參數(shù)資料
型號(hào): UPD7759C
廠商: NEC Corp.
英文描述: ADPCM SPEECH SYNTHESIZER LSIs
中文描述: 差分PcM語(yǔ)音合成器大規(guī)模集成電路
文件頁(yè)數(shù): 5/18頁(yè)
文件大?。?/td> 183K
代理商: UPD7759C
μ
PD7759
5
1.3 PIN FUNCTION FOR SLAVE MODE
Pin
(Abbre-
viation)
52-pin
QFP
Pin No.
40-pin
DIP
Pin No.
I/O
Function
I0
I1
I2
I3
I4
I5
I6
I7
11
12
15
16
17
18
19
21
4
5
6
7
8
9
Invalid.
Set at high or low level.
10
11
Output/
Input
Invalid.
Leave this pin open.
Invalid.
Leave this pin open.
Slave mode selection input.
Transition between two operation mode is not accepted
during synthesis or in the standby mode.
MD
34
21
Input
Invalid.
Set at high level.
Chip select signal input.
WR becomes valid when CS goes low.
A0
A1
A2
A3
A4
A5
A6
A7
A8
41
42
43
44
45
47
48
49
50
26
27
28
29
30
31
32
33
34
Output
ASD0
ASD1
ASD2
ASD3
ASD4
ASD5
ASD6
ASD7
51
2
3
4
5
8
9
10
35
36
37
38
39
1
2
3
Input
Input speech synthesis data from an external source.
Invalid.
Leave these pins open.
SAA
23
13
Output
ALE
25
15
Output
ST
35
22
Input
CS
38
25
Input
AEN/WR
22
12
Inputs write strobe signal for a speech synthesis data.
Input
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