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
文件頁數(shù): 76/112頁
文件大?。?/td> 605K
代理商: UPD70741GC-25-8EU
μ
PD70741
76
(5) DRAM access timing (when DRAM is directly connected)
(a) Read timing (normal access: off-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
Read/write cycle time
56
t
RC
(w + 4)T - 10
ns
RAS access time
57
t
RAC
(w + 2)T - 20
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 precharge time
64
t
RP
1.5T - 10
ns
RAS pulse width
65
t
RAS
(w + 2.5)T - 20
ns
RAS column address delay
66
t
RAD
0.5T - 3
0.5T + 7
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 hold width
69
t
CSH
(w + 2)T - 15
ns
RAS-CAS delay (read)
70
t
RCD
1T - 15
ns
RAS-CAS precharge time
71
t
CRP
1.5T
ns
CAS precharge time
72
t
CP
0.5T - 10
ns
Row address setup time
73
t
ASR
0.5T - 15
ns
Row address hold time
74
t
RAH
0.5T - 7
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
Column address read time relative to RAS
77
t
RAL
(w + 1.5)T
ns
Read command setup time
78
t
RCS
0.5T
ns
Read command hold time
79
t
RCH
0.5T - 15
ns
Remark
T : t
CYK
w: Wait state count - 2
相關(guān)PDF資料
PDF描述
UPD70F3003A V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
UPD70F3003AGC-25-8EU Circular Connector; No. of Contacts:24; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-24 RoHS Compliant: No
UPD70F3025AGC-25-8EU V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
UPD70F3003AGC-33-8EU LJT 29C 29#16 PIN PLUG
UPD70F3025AGC-33-8EU LJT 29C 29#16 PIN PLUG
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD70742GD-25-LML 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
UPD70F30025AGC-25 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers
UPD70F30025AGC-33 制造商:NEC 制造商全稱:NEC 功能描述:32-bit RISC Microcontrollers
UPD70F3003A 制造商:NEC 制造商全稱:NEC 功能描述:V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
UPD70F3003AGC(A)-33-8EU-A 制造商:Renesas Electronics Corporation 功能描述: