参数资料
型号: MB90F497PFM
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP64
封装: 12 X 12 MM, 0.65 MM PITCH, QFP-64
文件页数: 24/40页
文件大小: 484K
代理商: MB90F497PFM
MB90495 Series
MB90495 Series Data Sheet (Advance Information)
30 / 40
FMG EMDC June 19, 2000
14.6 External Bus Timing (Write)
(TA = –40 to +85
°C, VCC = 4.5 to 5.5 V, VSS = 0 V)
Figure 14.7 Bus Timing (Write)
Parameter
Symbol
Pin
Test Condition
Rated Value
Units
Remarks
Min.
Max.
Valid address
WR ↓ time
tAVWL
A23 - A16,
AD15 - AD00,
WR
tCP – 15
ns
WR pulse width
tWLWH
WR
3 tCP/2 – 20
ns
Valid data output
WR ↑ time
tDVWH
AD15 - AD00,
WR
3 tCP/2 – 20
ns
WR
↑ Data hold time
tWHDX
AD15 - AD00,
WR
20
ns
WR
↑ Address valid time
tWHAX
A23 - A16, WR
tCP/2 – 10
ns
WR
↑ ALE ↑ time
tWHLH
WR, ALE
tCP/2 – 15
ns
WR
↓ CLK ↑ time
tWLCH
WR, CLK
tCP/2 – 20
ns
CLK
tWLCH
2.4 V
ALE
tWHLH
2.4 V
WR (WRL, WRH)
tWLWH
0.8 V
2.4 V
tAVWL
A23 to A16
0.8 V
2.4 V
0.8 V
tWHAX
AD15 to AD00
2.4 V
0.8 V
Address
0.8 V
2.4 V
Write data
tDVWH
0.8 V
2.4 V
tWHDX
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