Seiko Instruments G1216B1N000-3D0E user manual General

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AN.No.G1216B1N000-3D0E

1.GENERAL

1.1General

The G1216 is a very thin LCD module on which a full-dot matrix LCD panel and a CMOS IC driver are integrated. The LCD panel used here features wide viewing angle and high contrast. This full dot configuration allows a wide variety of patterns to be displayed depending upon the input data. The display position is the intersection point of the matrix transparent electrodes. This prevents display distortion and displacement. Incorporating a display RAM and a display timing signal generator into the G1216 allows for direct connection with the MPU circuit without using an LCD controller.

1.2Features

128￿64 full dot matrix configuration

1/64 duty, 1/9 bias

Two 4096-bit internal display data RAMs

An internal display timing signal generator

￿8-bit parallel interface

Instructions:

Display Data Read/Write, Display ON/OFF, Display Start Line, X-Address (Page) Set, Y- Address Set, and Status Read.

Three types of power supply: VDD=+5 V, VLC , LEDA (LED anode)

￿Transflective, gray mode

Positive display

Display data “H”: Display ON: blue display color

Display data “L”: Display OFF: gray background

￿A wide operating temperature range

A built-in LED backlight (color: yellow-green)

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Contents USER’S Manual AN.No.G1216B1N000-3D0ECopyright 1993 by Seiko Instruments Inc Contents General +80 Temperature Storage Symbol Conditions Min Typ Max Unit Input HighPower supply voltage VoltageMin Typ Max Unit Remark 25 C Vopr=13.0 Viewing angle∅ = 25 C Vopr=13.0 Contrast 25 C Vopr=13.0AN.No.G1216B1N000-3D0E Definition of response time −20 To +70 Storage temp. rangeLeda Number of LEDChips=20 LedcDB0 DB1DB2 DB3CS2 CS1 Circuit ConfigurationV c, V d, V f CS R/W FRMMSB LSBBusy Page COM1 COM2COM3 COM4Operational Amplifier Bias R2= 9 4 R1= 5 R1 MPU Operating InstructionsCS1 CS2 450 140To DB7 Test point RL = 2.4 k = 11 kReset time Rise time 200Detailed explanation Display ON/OFF Code FunctionD/I AN.No.G1216B1N000-3D0E Display start line Code DB7 DB0Display start line=0 Display start line=1 Display start line =2 Display start line=3Display Data RAM Address Configuration AN.No.G1216B1N000-3D0E Address page set CodeReset Voltage V opr 13.5 13.0 12.5 11.5 10.5 =10 k Ω=1.2 k Ω Variable resistor=Input voltage power voltageV =LED forward voltage=Allowable LED forward current a Leda LedcMPU Connection Diagram Z80 PIOD0 to D7 A0 to A7 DB0 to DB7 A0 to A15 Decoder Iorq RST CS1Precautions 9, 11, 12, 17, 18, 19 11, 12, 1710, 16, 17 LC drive voltageSeiko Instruments Inc