1
M66004SP/FP
1616-DIGIT 5X7-SEGMENT VFD CONTROLLER
×
7-SEGMENT VFD CONTROLLER
DESCRIPTION
The M66004 is a 16-digit 5
×
7-segment vacuum fluorescent
display (VFD) controller using the silicon gate CMOS tech-
nology.
It contains 160 ROM characters and 16 user-defined RAM
characters and receives display character codes and various
commands from MCU to control VFD.
FEATURES
Built in 5
×
7-dot segment character ROM
(160 characters based on JIS-C-6220. Customization is
possible.)
Built in character RAM for user definition (16 characters)
Display digit length can be changed. (from 9 to 16 digits)
One-digit display cycle setting can be changed. (2 cycles)
Dimmer is adjustable. (8 grades)
Cursor display ON or OFF is selectable. (SEG
35
output)
Built in automatic display digit increment function
Auto increment of display digit
Built in simultaneous all-digit display ON/OFF command
Connection to MCU by three signal lines, CS, SCK and
SDATA
Instruction execution with one byte*
2 general purpose output ports
Positive supply voltage V
CC
=5V
±
10%
Pull-down voltage V
P
=V
CC
-40V typ.
V
CC
-45V
*: Except for character RAM setting
max. (peak)
APPLICATION
AV equipments, vacuum fluorescent display controller for
POS system, etc.
FUNCTION
The M66004 is a 16-digit 5
×
7-segment VFD (Vacuum Fluo-
rescent Display) controller and contains 160 ROM characters
based on JIS-C-6220 which can be customized and 16 RAM
characters that user can define freely.
Character display codes and various commands are re-
ceived as 8-bit serial data from MCU.
Main functions of this IC are display digit length setting, one-
digit display cycle setting and dimmer adjustment.
It has 36 segment output pins from SEG
00
to SEG
35
and
uses 35 pins from SEG
00
to SEG
34
for character display.
SEG
35
output, which is independent of other segment, is
used for cursor display by inputting either cursor ON or OFF
command.
Once display data is fixed, display continues automatically
until new data is input. Therefore, MCU can execute other
jobs and is lightened of its load.
Additionally, the IC can control other I/O elements because it
contains two static operation output ports.
Outline 64P4B
64P2G-A
DIG
11
DIG
10
←
DIG
09
←
3
DIG
08
←
4
DIG
07
←
5
DIG
06
←
6
DIG
05
←
7
DIG
04
←
8
DIG
03
←
9
DIG
02
←
10
DIG
01
←
11
DIG
00
←
12
RESET
→
13
CS
→
14
CSK
→
15
SDATA
→
16
P1
←
17
P0
←
18
V
CC1
X
OUT
←
20
X
IN
→
21
V
SS
SEG
35
←
23
SEG
34
←
24
SEG
33
←
25
SEG
32
←
26
SEG
31
←
27
SEG
30
←
28
SEG
29
←
29
SEG
28
←
30
SEG
27
←
31
V
P
DIG
12
→
DIG
13
→
DIG
14
→
DIG
15
V
CC2
→
SEG
00
→
SEG
01
→
SEG
02
→
SEG
03
→
SEG
04
→
SEG
05
→
SEG
06
→
SEG
07
→
SEG
08
→
SEG
09
→
SEG
10
→
SEG
11
→
SEG
12
→
SEG
13
→
SEG
14
→
SEG
15
→
SEG
16
→
SEG
17
→
SEG
18
→
SEG
19
→
SEG
20
→
SEG
21
→
SEG
22
→
SEG
23
→
SEG
24
→
SEG
25
→
SEG
26
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
→
←
2
1
19
22
32
Digit outputs
Chip select input
Shift clock input
Serial data input
Reset input
Segment outputs
Digit output
Segment outputs
Output ports
Clock output
Clock input
M
MIMITSUBISHI
DIDIGITAL ASSP