Cs R/W, Frm | Seiko Instruments G1216B1N000 instruction

AN.No.G1216B1N000-3D0E

2.2.1Block Diagram (Segment Driver)

CS R/W	D/I	E DB0 to DB7
RST VDD VSS VLC

Figure 3 Segment Driver

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Image 11

Contents

AN.No.G1216B1N000-3D0E USER’S Manual Copyright 1993 by Seiko Instruments Inc Contents General Voltage +80 Temperature StorageSymbol Conditions Min Typ Max Unit Input High Power supply voltage 25 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 time Ledc LedaNumber of LED Chips=20 DB3 DB0DB1 DB2 V c, V d, V f Circuit ConfigurationCS2 CS1 FRM CS R/W LSB MSB Busy Page COM4 COM1COM2 COM3 Operational Amplifier Bias R2= 9 4 R1= 5 R1 CS1 CS2 Operating InstructionsMPU Test point RL = 2.4 k = 11 k 450140 To DB7 Rise time 200 Reset time D/I FunctionDetailed explanation Display ON/OFF Code Display start line =2 Display start line=3 AN.No.G1216B1N000-3D0E Display start line CodeDB7 DB0 Display start line=0 Display start line=1 AN.No.G1216B1N000-3D0E Address page set Code Display Data RAM Address Configuration Reset Variable resistor Voltage V opr 13.5 13.0 12.5 11.5 10.5=10 k Ω =1.2 k Ω Leda Ledc =Input voltage power voltageV=LED forward voltage =Allowable LED forward current a Iorq RST CS1 MPU Connection DiagramZ80 PIO D0 to D7 A0 to A7 DB0 to DB7 A0 to A15 Decoder Precautions 11, 12, 17 9, 11, 12, 17, 18, 19 LC drive voltage 10, 16, 17 Seiko Instruments Inc