參數(shù)資料
型號(hào): MB90W224AZF
元件分類(lèi): 微控制器/微處理器
英文描述: 16-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CQFP120
封裝: CERAMIC, QFP-120
文件頁(yè)數(shù): 75/105頁(yè)
文件大?。?/td> 1700K
代理商: MB90W224AZF
71
MB90220 Series
(5) Bus Read Timing
(VCC = +4.5 V to +5.5 V, VSS = 0.0 V, TA = –40
°C to +70°C)
Parameter
Symbol
Pin name
Condition
Value
Unit
Remarks
Min.
Max.
Valid address
→ RD ↓ time
tAVRL
A23 to A00
Load
condition:
80 pF
tCYC/2 – 20
ns
RD pulse width
tRLRH
RD
tCYC – 25
ns
RD
↓ → Valid data input
tRLDV
D15 to D00
—tCYC – 30
ns
RD
↑ → Data hold time
tRHDX
0—
ns
Valid address
→ Valid data input tAVDV
3 tCYC/2 – 40
ns
RD
↑ → Address valid time
tRHAX
A23 to A00
tCYC/2 – 20
ns
Valid address
→ CLK ↑ time
tAVCH
A23 to A00
CLK
tCYC/2 – 25
ns
RD
↓ → CLK ↓ time
tRLCL
RD, CLK
tCYC/2 – 25
ns
CLK
RD
A23 to A00
D15 to D00
tRHDX
Read data
0.8 VCC
0.2 VCC
0.8 VCC
0.2 VCC
0.7 VCC
0.3 VCC
0.7 VCC
0.3 VCC
0.7 VCC
0.3 VCC
tAVCH
tRLCL
tAVRL
tRLRH
tRHAX
tRLDV
tAVDV
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