參數(shù)資料
型號: ML674000
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: CMOS 32-Bit ARM-Based General-Purpose Single-Chip Microcontroller(基于ARM的32位CMOS單片機(jī))
中文描述: 的CMOS 32位基于ARM通用單芯片微控制器(基于ARM公司的32位的CMOS單片機(jī))
文件頁數(shù): 21/42頁
文件大小: 529K
代理商: ML674000
PEDL674000-02
OKI Semiconductor
ML674000
19/38
EDO DRAM
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Note
RASCAS Delay Time (EDO-DRAM)
t
EDRCD
n
1
Tc
n
1
Tc + 3
CAS Pulse Width (EDO-DRAM)
t
EDCAS
n
2
Tc - 3
n
2
Tc
RAS Pulse Width(EDO-DRAM)
t
EDRAS
5Tc - 3
n
1
= tRCD
RAS Precharge Time (EDO-DRAM)
t
EDRP
n
3
Tc
n
3
Tc + 3
n
2
= tCAS
CAS Precharge Time (EDO-DRAM)
t
EDCP
n
4
Tc
n
4
Tc + 3
n
3
= tRP
XRAS_N Delay Time (EDO-DRAM)
t
EDRASD
Tc - 3
Tc + 3
n
= tCAC + 1
- tCAS
XOE_N Delay Time 1 (EDO-DRAM)
t
EDOED1
n
5
Tc - 6
n
5
Tc - 3
n
5
= tRAH
n
= tRCD -
tRAH
XOE_N Delay Time 2 (EDO-DRAM)
t
EDOED2
n
4
Tc - 3
n
4
Tc
XWE_N Delay Time 1 (EDO-DRAM)
t
EDWED1
n
5
Tc - 3
n
5
Tc
n
7
= tCAC + 1
XWE_N Delay Time 2 (EDO-DRAM)
t
EDWED2
CL = 5 pF
n
4
Tc
n
4
Tc + 3
Row Address Hold Time (EDO-DRAM)
t
EDRAH
n
5
Tc - 3
n
5
Tc + 3
Column Address Hold Time
(EDO-DRAM)
t
EDCAD
n
6
Tc - 3
n
6
Tc + 3
Column Address Hold Time
(EDO-DRAM)
t
EDCAH
CL = 25 pF
n
2
Tc - 3
n
2
Tc + 3
XD[15:0] Sampling Timing Delay Time
(EDO-DRAM)
XD[15:0] Input Setup Time (EDO-
DRAM)
XD[15:0] Input Hold Time (EDO-
DRAM)
XD[15:0] Output Delay Time 1
(EDO-DRAM)
t
EDXDSMPL
D
n
7
Tc - 30
n
7
Tc - 9
t
EDXDIS
-9
t
EDXDIH
_
6
t
EDXDOD1
-3
0
XD[15:0] Output Delay Time 2
(EDO-DRAM)
t
EDXDOD2
-3
0
XD[15:0] Output Hold Time
(EDO-DRAM)
t
EDXDOH
CL = 20 pF
Tc - 3
ns
NOTES
*The tRAS,tRAH,tCAC,tCAS,tRCD, and tRP for EDO-DRAM are parameters which can be set in DRPC register. Refer to
the following Table in detail.
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