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參數資料
型號: ISP1521BE
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Hi-Speed Universal Serial Bus hub controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-315-1, LQFP-80
文件頁數: 39/53頁
文件大小: 270K
代理商: ISP1521BE
Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data
Rev. 03 — 24 November 2004
39 of 53
9397 750 13702
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Table 43:
V
CC
= 3.0 V to 3.6 V; T
amb
=
40
°
C to +70
°
C; test circuit
Figure 21
; unless otherwise specified.
Symbol
Parameter
Driver characteristics
t
HSR
rise time
t
HSF
fall time
Clock timing
t
HSDRAT
data rate
t
HSFRAM
microframe interval
t
HSRFI
consecutive microframe interval
difference
Dynamic characteristics: high-speed source electrical characteristics
Conditions
Min
Typ
Max
Unit
10 % to 90 %
90 % to 10 %
500
500
-
-
-
-
ps
ps
479.76
124.9375 -
1
-
480.24
125.0625
four high-speed
bit times
Mbit/s
μ
s
ns
-
Table 44:
V
CC
= 3.0 V to 3.6 V; T
amb
=
40
°
C to +70
°
C; test circuit
Figure 22
; unless otherwise specified.
Symbol
Parameter
Driver characteristics
t
FR
rise time
Dynamic characteristics: full-speed source electrical characteristics
Conditions
Min
Typ
Max
Unit
C
L
= 50 pF; 10 % to 90 % of
|
V
OH
V
OL
|
C
L
= 50 pF; 90 % to 10 % of
|
V
OH
V
OL
|
4
-
20
ns
t
FF
fall time
4
-
20
ns
t
FRFM
differential rise and fall time
matching
driver output resistance
[1]
90
-
111.1
%
Z
DRV
for the driver that is not
high-speed capable
28
-
44
V
CRS
Data source timing
[2]
t
DJ1
output signal crossover voltage
[1][2]
1.3
-
2.0
V
source differential jitter for
consecutive transitions
source differential jitter for paired
transitions
source SE0 interval of EOP
source differential data-to-EOP
transition skew
Receiver timing
[2]
t
JR1
receiver data jitter tolerance for
consecutive transitions
t
JR2
receiver data jitter tolerance for
paired transitions
t
FEOPR
receiver SE0 width
see
Figure 10
[1]
3.5
-
+3.5
ns
t
DJ2
see
Figure 10
[1]
4
-
+4
ns
t
FEOPT
t
FDEOP
see
Figure 11
see
Figure 11
160
2
-
-
175
+5
ns
ns
see
Figure 12
18.5
-
+18.5
ns
see
Figure 12
9
-
+9
ns
accepted as EOP; see
Figure 11
rejected as EOP; see
Figure 13
82
-
-
ns
t
FST
width of SE0 interval during
differential transaction
Hub timing (downstream ports configured as full-speed)
[2]
t
FHDD
hub differential data delay (without
cable)
-
-
14
ns
see
Figure 14
; C
L
= 0 pF
-
-
44
ns
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