UPD7759C NEC [NEC], UPD7759C Datasheet - Page 5

• Manufacturer Part Number: UPD7759C
• Description: ADPCM SPEECH SYNTHESIZER LSIs
• Manufacturer: NEC [NEC]

1.3 PIN FUNCTION FOR SLAVE MODE
(Abbre-
viation)
I0
I1
I2
I3
I4
I5
I6
I7
AEN/WR
SAA
ALE
MD
ST
CS
A0
A1
A2
A3
A4
A5
A6
A7
A8
ASD0
ASD1
ASD2
ASD3
ASD4
ASD5
ASD6
ASD7
Pin
Pin No.
52-pin
QFP
11
12
15
16
17
18
19
21
22
23
25
34
35
38
41
42
43
44
45
47
48
49
50
51
10
2
3
4
5
8
9
Pin No.
40-pin
DIP
10
11
12
13
15
21
22
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
4
5
6
7
8
9
1
2
3
Output/
Output
Output
Output
Input
Input
Input
Input
Input
Input
I/O
Invalid.
Set at high or low level.
Inputs write strobe signal for a speech synthesis data.
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.
Invalid.
Set at high level.
Chip select signal input.
WR becomes valid when CS goes low.
Invalid.
Leave these pins open.
Input speech synthesis data from an external source.
Function
PD7759
5