PC87307VUL National Semiconductor, PC87307VUL Datasheet - Page 192

• Manufacturer Part Number: PC87307VUL
• Description: PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
• Manufacturer: National Semiconductor

www.national.com
13.3.2 Clock Timing
X1
t
t
t
t
t
CH
CL
CP
ICP
DRP
Symbol
a. Not tested. Guaranteed by design.
MFM Data Rate
Clock High Pulse Width
Clock Low Pulse Width
Clock Period
Internal Clock Period (See Table 13-36.)
Data Rate Period (See Table 13-36.)
500 Kbps
300 Kbps
250 Kbps
1 Mbps
a
t
CH
Parameter
TABLE 13-36. Nominal t
1000
2000
3333
4000
t
DRP
a
a
FIGURE 13-2. Clock Timing
TABLE 13-35. Clock Timing
Device Description
t
CL
192
3 x t
3 x t
5 x t
6 x t
t
ICP
CP
CP
CP
CP
ICP
Min
16
16
40
, t
24MHz
DRP
Values
Max
43
Value
125
125
208
250
Min
8.4
8.4
20
48MHz
t
CP
Max
21.5
nsec
nsec
nsec
nsec
Unit
nsec
nsec
nsec
Unit