UPD7759C Ver la hoja de datos (PDF) - NEC => Renesas Technology
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UPD7759C Datasheet PDF : 18 Pages
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µPD7759
1.3 PIN FUNCTION FOR SLAVE MODE
Pin
52-pin
40-pin
(Abbre-
QFP
DIP
I/O
viation) Pin No. Pin No.
Function
I0
11
4
I1
12
5
I2
15
6
I3
16
7
Input
Invalid.
I4
17
8
Set at high or low level.
I5
18
9
I6
19
10
I7
21
11
AEN/WR
22
Output/
12
Input
Inputs write strobe signal for a speech synthesis data.
SAA
Invalid.
23
13
Output Leave this pin open.
ALE
Invalid.
25
15
Output Leave this pin open.
Slave mode selection input.
MD
34
21
Input Transition between two operation mode is not accepted
during synthesis or in the standby mode.
Invalid.
ST
35
22
Input
Set at high level.
Chip select signal input.
CS
38
25
Input
WR becomes valid when CS goes low.
A0
41
26
A1
42
27
A2
43
28
A3
44
29
A4
45
30
Output Invalid.
A5
47
31
Leave these pins open.
A6
48
32
A7
49
33
A8
50
34
ASD0
51
35
ASD1
2
36
ASD2
3
37
ASD3
4
38
Input Input speech synthesis data from an external source.
ASD4
5
39
ASD5
8
1
ASD6
9
2
ASD7
10
3
5
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