參數(shù)資料
型號: LXT914PE
英文描述: LAN HUB CONTROLLER
中文描述: 局域網(wǎng)集線器控制器
文件頁數(shù): 38/42頁
文件大?。?/td> 561K
代理商: LXT914PE
LXT914
Flexible Quad Ethernet Repeater
38
Datasheet
Table 25. IRB Electrical Characteristics
(over recommended range)
Parameter
Symbol
Min
Typ
Max
Units
Test Conditions
Output Low voltage
V
OL
.3
.6
V
Output rise or fall time
T
F
4
12
ns
Input Low voltage: IRENA,
IRCOL & IRDAT
V
ILIRB
0.8
V
R
L
= 330
Input High voltage: IRENA,
IRCOL & IRDAT
V
IHIRB
3.0
V
R
L
= 330
Input Low voltage: BCLKIO
V
ILBCLK
0.4
V
R
L
= 330
Input High voltage: BCLKIO
V
IHBCLK
4.0
V
R
L
= 330
Typical values are at 25
°
C and are for design aid only; they are not guaranteed and not subject to
production testing.
Table 26. Switching Characteristics
(over recommended range)
Parameter
Min
Typ
Max
Units
Jabber Timing
Maximum transmit time
5.0
5.5
ms
Unjab time
9.6
μ
s
Link Integrity Timing
Time link loss
60
ms
Time between Link Integrity Pulses
10
20
ms
Interval for valid receive Link Integrity Pulses
4.1
30
ms
Typical values are at 25
°
C and are for design aid only; they are not guaranteed and not subject to
production testing.
Table 27. Serial Port Timing
External Mode
(over recommended range)
Parameter
Symbol
Minimum
Typical
Maximum
Units
SCLKIO High to SENI Low (active)
tS1
0
50
ns
SCLKIO High to SDIN data valid
tS2
0
50
ns
SCLKIO High to SENO Low (active)
tS3
5
15
ns
SCLKIO Low to SDOUT data valid
tS4
5
15
ns
Typical values are at 25
°
C and are for design aid only; they are not guaranteed and not subject to
production testing.
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