uPD16312 Internal Block diagram
6-2
6-2
FRONT STANDBY PART - CIRCUIT & LAYOUT DIAGRAM
1
1
A
A
1110 A1
1200 A1
1200
440053
KEY1
P(2)
1
2
111
0
Command decoder
Display memory
16 bits x 11 words
Serial
Interface
OSC
Timing generator
key scan
Key data memory (4 x 6)
Dimming circuit
16-bit output latch
Segment dr
iv
er
m
ultiple
x
ed dr
iv
er
Data selector
11-bit shift register
Gr
id dr
iv
er
Grid
6
Grid
1
Seg
12
Seg
16
Seg
1
Seg
11
D
IN
D
OUT
CLK
STB
OSC
LED
4
LED
1
4-bit latch
V
DD
(+5V)
V
SS
(0V)
V
EE
(-30V)
42
39
44
5
6
8
9
10
7,
43
14,
38
27
15
25
26
31
32
37
uPD16312
11
5
5
5
6
13
Key
1
Key
4
/Grid
11
/Grid
7
SW
4
SW
1
4-bit latch
1
4
28
Seg
13
/Grid
10
Summary of Contents for DVD737
Page 27: ...COMPONENT CHIP LAYOUT MAPPING INFORMATION 7 5 7 5 ...
Page 32: ...7 10 7 10 TOP VIEW COMPONENT CHIP LAYOUT PART C PART C ...
Page 33: ...7 11 7 11 TOP VIEW COMPONENT CHIP LAYOUT PART D 3139 243 3088 pt3 dd wk0325 PART D ...
Page 37: ...8 1 MAIN ENCASING EXPLODED VIEW 101 ...
Page 39: ...9 1 DOCUMENT HISTORY Version 1 0 Initial release ...
