參數(shù)資料
型號: UPD77015GC
廠商: NEC Corp.
元件分類: 數(shù)字信號處理
英文描述: 16 bits, Fixed-point Digital Signal Processor
中文描述: 16位定點數(shù)字信號處理器
文件頁數(shù): 38/60頁
文件大?。?/td> 424K
代理商: UPD77015GC
38
μ
PD77015, 77017, 77018
External Data Memory Access
Required Timing Condition
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Read data setup time
t
suDDRD
15
ns
Read data hold time
t
hDDRD
0
ns
WAIT setup time
t
suWA
12
ns
WAIT hold time
t
hWA
0
ns
Switching Characteristics
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Address output delay time
t
dDA
8
ns
Address output hold time
t
hDA
0
ns
MRD output delay time
t
dDR
8
ns
MRD hold time
t
hDR
0
ns
Write data output valid time
t
vDDWD
16
ns
Write data output hold time
t
hDDWD
0
ns
MWR output delay time
t
dDW
0.25t
cC
– 5
ns
MWR setup time
t
suDW
0
ns
MWR low level width
t
wDWL
0.5t
cC
– 3
+ t
cDW
Note
ns
MWR high level width
t
wDWH
0.5t
cC
– 5
ns
Note
t
cDW
: Data wait cycle
External Data Memory Access Timing (Read)
t
suDDRD
t
hDR
t
hWA
CLKOUT
DA0 -
DA13,
X/Y
D0 - D15
MRD
WAIT
t
dDA
t
dDR
t
suWA
t
suWA
t
hWA
t
hDDRD
t
hDA
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