參數(shù)資料
型號: UPD703100GJ-40-8EU
廠商: NEC Corp.
英文描述: V850E/MS1TM 32/16-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: V850E/MS1TM 32/16單晶片微控制器
文件頁數(shù): 116/132頁
文件大小: 1174K
代理商: UPD703100GJ-40-8EU
Preliminary Data Sheet U14168EJ2V0DS00
116
μ
PD703100A-33, 703100A-40, 703101A-33, 703102A-33
(i) CBR refresh timing
Parameter
Symbol
Condition
MIN.
MAX.
Unit
RAS precharge time
<61>
t
RP
(1.5 + w
RRW
) T – 5
ns
RAS pulse width
<62>
t
RAS
(1.5 + w
RCW
Note
) T – 10
ns
CAS hold time
<108>
t
CHR
(1.5 + w
RCW
Note
) T – 10
ns
REFRQ pulse width
<109>
t
WRFL
(3 + w
RRW
+ w
RCW
Note
) T – 10
ns
RAS precharge CAS hold time
<110>
t
RPC
(0.5 + w
RRW
) T – 10
ns
REFRQ active delay time
(from CLKOUT
)
<111>
t
DKRF
2
10
ns
REFRQ inactive delay time
(from CLKOUT
)
<112>
t
HKRF
2
10
ns
CAS setup time
<113>
t
CSR
T – 10
ns
Note
At least one clock cycle is inserted by default for w
RCW
regardless of the settings of the RCW0 to RCW2 bits
of the RWC register.
Remarks 1.
T = t
CYK
2.
w
RRW
: the number of waits due to the RRW0 and RRW1 bits of the RWC register.
3.
w
RCW
: the number of waits due to the RCW0 to RCW2 bits of the RWC register.
TI
REFRQ (Output)
T3
TRCW
TRCW
Note
T2
T1
TRRW
<109>
<111>
<112>
RASn (Output)
<62>
UCAS (Output)
<108>
<110>
<61>
<113>
<110>
LCAS (Output)
CLKOUT (Output)
Note
This TRCW is always inserted regardless of the settings of the RCW0 to RCW2 bits of the RWC register.
Remarks 1.
This is the timing for the following case.
Number of waits due to the RRW0 and RRW1 bits of the RWC register (TRRW): 1
Number of waits due to the RCW0 to RCW2 bits of the RWC register (TRCW): 2
2.
n = 0 to 7
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