參數資料
型號: UPD77015GC
廠商: NEC Corp.
元件分類: 數字信號處理
英文描述: 16 bits, Fixed-point Digital Signal Processor
中文描述: 16位定點數字信號處理器
文件頁數: 36/60頁
文件大?。?/td> 424K
代理商: UPD77015GC
μ
PD77015, 77017, 77018
36
Recommended Oscillator Circuit Constants
Manufacturer Name
Part Number
Frequency (MHz)
Recommended Constants
C1 [pF]
C2 [pF]
Ceramic Resonator
TDK
CCR33.0MC6
33.0
Internal
MURATA
Manufacturing
CSA33.00MXZ040
5
5
CST33.00MXW040
Internal
CSACV33.00MX040
5
5
CSTCV33.00MX040
Internal
Crystal Resonator
DAISHINKU
AT-49
10
10
DSX840G
Remark
Recommended oscillator circuit constants may differ on the wiring capacitance of the target board
the customer designed. When using a resonator for the target system, let manufacturer evaluate.
Reset, Interrupt
Required Timing Condition
Parameters
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
RESET low level width
t
W(RL)
Crystal resonator is input,
at power on or STOP mode
3
Note 1
ms
External clock is input,
at power on or STOP mode
100
Note 1
μ
s
Active mode or HALT mode
4t
cC
Note 2
ns
RESET recovery time
t
rec(R)
4t
cC
ns
INT1-INT4 low level width
t
W(INTL)
3t
cC
Note 2
ns
INT1-INT4 recovery time
t
rec(INT)
3t
cC
ns
Note 1.
The t
w(RL)
indicates a time between crystal resonator or oscillator starts to provide clock and PLL
becomes stable. The t
w(RL)
depends on the rating of crystal resonator or oscillator. At power on, the
t
w(RL)
is measured after the point that power supply voltage reaches to 0.8 V
DD
.
2.
Note that, during HALT mode, t
cC
is extended to 8 times as long as that of Active mode.
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