參數(shù)資料
型號(hào)： ISP1123BD
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： CAP .068UF 100V PPS FILM ECH-S
中文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP32
封裝： 7 X 7 X 1.40 MM, PLASTIC, LQFP-32
文件頁(yè)數(shù)： 5/49頁(yè)
文件大?。?/td> 1155K
代理商： ISP1123BD
Philips Semiconductors
ISP1123
USB compound hub
Preliminary specification
Rev. 01 — 5 October 1999
5 of 49
9397 750 06325
Philips Electronics N.V. 1999. All rights reserved.
[1]
[2]
Symbol names with an overscore (e.g. NAME) indicate active LOW signals.
The voltage at pin V
reg(3.3)
is gated by the RESET pin. This allows fully self-powered operation by
connecting RESET to V
BUS
(+5 V USB supply). If V
BUS
is lost upstream port D+ will not be driven.
See
Table 4 “Mode selection”
.
To disable a downstream port connect both D
+
and D
to V
CC
via a 1 M
resistor; unused ports must
be disabled in reverse order starting from port 5.
Analog detection circuit can be switched off using an external EEPROM, see
Table 23
; in this case,
the pin functions as a logic input (TTL level).
Downstream ports 1 and 2 cannot be disabled.
[3]
[4]
[5]
[6]
PSW5/GL5/
GPSW
[3]
18
O
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)
downstream port 2 D
connection (analog)
[6]
downstream port 2 D
+
connection (analog)
[6]
modes 4 to 6
: power switch control output for downstream
port 1 (open-drain, 6 mA)
modes 0 to 3, 7
: GoodLink LED indicator output for
downstream port 1 (open-drain, 6 mA); to connect an LED
use a 330
series resistor
XTAL1
XTAL2
RESET
[2]
19
20
21
I
O
I
OPTION/SCL
22
I/O
INDV/SDA
23
I/O
DM5
DP5
DM1
DP1
DM0
DP0
DM2
DP2
PSW1/GL1
[3]
24
25
26
27
28
29
30
31
32
AI/O
AI/O
AI/O
AI/O
AI/O
AI/O
AI/O
AI/O
O
Table 2:
Symbol
[1]
Pin description for SO32 and SDIP32
…continued
Pin
Type
Description
相關(guān)PDF資料
PDF描述
ISP1123 Universal Serial Bus compound hub
ISP1123D Universal Serial Bus compound hub
ISP1123NB Universal Serial Bus compound hub
ISP1130 Universal Serial Bus compound hub with integrated keyboard controller
ISP1130DL Universal Serial Bus compound hub with integrated keyboard controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1123D 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub
ISP1123NB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub
ISP1130 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller
ISP1130DL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller
ISP1130N 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus compound hub with integrated keyboard controller
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