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PDF ST7568 Data sheet ( Hoja de datos )
| Número de pieza | ST7568 | |
| Descripción | 68 x 102 Dot Matrix LCD Controller/Driver | |
| Fabricantes | Sitronix Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ST7568 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Sitronix
ST7568
1. INTERODUCTION
68 x 102 Dot Matrix LCD Controller/Driver
The ST7568 is a driver & controller LSI for 4-level gray scale graphic dot-matrix liquid crystal display systems. It contains 102 segment
and 68 common driver circuits. This chip is connected directly to a microprocessor, accepts. 4-line serial interface(SPI) or 8-bit parallel
interface or IIC serial interface, display data can stores in an on-chip display data RAM of 68 x 102 x 2 bits. It performs display data RAM
read/write operation with no external operating clock to minimize power consumption. In addition, because it contains power supply
circuits to drive liquid crystal, it is possible to make a display system with the fewest components.
2. FEATURES
Single chip LCD controller/driver for 4 GRAY SCALE STN LCD
4-level (White, Light Gray, Dark Gray, Black) Gray Scale Display with PWM and FRC Methods
DDRAM data [2n: 2n+1]
00
01
10
11
Gray scale
White
Light gray
Dark gray
Dark
(Accessible column address=0,1,2…99,100,101)
Driver Output Circuits
102 segment outputs / 68 common outputs
On-chip Display Data ram
- Capacity: 68X102X2=13,872 bits
Microprocessor Interface
- 8-bit parallel bi-directional interface with 6800-series or
8080-series
- 4-line SPI (serial peripheral interface) available (only
write operation)
- IIC serial interface (only write operation)
On-chip Low Power Analog Circuit
- Generation of LCD supply voltage (externally Vout
voltage supply is possible)
- Generation of intermediate LCD bias voltages
- Oscillator requires no external components (external
clock also possible)
- Voltage converter (x2, x3, x4, x5)
- Voltage regulator
- Voltage follower
- On-chip electronic contrast control function (128 steps)
External RESB (reset) pin
Supply Voltage Range
- Digital (VDD –VSS): 1.8V to 3.3V
- Analog (VDD2-VSS2): 2.4 to 3.3V
Temperature range: -30 to +85 degree
ST7568
www.DataSheet4U.com
ST7568i
6800 , 8080 ,
4-Line Interface (without IIC interface)
IIC interface
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice.
Ver 2.2
1/73 2008/01/04
1 page  
ST7568
PAD NO. PIN Name
143 COM[27]
144 COM[28]
145 COM[29]
146 COM[30]
147 COM[31]
148 COM[32]
149 T9
150 VDD
151 VDD
152 VDD
153 VDD
154 VDD
155 VDD
156 VDD2
157 VDD2
158 VDD2
159 VDD2
160 VDD2
161 VDD2
162 VDD2
163 VDD2
164 VDD2
165 VDD2
166 VDD2
167 VDD2
168 D7
169 D7
170 D6
171 D6
172 D5
173 D5
174 D4
www.DataSheet4U.com
175 D4
176 D3
177 D3
178 D2
Ver 2.2
X
-4241.5
-4166.0
-4090.5
-4015.0
-3939.5
-3864.0
-3750.0
-3675.0
-3600.0
-3525.0
-3450.0
-3375.0
-3300.0
-3225.0
-3150.0
-3075.0
-3000.0
-2925.0
-2850.0
-2775.0
-2700.0
-2625.0
-2550.0
-2475.0
-2400.0
-2325.0
-2250.0
-2175.0
-2100.0
-2025.0
-1950.0
-1875.0
-1800.0
-1725.0
-1650.0
-1575.0
Y
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
PAD NO.
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
PIN Name
D2
D1
D1
D0
D0
VDD
T0
T1
T2
T3
T4
T5
T6
T7
T8
VRS
ERD
ERD
RWR
RWR
A0
A0
CS
CS
IMS
VDD
PS
MODE
T10
VDD
OSC
OSC
V0
V0
V0
V0
5/73
X
-1500.0
-1425.0
-1350.0
-1275.0
-1200.0
-1125.0
-1050.0
-975.0
-900.0
-825.0
-750.0
-675.0
-600.0
-525.0
-450.0
-375.0
-300.0
-225.0
-150.0
-75.0
0.0
75.0
150.0
225.0
300.0
375.0
450.0
525.0
600.0
675.0
750.0
825.0
900.0
975.0
1050.0
1125.0
Y
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
-389.0
2008/01/04
5 Page 
ST7568
4. BLOCK DIAGRAM
VLCDIN
VLCDOUT
VDD2
VDD
Vss1
Vss2
PS
IMS
SEG0 TO SEG101
COM0 TO COM67
SEGMENT DRIVERS
COMMON DRIVERS
BIAS
VOLTAGE
GENERATOR
VLCD
GENERATOR
DATA LATCHES
FRC/PWM FUNCTION CIRCUIT
DISPLAY DATA RAM
(DDRAM)
[68X102X2]
COMMON
OUTPUT
CONTROLLER
CIRCUIT
RESET
OSCILLATOR
TIMING
GENERATOR
ADDRESS COUNTER
DISPLAY
ADDRESS
COUNTER
DATA
REGISTER
BUS
HOLDER
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
MPU INTERFACE(PARALLEL & SERIAL)
/RES
OSC
www.DataSheet4U.com
Ver 2.2
Fig.1 block diagram
11/73
2008/01/04
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ST7568.PDF ] | |
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