參數(shù)資料
型號(hào): MB90641APF
元件分類(lèi): 微控制器/微處理器
英文描述: 16-BIT, MROM, 17 MHz, MICROCONTROLLER, PQFP100
封裝: PLASTIC, QFP-100
文件頁(yè)數(shù): 61/94頁(yè)
文件大?。?/td> 1542K
代理商: MB90641APF
64
MB90640A Series
(7)
Bus Timing (Write)
(VCC = 4.5 V to 5.5 V, VSS = 0.0 V, TA = –40°C to +85°C)
tCP: See “ (1) Clock Timing.”
Parameter
Symbol
Pin name
Conditions
Value
Unit
Remarks
Min.
Max.
Valid address
→ WR ↓ time tAVWL
Address
tCP – 15
ns
WR pulse width
tWLWH
WRL, WRH
—3 tCP/2 – 20
ns
Valid data output
→ WR ↑
time
tDVWH
Data
3 tCP/2 – 20
ns
WR
↑ → data hold time
tWHDX
Data
20
ns
Multiplex
mode
30
ns
Non-multiplex
mode
WR
↑ → address valid time tWHAX
Address
tCP/2 – 10
ns
WR
↑ → ALE ↑ time
tWHLH
WRL, WRH,
ALE
tCP/2 – 15
ns
WR
↓ → CLK ↑ time
tWLCH
WRL, WRH,
CLK
tCP/2 – 20
ns
CLK
ALE
WR
(WRL, WRH)
Address
Write data
tWHDX
tWHAX
tWLWH
tAVWL
0.8 V
2.4 V
A23 to
A16
AD15 to
AD00
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
Multiplex mode
Write data
tWHDX
A23 to
A00
D15 to
D00
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
Non-multiplex mode
tWLCH
tWHLH
tWHDX
tWHAX
tDVWH
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