参数资料
型号: MB90553BPF
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封装: PLASTIC, QFP-100
文件页数: 35/61页
文件大小: 687K
代理商: MB90553BPF
MB90550A/550B Series
40
(5) Bus Read Timing
(VCC
= 5.0 V±10%, VSS = AVSS = 0.0 V, TA = 40 °C to +85 °C)
Parameter
Symbol
Pin name
Value
Unit
Remarks
Min
Max
ALE pulse width
tLHLL
ALE
tCP/2
20
ns
Effective address
→ ALE ↓ time
tAVLL
ALE, A23 to A16,
AD15 to AD00
tCP/2
20
ns
ALE
↓ → address effective time
tLLAX
ALE, AD15 to AD00
tCP/2
15
ns
Effective address
→ RD ↓ time
tAVRL
A23 to A16,
AD15 to AD00, RD
tCP
15
ns
Effective address
→ valid data
input
tAVDV
A23 to A16,
AD15 to AD00
—5 tCP/2
60
ns
RD pulse width
tRLRH
RD
3 tCP/2
20
ns
RD
↓ → valid data input
tRLDV
RD, AD15 to AD00
3 tCP/2
60
ns
RD
↑ → data hold time
tRHDX
RD, AD15 to AD00
0
ns
RD
↑ → ALE ↑ time
tRHLH
RD, ALE
tCP/2
15
ns
RD
↑ → address effective time
tRHAX
ALE, A23 to A16
tCP/2
10
ns
Effective address
→ CLK ↑ time
tAVCH
A23 to A16,
AD15 to AD00, CLK
tCP/2
20
ns
RD
↓ → CLK ↑ time
tRLCH
RD, CLK
tCP/2
20
ns
ALE
↓ → RD ↓ time
tLLRL
ALE, RD
tCP/2
15
ns
CLK
ALE
A23 to A16
AD15 to AD00
RD
tAVCH
tLHLL
tAVLL
tRLRH
tRHAX
tRHDX
tRLDV
tAVRL
tAVDV
tRHLH
tRLCH
2.4 V
0.8 V
0.7 VCC
0.3 VCC
0.7 VCC
0.3 VCC
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
0.8 V
2.4 V
tLLAX
tLLRL
Bus read timing
Multiplex mode
Address
Read data
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