参数资料
型号: MB90548PF
厂商: FUJITSU LTD
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: 35/73页
文件大小: 1663K
代理商: MB90548PF
MB90540/545 Series
40
(5) Bus Timing (Read)
(VCC
= 4.5 V to 5.5 V, VSS = 0 V, TA = 40 °C to +85 °C)
Parameter
Symbol
Pin
Condition
Value
Units Remarks
Min.
Max.
ALE pulse width
tLHLL
ALE
tCP/2
20
ns
Valid address
ALE ↓ time
tAVLL
ALE,
A23 to A16,
AD15 to
AD00
tCP/2
20
ns
ALE
↓ Address valid time
tLLAX
ALE, AD15
to AD00
tCP/2
15
ns
Valid address
RD ↓ time
tAVRL
A23 toA16,
AD15 to
AD00, RD
tCP
15
ns
Valid 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 valid time
tRHAX
RD, A23 to
A16
tCP/2
10
ns
Valid 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
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