參數(shù)資料
型號(hào): F497
廠商: Fujitsu Limited
英文描述: 16-bit Proprietary Microcontroller CMOS
中文描述: 16位微控制器專有的CMOS
文件頁(yè)數(shù): 30/40頁(yè)
文件大?。?/td> 484K
代理商: F497
MB90495 Series
MB90495 Series Data Sheet (Advance Information)
30 / 40
FMG EMDC June 19, 2000
14.6 External Bus Timing (Write)
(T
A
= –40 to +85
°
C, V
CC
= 4.5 to 5.5 V, V
SS
= 0 V)
Figure 14.7 Bus Timing (Write)
Parameter
Symbol
Pin
Test Condition
Rated Value
Units
Remarks
Min.
Max.
Valid address
WR
time
t
AVWL
A23 - A16,
AD15 - AD00,
WR
t
CP
– 15
ns
WR pulse width
t
WLWH
WR
3 t
CP
/2 – 20
ns
Valid data output
WR
time
t
DVWH
AD15 - AD00,
WR
3 t
CP
/2 – 20
ns
WR
Data hold time
t
WHDX
AD15 - AD00,
WR
20
ns
WR
Address valid time
t
WHAX
A23 - A16, WR
t
CP
/2 – 10
ns
WR
ALE
time
t
WHLH
WR, ALE
t
CP
/2 – 15
ns
WR
CLK
time
t
WLCH
WR, CLK
t
CP
/2 – 20
ns
CLK
t
WLCH
2.4 V
ALE
t
WHLH
2.4 V
WR (WRL, WRH)
t
WLWH
0.8 V
2.4 V
t
AVWL
A23 to A16
0.8 V
2.4 V
2.4 V
0.8 V
t
WHAX
AD15 to AD00
2.4 V
0.8 V
Address
0.8 V
2.4 V
Write data
t
DVWH
0.8 V
2.4 V
t
WHDX
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