Seiko Instruments G1216B1N000 user manual Contents

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1.GENERAL

1.1	General	1
1.2	Features	1
1.3	Absolute Maximum Ratings (excluding LED backlight)	2
1.4	Mechanical Characteristics	2
1.5	Electrical Characteristics (excluding LED backlight)	2
1.6	Optical Characteristics	3
1.7	LC Panel Life Time	4
1.8	LED Backlight Characteristics	4
1.9	Dimensions	6

2.CIRCUIT CONFIGURATION

3.OPERATING INSTRUCTIONS

3.1	Terminal Functions	14
3.2	Timing Characteristics	15
3.3	Reset Function	16
3.4	Instructions	17
3.5	Contrast Adjustment and Power Supply Example	21
3.6	LED Backlight Driver Example	21
3.7	MPU Connection Diagram	23
4. PRECAUTIONS		24
INDEX

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Contents AN.No.G1216B1N000-3D0E USER’S ManualCopyright 1993 by Seiko Instruments Inc Contents General Voltage +80 Temperature StorageSymbol Conditions Min Typ Max Unit Input High Power supply voltage25 C Vopr=13.0 Min Typ Max Unit Remark25 C Vopr=13.0 Viewing angle ∅ = 25 C Vopr=13.0 Contrast−20 To +70 Storage temp. range AN.No.G1216B1N000-3D0E Definition of response timeLedc LedaNumber of LED Chips=20DB3 DB0DB1 DB2Circuit Configuration CS2 CS1V c, V d, V f FRM CS R/WLSB MSBBusy Page COM4 COM1COM2 COM3Operational Amplifier Bias R2= 9 4 R1= 5 R1 Operating Instructions MPUCS1 CS2 Test point RL = 2.4 k = 11 k 450140 To DB7Rise time 200 Reset timeFunction Detailed explanation Display ON/OFF CodeD/I Display start line =2 Display start line=3 AN.No.G1216B1N000-3D0E Display start line CodeDB7 DB0 Display start line=0 Display start line=1AN.No.G1216B1N000-3D0E Address page set Code Display Data RAM Address ConfigurationReset Variable resistor Voltage V opr 13.5 13.0 12.5 11.5 10.5=10 k Ω =1.2 k ΩLeda Ledc =Input voltage power voltageV=LED forward voltage =Allowable LED forward current aIorq RST CS1 MPU Connection DiagramZ80 PIO D0 to D7 A0 to A7 DB0 to DB7 A0 to A15 DecoderPrecautions 11, 12, 17 9, 11, 12, 17, 18, 19LC drive voltage 10, 16, 17Seiko Instruments Inc

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