Philips ISP1122A Product Data page 4

Philips Semiconductors
9397 750 08958
Product data
Table 2: Pin description for SO32 and SDIP32
[1]
Symbol Pin Type
OC3 9 AI/I
OC4 10 AI/I
[3]
OC5/GOC 11 AI/I
DM4 12 AI/O
DP4 13 AI/O
SP/BP 14 I
HUBGL 15 O
[3]
PSW3/GL3 16 O
[3]
PSW4/GL4 17 O
PSW5/GL5/ 18 O
[3]
GPSW
XTAL1 19 I
XTAL2 20 O
[2]
RESET 21 I
OPTION/SCL 22 I/O
INDV/SDA 23 I/O
DM5 24 AI/O
DP5 25 AI/O
DM1 26 AI/O
DP1 27 AI/O
Rev. 03 — 30 October 2001
...continued
Description
overcurrent sense input for downstream port 3 (analog
overcurrent sense input for downstream port 4 (analog
modes 5, 7: overcurrent sense input for downstream port 5
[5]
(analog )
modes 0, 1, 3: global overcurrent sense input (analog
downstream port 4 D− connection (analog)
downstream port 4 D+ connection (analog)
selects power mode:
self-powered: connect to V
this mode for hybrid-powered operation
bus-powered: connect to GND; disable downstream port 5 to
meet supply current requirements
hub GoodLink LED indicator output (open-drain, 6 mA);
to connect an LED use a 330 Ω series resistor; if unused
connect to V via a 10 kΩ resistor
CC
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 Ω 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 Ω 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 Ω
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
(internal POR circuit)
mode selection input; also functions as I
(open-drain, 6 mA)
selects individual (HIGH) or global (LOW) power switching
and overcurrent detection; also functions as bidirectional
2
I C-bus data line (open-drain, 6 mA)
downstream port 5 D− connection (analog)
downstream port 5 D+ connection (analog)
downstream port 1 D− connection (analog)
downstream port 1 D+ connection (analog)
ISP1122A
USB stand-alone hub
[4]
[4]
(local power supply); also use
DD
[4]
for power-on reset
CC
2
C-bus clock output
[4]
[4]
[6]
[6]
© Koninklijke Philips Electronics N.V. 2001. All rights reserved.
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