UPD7759C NEC [NEC], UPD7759C Datasheet - Page 2

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

AEN/ WR
2
PIN CONFIGURATION (Top View)
BLOCK DIAGRAM
RESET
ASD5
ASD6
ASD7
BUSY
DRQ
GND
AVO
SAA
ALE
REF
I0
I1
I2
I3
I4
I5
I6
I7
AEN/ WR
•
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
RESET
40-pin plastic DIP
BUSY
DRQ
SAA
ALE
MD
CS
ST
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
ASD0 to ASD7
Controller
Message Select Interface
ROM Address & Speech Data Interface
System
V
ASD4
ASD3
ASD2
ASD1
ASD0
A8
A7
A6
A5
A4
A3
A2
A1
A0
CS
X2
X1
ST
MD
DD
I0 to I7
ASD0
NC
NC
NC
A0
A1
A2
A3
A4
A5
A6
A7
A8
Decoder
ADPCM
A0 to A8
40
41
42
43
44
45
46
47
48
49
50
51
52
39 38 37 36 35 34 33 32 31 30 29 28 27
1 2 3 4 5 6 7 8 9 10 11 12 13
•
52-pin plastic QFP
PD7759GC-3BH
Converter
D/A
OSC
26
25
24
23
22
21
20
19
18
17
16
15
14
X1
X2
REF
AVO
V
GND
DD
NC
ALE
DRQ
SAA
AEN / W R
I7
NC
I6
I5
I4
I3
I2
NC
PD7759