參數(shù)資料
型號： ISP1520BD,557
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁數(shù)： 51/54頁
文件大?。?/td> 288K
代理商： ISP1520BD,557
ISP1520_4
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 04 — 28 April 2006
5 of 53
Philips Semiconductors
ISP1520
Hi-Speed USB hub controller
GND
10
-
ground supply
VCC4
11
-
supply voltage 4 (3.3 V) (crystal and PLL)
TEST_HIGH
12
-
test pin; connect to 3.3 V
VCC2
13
-
supply voltage 2 (3.3 V) (transceiver)
GND
14
-
ground supply
DM1
15
AI/O
downstream facing port 1 D
connection (analog)[3]
DP1
16
AI/O
downstream facing port 1 D+ connection (analog)[3]
TEST_LOW
17
-
connect to GND
TEST_HIGH
18
-
connect to 5.0 V through a 10 k
resistor
OC1_N
19
AI/I
overcurrent sense input for downstream facing port 1
(analog/digital)
PSW1_N
20
I/O
output — power switch control output (open-drain) with an
internal pull-up resistor for downstream facing port 1
input — function of the pin when used as an input is given in
GND
21
-
ground supply
GND
22
-
ground supply
VCC3
23
-
supply voltage 3 (3.3 V) (digital)
VREF(5V0)
24
-
reference voltage (5 V
± 5 %); used to power internal pull-up
resistors of PSWn_N pins and also for the analog overcurrent
detection
OC4_N
25
AI/I
overcurrent sense input for downstream facing port 4
(analog/digital)
PSW4_N
26
I/O
output — power switch control output (open-drain) with an
internal pull-up resistor for downstream facing port 4
input — function of the pin when used as an input is given in
OC3_N
27
AI/I
overcurrent sense input for downstream facing port 3
(analog/digital)
PSW3_N
28
I/O
output — power switch control output (open-drain) with an
internal pull-up resistor for downstream facing port 3
input — function of the pin when used as an input is given in
OC2_N
29
AI/I
overcurrent sense input for downstream facing port 2
(analog/digital)
PSW2_N
30
I/O
output — power switch control output (open-drain) with an
internal pull-up resistor for downstream facing port 2
input — function of the pin when used as an input is given in
RESET_N
31
I
asynchronous reset input; when reset is active, the internal
switch to the 1.5 k
external resistor is opened, and all pins
DPn and DMn are 3-state; it is recommended that you connect
to any one of the 3.3 V VCC pins through an RC circuit; refer to
the schematics in ISP1520
Hub Demo Board User’s Guide
ADOC
32
I
analog or digital overcurrent detect selection input; LOW selects
digital mode and HIGH (3.3 V or 5.0 V) selects analog mode
Table 2.
Pin description …continued
Symbol[1][2]
Pin
Type
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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