参数资料
型号: MB89865PF
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP80
封装: PLASTIC, QFP-80
文件页数: 21/44页
文件大小: 1212K
代理商: MB89865PF
MB89860 Series
28
DS07-12504-6E
(7) Bus Write Timing
(VCC = +5.0 V
±10%, FC = 10 MHz, AVSS = VSS = 0.0 V, TA = –40°C to +85°C)
*1: For information on tinst, see “(4) Instruction Cycle”.
*2: These characteristics are also applicable to the bus read timing.
Parameter
Symbol
Pin
Condition
Value (10 MHz)
Unit
Remarks
Min.
Max.
Valid address
→ ALE ↓ time tAVLL
AD7 to AD0,
ALE, A15 to
A08
Load
condition:
50 pF
1/4 tinst*1 – 64 ns
—ns
ALE
↓ time → address
invalid time
tLLAX
5—
ns
Valid address
→ WR ↓ time tAVWL
WR, ALE
1/4 tinst*1 – 60 ns
—ns
WR pulse width
tWLWH
WR
1/2 tinst*1 – 20 ns
—ns
Write data
→ WR ↑ time tDVWH
AD7 to AD0, WR
1/2 tinst*1 – 60 ns
—ns
WR
↑ → address invalid time
tWHAX
WR, A15 to A08
1/4 tinst*1 – 40 ns
—ns
WR
↑ → data hold time tWHDX
AD7 to AD0, WR
1/4 tinst*1 – 40 ns
—ns
WR
↑ → ALE ↑ time
tWHLH
WR, ALE
1/4 tinst*1 – 40 ns
—ns
WR
↓ → CLK ↑ time
tWLCH
WR, CLK
1/4 tinst*1 – 60 ns
—ns
CLK
↓ → WR ↑ time
tCLWH
0—
ns
ALE pulse width
tLHLL
ALE
tXCYL – 35 ns*2
—ns
ALE
↓ → CLK ↑ time
tLLCH
ALE, CLK
tXCYL – 35 ns*2
—ns
ALE
AD
A
WR
CLK
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
2.4 V
0.8 V
tCLWH
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
tLLAX
t WHLH
tLLCH
tLHLL
tDVWH
tWHDX
tWLCH
tWLWH
tWHAX
tAVWL
tAVLL
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