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參數(shù)資料
| 型號： | MIC2550AYTS |
| 廠商： | MICREL INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Universal Serial Bus Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDSO14 |
| 封裝： | LEAD FREE, TSSOP-14 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 122K |
| 代理商： | MIC2550AYTS |
MIC2550A
Micrel, Inc.
M9999-031805
6
March 2005
:
t
m
u
s
n
n
a
r
T
(
0
=
#
E
O
p
t
u
p
–
t
u
D
O
t
0
s
E
e
S
c
c
n
R
P
0
0
1
1
1
V
M
0
1
0
1
V
+
D
V
C
X
0
1
X
R
0
0
1
1
0
1
0
1
0
1
e
o
o
d
L
L
n
d
U
:
t
v
n
c
e
R
(
=
#
E
O
u
p
t
u
p
M
0
1
0
1
t
u
V
O
t
0
s
E
e
S
c
c
n
R
+
D
–
D
0
1
0
1
P
0
0
1
1
V
V
C
X
0
1
X
R
0
0
1
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Note. X = undefined.
Table 1. Truth Table
Test Circuits
Device
Under
Test
50pF
24
For D+, D–:
V = 0V for t
and t
PHZ
V = V
BUS
for t
PZL
and t
PLZ
V
Test
Point
500
Figure 5. Load for Enable and Disable Time (D+, D–)
Device
Under
Test
25pF
Figure 6. V
P
, V
M
and RCV Load
Device
Under
Test
15k
C
L
V
TRM
1.5k
*
24
C
L
= 50pF, full speed
C
L
= 50pF, low speed (minimum timing)
C
= 600pF, low speed (maximum timing)
*1.5k on D– for low speed or D+ for high speed
Figure 7. D+ and D– Load
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