參數(shù)資料
型號(hào): μPD705101
廠商: NEC Corp.
英文描述: 32 Bit Microprocessor(32 位微處理器)
中文描述: 32位微處理器(32位微處理器)
文件頁數(shù): 47/72頁
文件大?。?/td> 301K
代理商: ΜPD705101
μ
PD705101
47
(4) DRAM access timing
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
BCYST delay time (vs. CLKOUT
)
<15>
t
DKBC
2
10
ns
Address delay time (vs. CLKOUT
)
<16>
t
DKA
2
9
ns
RAS delay time (vs. CLKOUT
)
<17>
t
DKRAS
1
6
ns
CAS delay time (vs. CLKOUT
)
<18>
t
DKCAS
1
6
ns
CAS signal interval
<19>
t
CYC
26
ns
CAS high-level time
<20>
t
CCH
11
ns
CAS low-level time
<21>
t
CCL
11
ns
CAS rise time
<22>
t
CR
4
ns
CAS fall time
<23>
t
CF
4
ns
WE delay time (vs. CLKOUT
)
<24>
t
DKWE
2
10
ns
OE delay time (vs. CLKOUT
)
<25>
t
DKOE
2
10
ns
REFRQ delay time (vs. CLKOUT
)
<26>
t
DKREF
2
10
ns
Data input setup time (DRAM read) (vs. CLKOUT
)
<27>
t
SDRMK
0
ns
Data input hold time (DRAM read) (vs. CLKOUT
)
<28>
t
HKDRM
5
ns
Data output delay time (from active, vs. CLKOUT
)
<29>
t
DKDT
2
10
ns
Data output delay time (from float, vs. CLKOUT
)
<30>
t
LZKDT
2
10
ns
Data float delay time (vs. CLKOUT
)
<31>
t
HZKDT
3
20
ns
(a) xxCAS signal
<23>
<22>
<21>
<20>
<19>
xxCAS (output)
0.8 V
DD
0.5 V
DD
0.2 V
DD
Remark
xxCAS : UUCAS, ULCAS, LUCAS, LLCAS
相關(guān)PDF資料
PDF描述
μPD705102GM-143-8ED 32 Bit RISC Microcontrollers(32 位RISC 微控制器)
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