Philips ISP1122 ユーザーズマニュアル
Philips Semiconductors
ISP1122
USB stand-alone hub
Product specification
Rev. 03 — 29 March 2000
2 of 48
9397 750 07002
© Philips Electronics N.V. 2000. All rights reserved.
■
Full-scan design with high test coverage
■
Available in 32-pin SDIP, SO and LQFP packages.
3.
Ordering information
4.
Block diagram
Table 1:
Ordering information
Type number
Package
Name
Description
Version
ISP1122D
SO32
plastic small outline package; 32 leads; body width 7.5 mm
SOT287-1
ISP1122NB
SDIP32
plastic shrink dual in-line package; 32 leads (400 mil)
SOT232-1
ISP1122BD
LQFP32
plastic low profile quad flat package; 32 leads; body 7 x 7 x 1.4 mm
SOT358-1
This is a conceptual block diagram and does not include each individual signal.
Fig 1.
Block diagram.
d
th
MGR774
I
2
C-BUS
INTERFACE
HUB
REPEATER
ISP1122
ANALOG
Tx / Rx
D
+
D
−
overcurrent
detection
downstream
port 1
LED/
power switch
GoodLink/
POWER SWITCH/
OC DETECT
ANALOG
Tx / Rx
D
+
D
−
overcurrent
detection
downstream
port 2
LED/
power switch
GoodLink/
POWER SWITCH/
OC DETECT
ANALOG
Tx / Rx
D
+
D
−
overcurrent
detection
downstream
port 3
LED/
power switch
GoodLink/
POWER SWITCH/
OC DETECT
ANALOG
Tx / Rx
D
+
D
−
overcurrent
detection
downstream
port 4
LED/
power switch
GoodLink/
POWER SWITCH/
OC DETECT
ANALOG
Tx / Rx
D
+
D
−
full
speed
speed
upstream
port
LED
HUB
GoodLink
ANALOG
Tx / Rx
D
+
D
−
overcurrent
detection
self/bus
powered
downstream
port 5
LED/
power switch
GoodLink/
POWER SWITCH/
OC DETECT
HUB
CONTROLLER
PACKET
GENERATOR
GENERAL
PORT
CONTROLLER
END OF
FRAME
TIMERS
PHILIPS
SIE
BIT CLOCK
RECOVERY
PLL
6 MHz
SUPPLY
REGULATOR
VCC
3.3 V
5 V
Vreg(3.3)
SDA
INDV
OPTION
SCL