Epson SED1278F/D Spezifikationen Seite 8
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EPSON 2–1
SED1200 Series
SED1200
Series
FEATURES
• Internal display RAM to hold 20 8-bit character codes.
• Internal character generator
– CGROM: 160 JIS ASCII characters.
– CGRAM: 4 user programmable 5×8 pixel
characters
– Font: 5×7 pixel characters plus the underline
cursor.
– JIS character set using SED1200F
0A/SED1200D0A
– ASCII character set using SED1200F0B/
SED1200D
0B
• Internal LCD driver circuitry
– 50 segment driver lines
– 16 common driver lines
– Total size: Two lines of 10 characters each
(maximum). One line of 20 characters
(LCD panel dependent)
• CPU interface
– 4-bit CPU data bus
– 13 display control commands
• Low external component count
– Built in RC oscillator (using one external feedback
resistor)
– Built in LCD driver voltage-divider network.
• Implemented using low power CMOS technology
– TTL compatible CPU interface
• Power supply
– Logic: 2.5 V to 5.5 V
– LCD: 3.5 V to 5.5 V
• 80 pin QFP package SED1200F and chip (SED1200D)
OVERVIEW
The SED1200 is a Liquid Crystal Display (LCD) character
display controller-driver, capable of directly driving
displays as large as 2 lines of 10 5×8 pixel characters,
with a minimum of external components.
The SED1200 has an internal character generator (CG)
consisting of 160 JIS ASCII characters in ROM and four
user definable characters in RAM. The internal CG, a
versatile set of cursor and display control commands,
mean that the system CPU is only responsible for the
display data and commands, and not for the LCD display
itself.
- SED1200 Series 1
- CONTENTS 3
- Selection Guide 4
- LCD controller-drivers for 5
- EPSON 2–3 10
- PIN DESCRIPTION 12
- COMMAND DESCRIPTION 12
- Write Commands 13
- SPECIFICATIONS 14
- Electrical Specifications 15
- EPSON 2–9 16
- EPSON 2–11 18
- OPERATION 20
- Loading CGRAM 21
- EPSON 2–15 22
- Mechanical Specifications 22
- SS –2778 –857 23
- LCD –2778 –1048 23
- DD –2778 –1238 23
- OSC1 OSC2 24
- Command Clock (Φ) 25
- LCD Drive Waveforms 25
- EPSON 2–19 26
- EPSON 2–21 28
- LCD Display Interface 28
- CPU Interface 29
- EPSON 2–23 30
- CGRAM AREA 32
- 5 x 8 DOTS 32
- SED1200F0B/SED1200D0B 33
- EPSON 2–27 34
- EPSON 2–29 36
- EPSON 3–3 41
- EPSON 3–5 43
- EPSON 3–7 45
- 3–8 EPSON 46
- VDD = 3 V 46
- EPSON 3–9 47
- EPSON 3–11 49
- APPLICATION NOTES 54
- 3–18 EPSON 56
- EPSON 3–19 57
- 3–20 EPSON 58
- • 8 Characters/2 line 58
- • 20 Characters/2 lines 58
- • Interface with 8-bit CPU 59
- 3–22 EPSON 60
- Lower 4 bit (D 61
- EPSON 3–25 63
- CHIP SPECIFICATION 68
- . . . . . . . . 69
- EPSON 4–7 72
- <SED1222D 72
- EPSON 4–9 74
- <SED122AD 74
- DD or VSS 77
- EPSON 4–13 78
- EPSON 4–15 80
- EPSON 4–17 82
- When voltage is doubled 83
- When voltage is tripled 83
- (C, B) (0, 0) (1, 0) (1, 1) 86
- EPSON 4–23 88
- EPSON 4–25 90
- SED1220DA 90
- SED1220DB 91
- EPSON 4–27 92
- SED1220DG 92
- EPSON 4–29 94
- *: Blank 95
- 1: Display or blink on 95
- 0: Display or blink off 95
- : 1–2 Hz 95
- EPSON 4–33 98
- EPSON 4–35 100
- EPSON 4–37 102
- 80 Series MPU 102
- 68 Series MPU 102
- Serial Interface 102
- 4–38 EPSON 103
- . . . . . . . . . . . . . . 104
- 4–40 EPSON 105
- EPSON 4–41 106
- 4–42 EPSON 107
- Instruction Setup Example 108
- (Reference Only) 108
- 4–44 EPSON 109
- SED1220D 110
- CHIP:REVERSE 110
- 80series MPU 110
- DD–VSS Power ON 111
- EPSON 4–47 112
- EPSON 4–49 114
- Option List 115
- SED1225 Series 116
- LCD Controller/Drivers 116
- Technical Manual 116
- Contents 117
- FEATURES 118
- BLOCK DIAGRAM 119
- . . . . . . . . . . . . 120
- EPSON 5–5 122
- DD or VSS if PS=low 124
- LCD Driver Signals 125
- FUNCTION DESCRIPTION 126
- Power Circuit 127
- Reset Circuit 129
- . . . . . 130
- . . . . 131
- BUILT-IN MEMORIES 134
- EPSON 5–19 136
- EPSON 5–21 138
- Symbol Register 139
- EPSON 5–23 140
- Static Icon RAM 140
- (VCC) VDD 142
- (GND) VSS 142
- DC CHARACTERISTICS 143
- EPSON 5–27 144
- SIGNAL TIMING CHARACTERISTICS 145
- EPSON 5–29 146
- MPU INTERFACES (REFERENCE) 148
- LCD CELL INTERFACE 149
- EPSON 5–33 150
- EPSON 5–35 152
- Initialization 152
- Display Mode 153
- Standby Mode 153
- EPSON 5–37 154
- Sleep Mode 154
- OSC fOSC 4 × fOSC 155
- CAUTIONS 156
- SED1230 Series 157
- OVERVIEW 159
- EPSON 6–3 161
- <SED1230D 162
- EPSON 6–5 163
- <SED1231D 164
- EPSON 6–7 165
- <SED1232D 166
- EPSON 6–9 167
- <SED1233D 168
- EPSON 6–11 169
- DESCRIPTION OF PINS 170
- EPSON 6–13 171
- FUNCTIONAL DESCRIPTION 173
- EPSON 6–17 175
- EPSON 6–19 177
- Low Power Consumption Mode 178
- COMMANDS 179
- EPSON 6–23 181
- CHARACTER GENERATOR 183
- EPSON 6–27 185
- EPSON 6–29 187
- EPSON 6–31 189
- ABSOLUTE MAXIMUM RATINGS 190
- TIMING CHARACTERISTICS 193
- D0 to D7 194
- EPSON 6–37 195
- EPSON 6–39 197
- ■ System Setup 197
- EPSON 6–41 199
- SED1234/35 Series 201
- ✽A, SED123✽D✽C 203
- · · · · · · · · · · · 205
- · · · · · · 205
- <SED1234D 206
- > (1/2) 206
- EPSON 7–5 207
- > (2/2) 207
- <SED1235D 208
- EPSON 7–7 209
- EPSON 7–9 211
- EPSON 7–13 215
- Under a triple boosting 217
- Data Writing 221
- One Line Completed? 221
- RAM Address Set 221
- EPSON 7–23 225
- EPSON 7–25 227
- EPSON 7–29 231
- EPSON 7–31 233
- EPSON 7–35 237
- EPSON 7–37 239
- SED1240 Series 240
- Input bufferMPU interface 243
- LCD power circuit 243
- EPSON 8–5 246
- EPSON 8–7 248
- EPSON 8–9 250
- EPSON 8–11 252
- System Bus Connecting Pins 252
- DESCRIPTION OF FUNCTIONS 254
- EPSON 8–15 256
- EPSON 8–17 258
- EPSON 8–21 262
- DESCRIPTION OF COMMANDS 263
- EPSON 8–23 264
- EPSON 8–25 266
- EPSON 8–27 268
- EPSON 8–29 270
- [Standard display] 271
- EPSON 8–31 272
- EPSON 8–33 274
- EPSON 8–35 276
- EPSON 8–39 280
- EPSON 8–41 282
- EPSON 8–43 284
- EPSON 8–45 286
- EPSON 8–47 288
- Symbol Register RAM 289
- EPSON 8–49 290
- AC CHARACTERISTICS 296
- EPSON 8–57 298
- EPSON 8–59 300
- • •• • • 302
- (Reference) 304
- OPTIONS LIST 306
- CHIP TOP VIEW 307
- (Mold, marking area) 308
- PACKAGE OUTLINE 312
- SED1278D 313
- TERMINAL CONFIGURATION 315
- Applicable terminal 316
- · DBO to DB7 316
- Internal 316
- EPSON 9–7 317
- Write Only Instructions 317
- EPSON 9–9 319
- Read Only Instructions 319
- EPSON 9–11 321
- EPSON 9–13 323
- LCD Drive Voltages 323
- EPSON 9–15 325
- EPSON 9–17 327
- 9–18 EPSON 328
- EPSON 9–19 329
- 9–20 EPSON 330
- THE CHARACTER GENERATOR 331
- 3 to a0, specify the row 332
- 7, is ignored 332
- LCD INTERFACE 333
- · · · · · · 334
- 335
- · · · ·· · 336
- · · · ·· · · ·· · 337
- SED1181FLA 338
- · · · ·· · · ·· · · 339
- MPU INTERFACE 340
- EPSON 9–31 341
- SED1278F0A/SED1278D0A 342
- EPSON 9–33 343
- SED1278F0B/SED1278D0B 343
- SED1278F0C/SED1278D0C 344
- EPSON 9–35 345
- SED1278F0E/SED1278D0E 345
- SED1278F0G/SED1278D0G 346
- EPSON 9–37 347
- SED1278F0H/SED1278D0H 347
- APPENDIX B: PIN CONSTRUCTION 348
- EPSON 9–39 349
- Output Pin 349
- Dot-Matrix LCD Controller 350
- 10–4 EPSON 355
- Latch-up endurance 355
- Static breakdown resistance 355
- Transmission start 358
- 10–8 EPSON 359
- EPSON 10–9 360
- EPSON 10–11 362
- System Registers 362
- Note: × = don’t care 363
- EPSON 10–13 364
- Key Scanning 364
- Expanded Input Ports 364
- LED Controller 364
- DESIGN INFORMATION 365
- SED1280F 366
- 10–16 EPSON 367
- EPSON 10–17 368
- LED Matrix Connections 368
- Key Switch Matrix Connections 368
- Epson IS energy savings 370
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