ISP1123BD Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Lista de partido

ISP1123BD

Universal Serial Bus compound hub

Philips Electronics 

Philips Semiconductors

ISP1123

USB compound hub

6.1.2 Pin description

Table 2: Pin description for SO32 and SDIP32

Symbol [1]

Pin Type Description

Vreg(3.3) [2]

1

-

regulated supply voltage (3.3 V ± 10%) from internal

regulator; used to connect pull-up resistor on DP0 line

PSW2/GL2 [3] 2

O

modes 4 to 6: power switch control output for downstream

port 2 (open-drain, 6 mA)

modes 0 to 3, 7: GoodLink LED indicator output for

downstream port 2 (open-drain, 6 mA); to connect an LED

use a 330 Ω series resistor

GND

3

-

ground supply

DM3

4

AI/O downstream port 3 D− connection (analog) [4]

DP3

5

AI/O downstream port 3 D+ connection (analog) [4]

VCC

OC1

6

-

supply voltage; connect to USB supply VBUS (bus-powered or

hybrid-powered) or to local supply VDD (self-powered)

7

AI/I overcurrent sense input for downstream port 1 (analog [5])

OC2

8

AI/I overcurrent sense input for downstream port 2 (analog [5])

OC3

9

AI/I overcurrent sense input for downstream port 3 (analog [5])

OC4

10 AI/I overcurrent sense input for downstream port 4 (analog [5])

OC5/GOC [3] 11

AI/I modes 5, 7: overcurrent sense input for downstream port 5

(analog [5])

modes 0, 1, 3: global overcurrent sense input (analog [5])

DM4

12 AI/O downstream port 4 D− connection (analog) [4]

DP4

13 AI/O downstream port 4 D+ connection (analog) [4]

SP/BP

14 I

selects power mode:

self-powered: connect to VDD (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]

HUBGL

15 O

PSW3/GL3 [3] 16 O

hub GoodLink LED indicator output (open-drain, 6 mA);

to connect an LED use a 330 Ω series resistor; if unused

connect to VCC via a 10 kΩ 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 Ω series resistor

PSW4/GL4 [3] 17 O

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

9397 750 06325

Preliminary specification

Rev. 01 — 5 October 1999

© Philips Electronics N.V. 1999. All rights reserved.

4 of 49

Share Link: