MB86605 Fujitsu Microelectronics, Inc., MB86605 Datasheet - Page 20

• Manufacturer Part Number: MB86605
• Description: CMOS-wide Scsi-ii Protocol Controller With Pci Interface
• Manufacturer: Fujitsu Microelectronics, Inc.

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MB86605
4. AC Characteristics
(1) System clock
Note: When the internal operating clock frequency is the same as the input clock frequency, (when using the device
• SCSI clock (SCLK pin)
Clock period
Clock pulse width (Low)
Clock pulse width (High)
Clock pulse rise time
Clock pulse fall time
in divide-by-1 mode), the clock pulse width for L and H levels must have minimum 20.0 ns or longer.
(i.e. When the clock conversion register value is 0Bh (address: 10h in the initial setting registers) and input
clock frequency = 20 MHz.)
SCLK
Parameter
0.8 V
2.4 V
t
CLCH
Symbol
t
t
t
t
t
CLF
CLCH
CHCL
CR
CF
2.4 V
0.8 V
t
CF
t
CHCL
Min.
25.0
10.0
10.0
—
—
t
CLF
0.8 V
2.4 V
t
Value
Typ.
CR
—
—
—
—
—
Max.
50.0
5.0
5.0
—
—
2.4 V
0.8 V
Unit
ns
ns
ns
ns
ns