參數資料
型號: uPD70F3102GJ-33-UEN
廠商: NEC Corp.
英文描述: 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述: 32-/16-BIT單片機
文件頁數: 52/82頁
文件大?。?/td> 476K
代理商: UPD70F3102GJ-33-UEN
Preliminary Data Sheet U13844EJ2V0DS00
52
μ
PD70F3102-33
(e) Read timing (EDO DRAM) (1/3)
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
Data input setup time (to
CLKOUT
)
<26>
t
SKID
18
ns
Data input hold time (from
CLKOUT
)
<27>
t
HKID
2
ns
Delay time from OE
to data output
<37>
t
DRDOD
(0.5 + i) T – 10
ns
Row address setup time
<56>
t
ASR
(0.5 + w
RP
) T – 10
ns
Row address hold time
<57>
t
RAH
(0.5 + w
RH
) T – 10
ns
Column address setup time
<58>
t
ASC
0.5T – 10
ns
Column address hold time
<59>
t
CAH
(0.5 + w
DA
) T – 10
ns
RAS precharge time
<61>
t
RP
(0.5 + w
RP
) T – 10
ns
Column address read time (to RAS
)
<64>
t
RAL
(2 + w
CP
+ w
DA
) T – 10
ns
CAS to RAS precharge time
<66>
t
CRP
(1 + w
RP
) T – 10
ns
CAS hold time
<67>
t
CSH
(1.5 + w
RH
+ w
DA
) T – 10
ns
WE setup time (to CAS
)
<68>
t
RCS
(2 + w
RP
+w
RH
) T – 10
ns
WE hold time (from RAS
)
<69>
t
RRH
0.5T – 10
ns
WE hold time (from CAS
)
<70>
t
RCH
1.5T – 10
ns
RAS access time
<73>
t
RAC
(2 + w
RH
+ w
DA
) T – 28
ns
Access time from column address
<74>
t
AA
(1.5 + w
DA
) T – 28
ns
CAS access time
<75>
t
CAC
(1 + w
DA
) T – 28
ns
Delay time from RAS to column
address
<76>
t
RAD
(0.5 + w
RH
) T – 10
ns
RAS to CAS delay time
<77>
t
RCD
(1 + w
RH
) T – 10
ns
Output buffer turn-off delay time
(from OE)
<78>
t
OEZ
0
ns
Access time from CAS precharge
<80>
t
ACP
(1.5 + w
CP
+ w
DA
) T – 28
ns
CAS precharge time
<81>
t
CP
(0.5 + w
CP
) T – 10
ns
RAS hold time for CAS precharge
<83>
t
RHCP
(2 + w
CP
+ w
DA
) T – 10
ns
Read cycle time
<93>
t
HPC
(1 + w
DA
+ w
CP
) T – 10
ns
RAS pulse width
<94>
t
RASP
(2.5 + w
RH
+ w
DA
) T – 10
ns
CAS pulse width
<95>
t
HCAS
(0.5 + w
DA
) T – 10
ns
Off-page
<96>
t
OCH1
(2 + w
RH
+ w
DA
) T – 10
ns
Hold time from
OE to CAS
On-page
<97>
t
OCH2
(0.5 + w
DA
) T – 10
ns
Data input hold time (from CAS
)
<98>
t
DHC
0
ns
Remarks 1.
T = t
CYK
2.
w
RP
: Number of waits specified by RPCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
3.
w
RH
: Number of waits specified by RHCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
4.
w
DA
: Number of waits specified by DACxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
5.
w
CP
: Number of waits specified by CPCxx bit of register DRCn (n = 0 to 3, xx = 00 to 03, 10 to 13)
6.
i: Number of idle states inserted when a write cycle follows the read cycle.
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