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參數(shù)資料
| 型號(hào)： | LC83025E |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 數(shù)字信號(hào)處理 |
| 英文描述： | Digital Signal Processor for Karaoke Products |
| 中文描述： | 數(shù)字信號(hào)處理器的卡拉OK產(chǎn)品 |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大?。?/td> | 262K |
| 代理商： | LC83025E |
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Electrical Characteristics 1
at Ta = –30 to +70°C, all V
DD
= 4.75 to 5.25 V, all V
SS
= 0 V unless otherwise specified
No. 4977-8/15
LC83025E
Parameter
Symbol
Conditions
min
typ
max
Unit
Note
I
IL
1
I
IL
2
I
IL
3
RES, V
IN
= V
SS
(Input pins with built-in pull-up resistor)
P0 to P2, V
IN
= V
SS
Other input-only pins
–250
–100
μA
8
Input low level current
–10
μA
–10
μA
I
IH
1
SELC, SAIF, SAOF, V
IN
= V
DD
(Input pins with built-in pull-down resistor)
100
250
μA
8
Input high level current
I
IH
2
I
IH
3
V
OH
1
V
OH
2
V
OL
1
V
OL
2
I
OFF
C
IO
P0 to P2, V
IN
= V
DD
(n-channel transistor: off)
Other input-only pins
10
μA
10
μA
Output high level voltage
I
OH
= –0.4 mA
I
OH
= –50 μA
I
OL
= 2 mA
I
OL
= 10 mA
V
O
= V
SS
, V
DD
4.0
4.98
V
1, 8
V
DD
– 1.2
4.997
V
2, 3, 8
Output low level voltage
0.065
0.4
V
1, 8
0.32
1.5
V
2, 3, 8
Output off leakage current
–40
+40
μA
I/O capacitance
10
pF
[Audio Data Output Timing]
Output data hold time
t
OH
t
OD
BCKO and ASO: shown in Figure 7.
–30
ns
7
Output data delay time
50
ns
7
[External DRAM Access Timing]
RAS high pulse width
t
RP
t
RAS
t
CP
t
CAS
t
PC
t
RCD
t
CSH
t
RSH
t
ASR
t
RAH
t
ASC
t
CAH
t
WP
t
WCS
t
WCH
t
DSO
t
DHO
C1
80
ns
7
RAS low pulse width
700
ns
7
CAS high pulse width
50
ns
7
CAS low pulse width
95
ns
7
CAS cycle time
175
ns
7
RAS to CAS delay time
60
ns
7
CAS hold time
170
ns
7
RAS hold time
Timing for output to the external DRAM.
Shown in Figure 8.
95
ns
7
RAS address setup time
60
ns
7
RAS address hold time
20
ns
7
CAS address setup time
30
ns
7
CAS address hold time
90
ns
7
DWRT pulse width
95
ns
7
Write command setup time
12
ns
7
Write command hold time
65
ns
7
Output data setup time
30
ns
7
Output data hold time
100
ns
7
Crystal oscillator
OSC1 and OSC2: shown in Figure 2.
13
pF
8
C2
29
pF
8
Current drain
L
V
DD
1, V
DD
2, V
DD
3; oscillator frequency: 33.8688 MHz
1.5
μH
8
I
DD
60
95
mA
9
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