LSI LS5015

LSI
LS5015
Simple LCD micro-controller
Features :
*
*
*
*
*
6 Input pad, 4 output pad
Direct drive buzzer output.
512x11 bit ROM
20x4 bit of RAM.
4 digit plus 2 dot LCD
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*
*
*
10x3 LCD segment
32768 Crystal/RC oscillator mask option
Single 1.5V operation.
Low cost and low price.
General Description
The LS5015 is a simple micro-controller for LCD application. It has an internal ROM size of
512x11bit. A 20x4 bit of RAM. 4 digit plus 2 dot LCD format on 10x3 lcd segment.
LSI
LS5015
Functional Description
1. RC Oscillator /Crystal
The LS5015 can use either a crystal oscillator or RC oscillator to provide the internal timing by mask
option.
2. Program ROM
The LS5015 has internal 512x12 bit ROM providing simple operation. It has four internal stack.
3. Program RAM
The system has 20x4bit of program RAM (00H to 13H).
4. Buzzer Control
The system can output 2khz alarm signal. Buzzer control address at 4H.
5. LCD driver
The system has 10 LCD segment pad with 3 common pads providing 10x3 LCD segment output. It
can only support 4 digit plus 2 dot LCD format. The LCD decode the data at RAM 0,1,2,3 for the 4 digit
LCD display. The 2 dot (named: AA, BB) is controlled by RAM 12H:D2 as AA and 12H:D3 as BB.
6. I/O pad
The LS5015 has 6 input pad, I[0:5], and 4 output pad O[0:3]. The input pads can be selected (by
mask option) with/without internal pull-low resistor. The output pads can be selected by mask
option to be CMOS or OPEN DRAIN output.
2
LSI
LS5015
Pin Assignment
DESIGNATION
B [0:1]
V1, V2
VEE
T2, T1
OO
OI
VDD
GND
I[0:5]
O[0:3]
C[1:3]
S[1:10]
TYPE
DESCRIPTION
OUTPUT
OUTPUT
OUTPUT
INPUT (PL)
OUTPUT
INPUT
POWER
POWER
INPUT(PL)
OUTPUT
OUTPUT
OUTPUT
Buzzer output
Doubler output
-1.5V
TEST pin
32KHz oscillator output
32KHz oscillator input
+1.5V power supply
Ground
Input key/option
Trigger output (O[0:2])
LCD Common output
LCD Segment output
Note: (PL) – pull low
(PH) - pull high
3
LSI
LS5015
Absolute Maximum Ratings
Supply voltage Vdd - Vss..........................0 to 5V
Input voltage Vin .................................Vss to Vdd
Operating temperature Top .............-10°C to 60°C
Storing temperature Tst ...................-40°C to 70°C
Comments
Stress
above those
listed
under Absolute
Maximum
Ratings may
cause permanent damage to the device.
These are stress rating
only.
Functional operation of this device at these or any other
conditions above those indicated in the operational sections of this
specification is not implied and exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
D.C. Electrical Characteristics
(GND = 0V, Vdd = 1.5V, Ta = 25°C unless otherwise specified)
Parameter
Supply Voltage
Operating current
OSC. built-in cap
OSC. trimmer cap
Frequency stability
Buzzer output current
LCD frequency
Segment current
Common current
Trigger output current
Symbol
Vdd
Idd
Cd
Ctrim
^f/f
Ib
Flcd
Is
Ic
Ir
Min.
1.24
5
500
0.15
3.0
100
4
Typ.
1.5
2
20
64
-
Max.
1.75
5
35
10
-
Unit
V
µA
pF
pF
ppM
µA
Hz
µA
µA
µA
Conditions
No load
Vdd=1.6-1.4
Vbd-Vss=0.5
Vseg=0.2V
Vcom=0.2V
Vr-Vss=0.5
LSI
LS5015
Pad location
5
LSI
LS5015
Pad Coordinate
PAD
X(µ m)
SO[2]
SO[1]
SO[0]
SO[3]
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
C1
C2
C3
V2
V1
-1063.00
-922.75
-731.25
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1063.00
-1033.00
-898.00
-763.00
-628.00
-493.00
Y(µ m)
PAD
-909.50
-909.50
-909.50
-703.50
-568.50
-433.50
-298.50
-163.50
-28.50
163.00
298.00
433.00
568.00
703.00
909.50
909.50
909.50
909.50
909.50
VEE
KOUT
PB
OO
OI
GND
BD[0]
T1
T2
B[1]
VDD
SI[5]
SI[4]
SI[3]
SI[2]
SI[1]
SI[0]
6
X(µ m)
-358.00
-123.50
20.25
321.75
874.75
1062.75
945.25
945.25
945.25
945.25
1062.75
1062.75
1062.75
1062.75
1062.75
1062.75
1062.75
Y(µ m)
909.50
909.50
909.50
909.50
909.50
717.00
547.50
412.50
277.50
142.50
-27.00
-162.00
-300.50
-444.50
-583.00
-727.00
-865.00
LSI
LS5015
LCD DRAWING
PIN |SIG|
C1
| C2
| C3
==============================
1
|C3 |
|
| COM3
2
|C2 |
| COM2|
3
|C1 | COM1 |
|
4
|S1 | 1F
| 1E
| AA
5
|S2 | 1A
| 1G
| 1D
6
|S3 | 2F
| 1B
| 1C
7
|S4 | 2A
| 2G
| 2E
8
|S5 | 2B
| 2C
| 2D
9
|S6 | 3F
| BB
| 3E
10
|S7 | 3A
| 3G
| 3D
11
|S8 | 3B
| 3C
| 4E
12
|S9 | 4F
| 4G
| 4D
13
|S10| 4A
| 4B
| 4C
7