
RESET
[2]
19
20
21
I
O
I
OPTION/SCL
22
I/O
INDV/SDA
23
I/O
DM5
DP5
DM1
24
25
26
AI/O
AI/O
AI/O
Table 2:
Symbol
[1]
Pin description for SO32 and SDIP32
…continued
Pin
Type
Description
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