Epson SED1225 Series Bedienungsanleitung

SED1225 Series

LCD Controller/Drivers

Technical Manual

– i –

Contents

OUTLINE .............................................................................................................................................................3–1

FEATURES..........................................................................................................................................................3–1

BLOCK DIAGRAM ...............................................................................................................................................3–2

PIN ASSIGNMENT ..............................................................................................................................................3–3

PIN DESCRIPTION .............................................................................................................................................3–6

FUNCTION DESCRIPTION.................................................................................................................................3–9

COMMAND ........................................................................................................................................................3–13

COMMAND LIST ...............................................................................................................................................3–16

BUILT-IN MEMORIES .......................................................................................................................................3–17

MAXIMUM ABSOLUTE RATINGS ....................................................................................................................3–25

DC CHARACTERISTICS...................................................................................................................................3–26

SIGNAL TIMING CHARACTERISTICS .............................................................................................................3–28

MPU INTERFACES (REFERENCE) .................................................................................................................3–31

LCD CELL INTERFACE ....................................................................................................................................3–32

LCD DRIVE WAVEFORMS (B WAVEFORMS).................................................................................................3–34

EXAMPLE OF INSTRUCTION SETUP (REFERENCE)....................................................................................3–35

OPTION LIST ....................................................................................................................................................3–38

CAUTIONS ........................................................................................................................................................3–40

SED1225

Series

EPSON 3–1

SED1225 Series

SED1225

Series

OUTLINE

TheSED1225 dot-matrixLCD ControllerDriver receives

4-bit, 8-bit, or serial data from the microprocessor and

displays up to 36 characters, four user-defined characters,

and up to 120 symbols.

Up to 256 types of built-in character generator ROMs are

provided. Each character font has a 5×8-dot structure.

Also, the user-defined character RAM contains four

5×8-dot characters. In addition, a symbolic register can

be used for flexible symbol display. The Driver featuring

the very low power consumption can drive a handy

terminal unit in either Sleep or Standby mode with the

minimum power consumption.

FEATURES

• Built-in display data RAM

Can display up to 36 characters, 4 user-defined

characters, and 120 symbols.

• Built-in CGROM (for 256-character display),

CGRAM(for4-characterdisplay),andsymbolregister

(for 120 symbol display)

• No. of display columns by lines

Normal mode: (12 columns plus 4 signal segments) ×

3 line + 120 symbols + 10 static symbols

Standby mode: 10 static symbols

• Built-in C&R oscillators

• Available external clock input

• High-speed MPU interfaces

Interface to both 68- and 80-series MPUs

Support of 4/8-bit interface

• Support of serial interface

• Character font: 5x8 dots

• Duty ratio: 1/18, 1/26

• Simple command setup

• Built-in LCD drive power circuit: Power amp and

regulator

• Built-in electronic controls

• Very low power consumption

30 µA (including the operating current of the built-in

power supply during normal operation)

10 µA (Static icon display during Standby operation

5 µA (Display off during Sleep operation)

• Power supplies

VDD – Vss: –1.7 to –3.6 V

VDD – V5: –3.0 to –6.0 V

• Wide operating temperature range: Ta=-30 to +85°C

• CMOS process

• Package design

Chip (with gold bump): SED1225D✽B

TCP: SED1225T✽✽

• This IC package is not designed to have a radiation or

strong light resistance.

3–2 EPSON

SED1225 Series

BLOCK DIAGRAM

CGROM

CGRAM

Cursor

Control

COM1 to 24

COMS1,2

SEG1 to 60

SEGS1,2,4,5

COMSA

SEGSA to J

XLE1 XLE2

XCK

OCA

OCB

OCC

OCD

OCE

D6(SCL)

D7(SI)

RES

XCS

XWR(E)

C86

REG1

REG2

Input Buffer

MPU Interface

Timing Generator

LCD Driver

Address

Counter

Command

Decoder

LED

Driver Segment

Driver COM

Driver

Static

Icon

Driver

DDRAM

Symbol

OSC

Refresh

Address

Counter

EPSON 3–3

SED1225 Series

SED1225

Series

PIN ASSIGNMENT

SED1225D✽✽

↑

CGROM pattern version number

Chip size: 7.85 ×1.97 mm

Pad pitch: 90 µm (min)

Chip thickness (Reference): 625 µm

Au bump specifications

Bump size:

Pad Nos. 59 to 72, and 155 to 171: 78 µm ×59 µm

Pad Nos. 1 to 58, and 73 to 154: 59 µm ×78 µm

Bump height (Reference): 22.5 µm

(0,0)

155

171

581

73154

Top View

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . .

. .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

: Dummy PAD

: PAD

3–4 EPSON

SED1225 Series

Pad coordinates (1/2)

1 Dummy -3768 -822

2 Dummy -3678 -822

3 A0 -3349 -822

4 XWR(E) -3200 -822

5 XCS -3050 -822

6 D7(SI) -2901 -822

7 D6(SCL) -2751 -822

8 D5 -2602 -822

9 D4 -2452 -822

10 D3 -2303 -822

11 D2 -2153 -822

12 D1 -2004 -822

13 D0 -1854 -822

14 XLE1 -1705 -822

15 XLE1 -1615 -822

16 XLE2 -1466 -822

17 XLE2 -1376 -822

18 VDD -1286 -822

19 VDD -1197 -822

20 VSS -1107 -822

21 VSS -1017 -822

22 V5-868 -822

23 V5-778 -822

24 V4-629 -822

25 V4-539 -822

26 V3-389 -822

27 V3-300 -822

28 V1-150 -822

29 V1-60 -822

30 (VREG1) 89 -822

31 (VREG1) 179 -822

32 VREG2 328 -822

33 VREG2 418 -822

34 OCA 567 -822

35 OCA 657 -822

36 OCB 807 -822

37 OCB 896 -822

38 OCC 1046 -822

39 OCC 1136 -822

40 OCD 1285 -822

41 OCD 1375 -822

42 OCE 1524 -822

43 OCE 1614 -822

44 VSS 1718 -822

45 VSS 1808 -822

46 C86 1973 -822

47 PS 2122 -822

48 IF 2272 -822

49 RES 2421 -822

50 XCK 2571 -822

51 VS1 2720 -822

52 (FSA) 2893 -822

53 (FSB) 3065 -822

54 (FSC) 3237 -822

55 (FS3) 3409 -822

56 (VDD) 3589 -822

57 (VDD) 3678 -822

58 (VDD) 3768 -822

59 (FS2) 3758 -628

60 (FS1) 3758 -456

61 (FS0) 3758 -283

62 COMSA 3758 -179

63 COMS1 3758 -90

64 COM1 3758 0

65 COM2 3758 90

66 COM3 3758 179

67 COM4 3758 269

68 COM5 3758 359

69 COM6 3758 449

70 COM7 3758 538

71 COM8 3758 628

72 COMS1 3758 718

73 Dummy 3768 822

74 Dummy 3678 822

75 SEGS1 3409 822

76 SEGS2 3320 822

77 SEG1 3230 822

78 SEG2 3140 822

79 SEG3 3050 822

80 SEG4 2961 822

81 SEG5 2871 822

82 SEG6 2781 822

83 SEG7 2692 822

84 SEG8 2602 822

85 SEG9 2512 822

86 SEG10 2423 822

PAD Coordinate

No. Name X Y PAD Coordinate

No. Name X Y

Note 1 : Set the pins VDD of Nos. 56 to 58 and the pins VRBG1 of Nos. 30 and 31 to the floating

state.

2 : Since the pins FS* of Nos. 52 to 55 and 59 to 61 are for fuse adjustment, set them to the

floating state.

EPSON 3–5

SED1225 Series

SED1225

Series

Pad coordinates (2/2)

87 SEG11 2333 822

88 SEG12 2243 822

89 SEG13 2153 822

90 SEG14 2064 822

91 SEG15 1974 822

92 SEG16 1884 822

93 SEG17 1795 822

94 SEG18 1705 822

95 SEG19 1615 822

96 SEG20 1526 822

97 SEG21 1436 822

98 SEG22 1346 822

99 SEG23 1256 822

100 SEG24 1167 822

101 SEG25 1077 822

102 SEG26 987 822

103 SEG27 898 822

104 SEG28 808 822

105 SEG29 718 822

106 SEG30 629 822

107 SEG31 539 822

108 SEG32 449 822

109 SEG33 359 822

110 SEG34 270 822

111 SEG35 180 822

112 SEG36 90 822

113 SEG37 1 822

114 SEG38 -89 822

115 SEG39 -179 822

116 SEG40 -268 822

117 SEG41 -358 822

118 SEG42 -448 822

119 SEG43 -538 822

120 SEG44 -627 822

121 SEG45 -717 822

122 SEG46 -807 822

123 SEG47 -896 822

124 SEG48 -986 822

125 SEG49 -1076 822

126 SEG50 -1165 822

127 SEG51 -1255 822

128 SEG52 -1345 822

129 SEG53 -1435 822

130 SEG54 -1524 822

131 SEG55 -1614 822

132 SEG56 -1704 822

133 SEG57 -1793 822

134 SEG58 -1883 822

135 SEG59 -1973 822

136 SEG60 -2062 822

137 SEGS4 -2152 822

138 SEGS5 -2242 822

139 Dummy -2332 822

140 Dummy -2422 822

141 Dummy -2512 822

142 COM24 -2602 822

143 COM23 -2692 822

144 COM22 -2781 822

145 COM21 -2871 822

146 COM20 -2961 822

147 COM19 -3050 822

148 COM18 -3140 822

149 COM17 -3230 822

150 COM16 -3320 822

151 COM15 -3409 822

152 Dummy -3589 822

153 Dummy -3678 822

154 Dummy -3768 822

155 COM14 -3758 718

156 COM13 -3758 628

157 COM12 -3758 538

158 COM11 -3758 449

159 COM10 -3758 359

160 COM9 -3758 269

161 COMS2 -3758 179

162 SEGSA -3758 90

163 SEGSB -3758 0

164 SEGSC -3758 -90

165 SEGSD -3758 -179

166 SEGSE -3758 -269

167 SEGSF -3758 -359

168 SEGSG -3758 -449

169 SEGSH -3758 -538

170 SEGSI -3758 -628

171 SEGSJ -3758 -718

PAD Coordinate

No. Name X Y PAD Coordinate

No. Name X Y

3–6 EPSON

SED1225 Series

PIN DESCRIPTION

Power Supply Pins

Notes: Two VSS pins are provided. As they are commonly connected inside the IC, an input into any VSS can be used

if power impedance is low. To have the enough noise resistance, however, the VSS power input from each pin

is recommended.

LCD Power Pins

LED Drive Terminal

Pin Name I/O Description No. of Pins

VDD Power supply Connects to the logic power supply. This is common to the Vcc power pin of 1

the MPU.

VSS Power supply 0V power pin connected to system ground (GND) 2

V1, V3Power supply Multi-level LCD drive power supplies. A capacitor is required for external 4

V4, V5stabilization.

VS1 OOutput pin of oscillator (OSC) power voltage. Do not connect any external 1

load to this pin.

Pin Name I/O Description No. of Pins

VREG2 OOutput pins of LCD voltage and amp source power supplies. 1

A capacitor is required for stabilization.

OCA

OCB

OCC O A voltage capacitor pin. A capacitor is required for amplification. 5

OCD

OCE

Pin Name I/O Description No. of Pins

XLE1 OAn Nch open drain output terminal to drive the LED. 2

XLE2 Connects to the LED cathode.

EPSON 3–7

SED1225 Series

SED1225

Series

System Bus Connector Pins

Pin Name I/O Descrition No. of Pins

An 8-bit input data bus to be connected to the standard 8- or 16-bit MPU data bus.

Pins D7 and D6 function as the serial data and clock inputs respectively if PS is

logical low.

D7(SI)

D6(SCL) I 8

D5 to D0

Open : May be open. However, the potential is recommended to fix to have

better noise-resistance characteristics.

- : May be high or low. However, the potential must be fixed.

Usually, the most significant bit of MPU address bus is connected to identify data

A0 I or command. 1

0: Indicates D0 to D7 are command.

1: Indicates D0 to D7 are display data.

RES I Initializes when RES is set to low. The system is reset at RES signal level. 1

XCS I A Chip Select signal. The address bus signal is decoded and entered. 1

This is valid when low.

- When an 80-series MPU is connected

Active low.

The WR signal of 80-series MPU is connected. The data bus signal is fetched

XWR Iat the rising edge of XWR signal. 1

- When a 68-series MPU is connected

Active high.

Used as an Enable Clock input of 68-series MPU. The data bus signal is

fetched at the falling edge of XWR signal.

A switching pin between serial data input and parallel data input.

PS I 1

An interface data length select pin during parallel data input.

IF I - 8-bit parallel input if IF=high 1

- 4-bit parallel input if IF=low

This pin is connected to VDD or VSS if PS=low.

An MPU interface switch pin.

C86 I - 68-series MPU interface if C86=high 1

- 80-series MPU interface if C86=low

This pin is connected to VDD or VSS if PS=low.

An external clock input pin.

XCK I It must be fixed to high to use the internal oscillator. 1

To use an external clock input, turn the internal oscillator OFF by issuing the

command.

P/S Chip select Data/Command Data Serial Clock

"H" XCS A0 D0 to D7 —

"L" XCS A0 SI SCL

PS C86 IF D7 D6 D5 D4

D3 to D0

XCS A0 XWR

"L" — — SI SCL OPEN OPEN OPEN XCS A0 —

"H" "H" "H" D7 D6 D5 D4 D3-D0 XCS A0 E

"H" "H" "L" D7 D6 D5 D4 OPEN XCS A0 E

"H" "L" "H" D7 D6 D5 D4 D3-D0 XCS A0 XWR

"H" "L" "L" D7 D6 D5 D4 OPEN XCS A0 XWR

3–8 EPSON

SED1225 Series

LCD Driver Signals

Dynamic drive pins

Note: As the same COMS1 signal is output at two pins, one of them must be used.

Static drive pins

Notes: We recommend to separate LCD panel electrodes of static drive pins from those of dynamic drive pins. If

these patterns are closely located, the LCD and its electrodes may be deteriorated.

Pin I/O Description No. of

Name Pins

COM1 to O Common signal output pins (for character display) 24

COM24

COMS1, OCommon signal output pins (for non-character display) 3

COMS2 COMS1, COMS2: Common outputs for symbol display

SEG1 to O Segment signal output pins (for character display) 60

SEG60

SEGS1, 2 OSegment signal output pins (for non-character display) 4

4, 5 SEGS1, 2, 4, 5: Segment outputs for signal output

Pin I/O Description No. of

Name Pins

COMSA O Common signal output pin (for icon display) 1

SEGSA, B

C, D, E, F

O Segment signal output pin (for icon display) 10

G, H, I, J

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