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PDF ST7556 Data sheet ( Hoja de datos )
| Número de pieza | ST7556 | |
| Descripción | 65 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 ST7556 (archivo pdf) en la parte inferior de esta página. Total 43 Páginas | ||
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ST
Sitronix
ST7556
65 x 102 Dot Matrix LCD Controller/Driver
1. INTRODUCTION
The ST7556 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segment
and 65 common with 1 ICOM driver circuits. This chip is connected directly to a microprocessor, accepts 4-line serial
interface (SPI) or 8-bit parallel interface, display data can store in an on-chip display data RAM of 66 x 102 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
Driver Output Circuits
(external clock also possible)
102 segment outputs / 65+1 common outputs
- Voltage converter (x4)
On-chip Display Data ram
- Voltage regulator (temperature gradient
- Capacity: 66X102=6,732 bits
-0.05%/°C)
Microprocessor Interface
- Voltage follower
- 8-bit parallel bi-directional interface with
- On-chip electronic contrast control function (128
6800-series or 8080-series
steps)
- 4-line SPI (serial peripheral interface) available
- Liquid crystal driving voltage :
(only write operation)
V0 -VSS = max 12 V (external power supply)
On-chip Low Power Analog Circuit
- Generation of LCD supply voltage (externally
External RESB (reset) pin
Vout voltage supply is possible)
Logic supply voltage range VDD -VSS
- Generation of intermediate LCD bias voltages
- 1.8 to 3.3V
Temperature range: -30 to +85 degree
- Oscillator requires no external components
www.DataSheet4U.com
Ver 2.2
1/43
2005/10/05
1 page  
ST7556
PAD NO. PIN Name
143 COM[27]
144 COM[28]
145 COM[29]
146 COM[30]
147 COM[31]
148 Reserve
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.DataS1h7e5et4U.com D4
176 D3
177 D3
178 D2
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
Ver 2.2
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
T11
T10
VDD
OSC
OSC
TMX
TMY
V0
V0
5/43
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
2005/10/05
5 Page 
ST7556
4. BLOCK DIAGRAM
www.DataSheet4U.com
Ver 2.2
Fig.1 block diagram
11/43
2005/10/05
11 Page | ||
| Páginas | Total 43 Páginas | |
| PDF Descargar | [ Datasheet ST7556.PDF ] | |
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