參數(shù)資料
型號: MB86605PMT
元件分類: 總線控制器
英文描述: SCSI BUS CONTROLLER, PQFP144
封裝: PLASTIC, LQFP-144
文件頁數(shù): 13/64頁
文件大小: 275K
代理商: MB86605PMT
20
MB86605
4.
AC Characteristics
(1) System clock
SCSI clock (SCLK pin)
Note: When the internal operating clock frequency is the same as the input clock frequency, (when using the device
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.)
Parameter
Symbol
Value
Unit
Min.
Typ.
Max.
Clock period
tCLF
25.0
50.0
ns
Clock pulse width (Low)
tCLCH
10.0
ns
Clock pulse width (High)
tCHCL
10.0
ns
Clock pulse rise time
tCR
——
5.0
ns
Clock pulse fall time
tCF
——
5.0
ns
SCLK
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
t CF
t CR
t CLCH
t CLF
t CHCL
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