參數(shù)資料
型號(hào): UPD70741GC-25-8EU
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(yè)數(shù): 82/112頁(yè)
文件大?。?/td> 605K
代理商: UPD70741GC-25-8EU
μ
PD70741
82
(d) Read timing (high-speed page access: on-page) (1/2)
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
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
CAS access time
58
t
CAC
(w + 1)T - 20
ns
Access time from column address
59
t
AA
(w + 1)T - 3
ns
Output enable access time
60
t
OEA
1.5T - 20
ns
Output buffer turn-off delay (relative to CAS)
61
t
OFF
0
ns
Output buffer turn-off delay (relative to MRD)
62
t
OEZ
0
ns
RD setup time (relative to RAS
)
63
t
OES
1.5T
ns
RAS hold width (read)
67
t
RSH
(w + 1.5)T - 20
ns
CAS pulse width (read)
68
t
CAS
(w + 1)T - 15
ns
CAS precharge time
72
t
CP
0.5T - 10
ns
Column address setup time (read)
75
t
ASC
0.5T - 15
ns
Column address hold time (read)
76
t
CAH
(w + 1)T - 15
ns
Cycle time in high-speed page mode
91
t
PC
1.5T - 10
ns
Access time from CAS precharge
92
t
ACP
2T - 20
ns
RAS hold time relative to CAS precharge
93
t
RHCP
2T
ns
Read command setup time
94
t
RCS
0.5T
ns
Read command hold time
95
t
RCH
0.5T - 15
ns
Remark
T : t
CYK
w : 0
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