參數(shù)資料
型號: UPD77015
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): 34/60頁
文件大?。?/td> 424K
代理商: UPD77015
μ
PD77015, 77017, 77018
34
AC Characteristics (T
A
= –40 to +85 C, V
DD
= 2.7 to 3.6 V)
Clock
Required Timing Condition
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
CLKIN cycle time
t
cCX
PLL multiple rate: 1
30
35.7
ns
PLL multiple rate: 2
60
71.4
ns
PLL multiple rate: 4
120
143
ns
PLL multiple rate: 8
240
286
ns
CLKIN high level width
t
wCXH
13.5
t
cCX
– 13.5
– 2t
rfCX
Note
ns
CLKIN low level width
t
wCXL
13.5
t
cCX
– 13.5
– 2t
rfCX
Note
ns
CLKIN rise/fall time
t
rfCX
15
ns
Note
0.5t
cCX
– t
rfCX
13.5 (MIN.)
Switching Characteristics
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Internal clock cycle time
t
cC
Active mode
t
cCX
/N
Note
ns
HALT mode
8t
cCX
/N
Note
ns
CLKOUT cycle time
t
cCO
t
cC
ns
CLKOUT level width
t
wCO
0.5t
cCO
– 5
ns
CLKOUT rise/fall time
t
rfCO
5
ns
Note
N: PLL multiple rate (N = 1, 2, 4, 8)
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