91400 RM (IM) HO No.6725-1/18
Ver.1.04
22698
Preliminary
Overview
The LC573904 is a CMOS 4-bit microcontroller that operates on low voltage and very low power consumption. It also
contains 4K-byte ROM, 128
4 bits RAM, LCD drivers and melody function.
Features
(1) ROM
:4096
8 bits
(2) RAM
:128
4 bits
(3) Cycle Time
Cycle Time
Oscillation source
Oscillation frequency
Power supply voltage
Power source
122
s
Crystal oscillation
32.768kHz
27
s
RC oscillation
150kHz
1.20 - 1.65V
Ag Battery
122
s
Crystal oscillation
32.768kHz
27
s
RC oscillation
150kHz
2.50 - 3.60V
Li Battery
122
s
Crystal oscillation
32.768kHz
8
s
RC oscillation
500kHz
2.00 - 6.00V
External
voltage supply
(4) Input / Output Terminals
- Input ports
: 4 terminals (S-port : 4 terminals)
- Input / Output ports
: 8 terminals (P0 port : 4 terminals, P1 port : 4 terminals)
[Notes] When using the P1 port for output, the "L" level hold Tr. of P1 should be OFF.
If P1 port becomes "H" level with "L" level hold Tr. on, it causes the through current from VDD to GND
and increases the current consumption.
- Output ports
: 2 terminals (Buzzer / melody output terminal : 1 terminal,
General output port : 1 terminal)
- LCD segment output ports
: 32 terminals (Possible to use output port by mask option)
- LCD common output ports
: 4 terminals
4-Bit Microcontroller
with 4K-Byte ROM, 120
4Bits RAM and LCD Driver
LC573904
Ordering number : ENN*6725
CMOS IC
LC573904
No.6725-2/18
(5) LCD driver
Drivable LCD panel
Number of drivable LCD segment output
1/2 bias 1/4 duty
128 segments
1/2 bias 1/3 duty
96 segments
1/2 bias 1/2 duty
64 segments
STATIC 32
segments
(Possible to use output port by mask option.)
- Built-in Step-up / Step-down circuit
(6) Melody/Buzzer
- Melody function
Octave
: 3 octaves
Time of musical note
: specified by program
- Buzzer output
(7) Base timer
- 15-bit base timer for timekeeping
(8) HALT release
- Five vectors
1. 15-bit base timer (500ms overflow output)
2. 15-bit base timer (output every 32ms)
3. S-port
4. P1-port
5. 1/10 second pulse
(9) Stand-by mode
- HALT mode
The program operation will be stopped in this mode. This mode is released by system reset and 5 vectors for HALT
release above-mentioned.
(10) System reset
- RES terminal
- Reset by setting S1 to S4 terminals to "H" level simultaneously.
(11) Oscillation
- Two oscillation circuits
- 32.768kHz crystal oscillation / RC oscillation
(12) Power supply
- Ag-battery
: VDD1-VSS=1.20V to 1.65V, Step-up voltage (VDD2-VSS=2.4V to 3.3V)
- Li-battery
: VDD2-VSS=2.50V to 3.60V, Step-down voltage (VDD1-VSS=1.25V to 1.8V)
- External voltage supply : VDD2-VSS=2.00V to 6.00V, Step-down voltage (VDD1-VSS=1.3V to 3.0V)
(13) Shipping form
- Bare chip, QFP64
(14) The development tool
- Evaluation chip
: LC5797
- Emulator
: EVA520 + TB5739 + DCB-1A
LC573904
No.6725-3/18
Pad assignment
Chip size (X
Y)
: 2.63mm
2.89mm
Chip thickness
: 480
m
Pad size
: 116
m
116m
Note:
When a Lithium battery has been selected as the power supply, please note the following points.
There are two modes of use for the lithium battery: Backup mode and Normal mode (backup flag off). In backup mode, the
battery potential is applied directly to the oscillation circuit, whereas in Normal mode only half the battery potential is applied.
Because of the different voltage applied to the oscillation circuit in each mode, there may be a difference in the generated
oscillation frequency. When entering backup mode a corresponding error will arise. If timing accuracy is required (for clocks,
etc), please bear in mind the above in the program design.
SEG1
COM2
TEST
RCOUT
RCIN
VSS
OSCOUT
OSCIN
RES
S1
S2
32HZ
T3
CUP2
CUP1
COM1
SEG32
LIGHT
ALM
VDD2
VDD1
BAK
S4
S3
P10
P11
P12
P13
P00
P01
P02
P03
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
61
62
63
64
1
2
3
4
5
6
7
8
9
10
11
X
Y
CO
M3
SE
G
16
SE
G
15
SE
G
14
SE
G
13
SE
G
12
SE
G
11
SE
G
10
SE
G
9
SE
G
8
SE
G
7
SE
G
6
SE
G
5
SE
G
4
SE
G
3
SE
G
2
CO
M3
SE
G
1
7
SE
G
1
8
SE
G
1
9
SE
G
2
0
SE
G
2
1
SE
G
2
2
SE
G
2
3
SE
G
2
4
SE
G
2
5
SE
G
2
6
SE
G
2
7
SE
G
2
8
SE
G
2
9
SE
G
3
0
SE
G
3
1
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
LC573904
No.6725-4/18
Pad name and coordinates
Coordinates Coordinates
QFP64
PIN No.
Pad
No.
Pad
Name
X
m Y
m
QFP64
PIN No.
Pad
No.
Pad
Name
X
m Y
m
5 1
BAK -1065 645 37 33
32HZ 1065
-505
6 2
S4
-1065 455 38 34
S2
1065
-380
7 3
S3
-1065 330 39 35
S1
1065
-255
8 4
P10 -1065 170 40 36
RES
1065
-130
9 5
P11 -1065 5 41 37
OSCIN 1065 -5
10 6
P12 -1065 -155 42 38
OSCOUT
1065
115
11 7
P13 -1065 -315 43 39
VSS
1065
300
12 8
P00 -1065 -475 44 40
RCIN 1065
490
13 9
P01 -1065 -635 45 41
RCOUT 1065
615
14 10
P02
-1065 -800 46 42
TEST
1065 740
15 11
P03
-1065 -960 47 43
COM2 1065 865
16 12
COM4 -1080 -1205 48 44
SEG1
1065
1005
17 13
SEG17 -940 -1205 49 45
SEG2
1075
1205
18 14
SEG18 -790 -1205 50 46
SEG3
935
1205
19 15
SEG19 -650 -1205 51 47
SEG4
810
1205
20 16
SEG20 -525 -1205 52 48
SEG5
685
1205
21 17
SEG21 -400 -1205 53 49
SEG6
560
1205
22 18
SEG22 -275 -1205 54 50
SEG7
435
1205
23 19
SEG23 -150 -1205 55 51
SEG8
310
1205
24 20
SEG24 -25 -1205 56 52
SEG9
185
1205
25 21
SEG25 100 -1205 57 53
SEG10
60
1205
26 22
SEG26 225 -1205 58 54
SEG11
-65
1205
27 23
SEG27 350 -1205 59 55
SEG12 -190
1205
28 24
SEG28 475 -1205 60 56
SEG13 -315
1205
29 25
SEG29 600 -1205 61 57
SEG14 -440
1205
30 26
SEG30 725 -1205 62 58
SEG15 -565
1205
31 27
SEG31 865 -1205 63 59
SEG16 -705
1205
32 28
SEG32 1065 -1185 64 60
COM3 -855
1205
33 29
COM1 1065
-1035 1 61
LIGHT -1065
1195
34 30
CUP1 1065 -895 2 62
ALM -1065
1070
35 31
CUP2 1065 -770 3 63
VDD2 -1065 895
36 32
T3
1065 -630
4 64
VDD1 -1065
770
The pad coordinates are such that the chip center is taken as the origin and the values for (X, Y) represent the coordinates of the
center point of each pad.
Substrate must be connected to VSS or left open.
LC573904
No.6725-5/18
Package Dimension
(unit : mm)
3159
SANYO : QIP-64E
Pin Assignment QIP64E
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
COM3
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SE
G
1
CO
M2
T
EST
RCO
UT
RCI
N
VS
S
O
S
CO
UT
O
S
CI
N
R
ES
S1
S2
32H
Z
T3
CUP
2
CUP
1
CO
M1
LI
GH
T
ALM
VD
D
2
VD
D
1
BA
K
S4
S3
P10
P11
P12
P13
P00
P01
P02
P03
CO
M4
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
1 2 3 4 5 6 7 8 9 10 11 12
13
14 15 16
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