參數(shù)資料
型號: UPD70741
廠商: NEC Corp.
元件分類: 16位微控制器
英文描述: V821TM 32-/16-BIT MICROPROCESSOR
中文描述: V821TM 32-/16-BIT微處理器
文件頁數(shù): 72/112頁
文件大?。?/td> 605K
代理商: UPD70741
μ
PD70741
72
(b) Read timing (1/2)
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
Read cycle time
28
t
RC
(n + 2)T - 10
ns
Address access time
29
t
AA
(n + 2)T - 25
ns
Hold time from address to data input
30
t
ADH
0
ns
CSn access time
31
t
CSA
(n + 2)T - 25
ns
Hold time from CSn to data input
32
t
CDH
0
ns
Delay from CSn
to write data output (ADC = 0)
33
t
DCD0
0.5T - 10
ns
Delay from CSn
to write data output (ADC = 1)
34
t
DCD1
1T - 10
ns
RD access time
35
t
RDA
(n + 1.5)T - 25
ns
Hold time from RD to data input
36
t
RDH
0
ns
RD pulse width
37
t
RDP
(n + 1.5)T - 7
ns
RD high-level width
38
t
RDRDH
0.5T - 10
ns
Delay from RD
to write data output (ADC = 0)
39
t
DRD0
0.5T - 10
ns
Delay from RD
to write data output (ADC = 1)
40
t
DRD1
1T - 10
ns
Address valid time prior to RD
41
t
ARS
0.5T - 7
ns
CSn valid time prior to RD
42
t
CRS
0.5T - 7
ns
Remark
T : t
CYK
n : Wait state count
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