91400 RM (IM) HO No.6726-1/18
Ver.1.02
22698
Preliminary
Overview
The LC573202A is a CMOS 4-bit microcontroller that operates on low voltage and very low power consumption. It also
contains 2K-byte ROM, 64
4 bits RAM, LCD drivers and melody function.
Features
(1) Read-Only Memory (ROM)
- 2048
8 bits
(2) Random Access Memory (RAM)
- 64
4 bits
(3) Cycle Time
Cycle time
Oscillation source
Oscillation Frequency
Power supply voltage
Power source
Crystal oscillation
122
s
RC oscillation
32.768kHz
1.30 - 1.65V
Ag Battery
122
s
Crystal oscillation
32.768kHz
2.60 - 3.60V
Li Battery
Crystal oscillation
122
s
RC oscillation
32.768kHz
2.00 - 6.00V
External voltage
supply
(4) Input/Output ports
- Input ports
: 6 ports (S-port : 4 terminals, M-port : 2 terminals)
- Output ports : 1 port (Buzzer output/General output port : mask option changeover)
- LCD segment output ports : 25 terminals
(Possible to use output port (SEG13 to SEG25) : by mask option)
- LCD common output ports : 4 terminals
4-Bit Microcontroller
with 2K-Byte ROM, 64
4Bits RAM and LCD Driver
LC573202A
Ordering number : ENN
*
6726
CMOS IC
LC573202A
No.6726-2/18
(5) LCD driver
Drivable LCD panel
Number of drivable LCD segment output
1/2bias 1/4duty
100 segments
1/2bias 1/3duty
75 segments
1/2bias 1/2duty
50 segments
STATIC 25
segments
(Possible to use output port by mask option.)
- Built-in Step-up/Step-down circuit
(6) Melody/Buzzer (When buzzer output is selected on output port by mask option.)
- Melody function
Octave
: 3 octaves
Time of musical note
: specified by program
- Buzzer output
- Possible to use general output by mask option.
(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. M-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
- 32.768kHz crystal oscillation/External RC oscillation (mask option)
(Selectable built-in or external capacitor for crystal oscillation by mask option.)
(12) Power supply
- Ag-battery
: VDD1-VSS=1.30V to 1.65V, Step-up voltage (VDD2-VSS=2.4V to 3.3V)
- Li-battery
: VDD2-VSS=2.60V to 3.60V, Step-down voltage (VDD1-VSS=1.3V to 1.8V)
- External voltage supply : VDD2-VSS=2.00V to 6.00V, Step-down voltage (VDD1-VSS=1.3V to 3.00V)
(LCD display voltage : VDD2-VSS
2.60V)
(13) Shipping form
- Bare chip, QIP48E
(14) The development tool
- Evaluation chip
: LC5797
- Emulator
: EVA520 + TB5734 + DCB-1A
LC573202A
No.6726-3/18
Pad assignment
Chip thickness
: 480
m
Chip size (X
Y)
: 2.54mm
2.27mm
Pad size
: 120
m
120
m
Pad pitch
: 140
m minimum
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
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
CO
M2
T
EST
O
S
CO
UT
OSC
I
N
RE
S
S1
S2
3
2
Hz
T3
CUP
2
CUP
1
CO
M1
CO
M3
OU
T
VD
D
2
VD
D
1
BA
K
VS
S
S4
S3
M1
M2
CO
M4
SE
G
1
3
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
36 35 34 33 32 31 30 29 28 27 26 25
1 2 3 4 5 6 7 8 9 10
11
12
LC573202A
No.6726-4/18
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
1 1
COM3
-700
-1030 25 25
COM1 840
1030
2 2
OUT -560
-1030 26 26
CUP1 700
1030
3 3
VDD2
-420
-1030 27 27
CUP2 560
1030
4 4
VDD1
-275
-1030 28 28
T3
420
1030
5 5
BAK -135
-1030 29 29
32HZ 280
1030
6 6
VSS
5
-1030 30 30
S2
140
1030
7 7
S4
145
-1030 31 31
S1
0
1030
8 8
S3
285
-1030 32 32
RES -140
1030
9 9
M1 425
-1030 33 33
OSCIN
-280
1030
10
10 M2
565 -1030
34
34 OSCOUT -420 1030
11
11 COM4
705 -1030
35
35 TEST
-560 1030
12 12
SEG13 845
-1030 36 36
COM2 -700
1030
13 13
SEG14 895 -775 37 37
SEG1 -895 765
14 14
SEG15 895 -635 38 38
SEG2 -895 625
15 15
SEG16 895 -495 39 39
SEG3 -895 485
16 16
SEG17 895 -355 40 40
SEG4 -895 345
17 17
SEG18 895 -215 41 41
SEG5 -895 205
18 18
SEG19 895 -75 42 42
SEG6 -895 65
19 19
SEG20 895 65 43 43
SEG7 -895 -75
20 20
SEG21 895 205 44 44
SEG8 -895
-215
21 21
SEG22 895 345 45 45
SEG9 -895
-355
22 22
SEG23 895 485 46 46
SEG10 -895
-495
23 23
SEG24 895 625 47 47
SEG11 -895
-635
24 24
SEG25 895 765
48 48
SEG12 -895
-775
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.
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