參數(shù)資料
型號: IT8228E
英文描述: LPC Media I/F Specification v0.2 | PC Product Line
中文描述: LPC媒體我/女規(guī)格v0.2 |個人電腦產(chǎn)品線
文件頁數(shù): 89/93頁
文件大?。?/td> 479K
代理商: IT8228E
10. AC Characteristics (VCC = 3.3V
±
5%, Ta = 0
°
C to + 70
°
C)
10.1 Clock Input Timings
Symbol
Parameter
Clock High Pulse Width when CLKIN=48 MHz
1
Clock Low Pulse Width when CLKIN=48 MHz
1
Clock Period when CLKIN=48 MHz
1
Clock High Pulse Width when CLKIN=24 MHz
1
Clock Low Pulse Width when CLKIN=24 MHz
1
Clock Period when CLKIN=24 MHz
1
Not tested. Guaranteed by design.
www.ite.com.tw
IT8228E V0.2
79
AC Characteristics
Min.
Typ.
Max.
Unit
t
1
8
nsec
t
2
8
nsec
t
3
20
21
22
nsec
t
4
18
nsec
t
5
18
nsec
t
6
40
42
44
nsec
t
1
, t
4
2.2V
t
2
,t
5
t
3
,t
6
0.8V
Figure 10-1. Clock Input Timings
10.2 LCLK (PCICLK) and LRESET Timings
Symbol
Parameter
Min.
Typ.
Max.
Unit
t
1
LCLK Cycle Time
28
nsec
t
2
LCLK High Time
11
nsec
t
3
LCLK Low Time
11
nsec
t
4
LRESET# Low Pulse Width
1.5
μ
sec
t
2
t
3
t
1
0.2VCC
0.6VCC
0.4VCC
p-to-p
(minimum)
Figure 10-2. LCLK (PCICLK) and LRESET Timings
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