Seiko Instruments G1216B1N000 user manual DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7, CS1, CS2, Rst

Page 9

AN.No.G1216B1N000-3D0E

1.9 Dimensions

Unit: mm

General dimensional tolerance:±0.5

Figure 1 Dimensions

I/O terminal functions

No.

Sym.

Functions

 

 

 

1

VDD

Power supply voltage: +5.0 V

2

VSS

GND: 0 V

3

VLC

LC drive voltage

4

DB0

Data bus (LSB)

5

DB1

Data bus

6

DB2

Data bus

7

DB3

Data bus

8

DB4

Data bus

9

DB5

Data bus

10

DB6

Data bus

 

No.

Sym.

Functions

 

 

 

11

DB7

Data bus (MSB)

12

CS1

Chip select (1)

 

 

 

 

13

CS2

Chip select (2)

 

 

 

 

14

RST

Reset

 

 

 

 

15

R/W

Read/Write

 

 

 

 

16

D/I

Data/Instruction

 

 

 

17

E

Enable

 

 

 

18

FGND

Frame ground1

19

LEDA

LED anode

 

 

 

20

LEDC

LED cathode

 

 

 

 

1FGND is connected to the metallic frame of the module. Use this frame when grounding.

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Image 9
Contents AN.No.G1216B1N000-3D0E USER’S ManualCopyright 1993 by Seiko Instruments Inc Contents General Symbol Conditions Min Typ Max Unit Input High +80 Temperature StoragePower supply voltage Voltage25 C Vopr=13.0 Viewing angle Min Typ Max Unit Remark∅ = 25 C Vopr=13.0 Contrast 25 C Vopr=13.0−20 To +70 Storage temp. range AN.No.G1216B1N000-3D0E Definition of response timeNumber of LED LedaChips=20 LedcDB1 DB0DB2 DB3Circuit Configuration CS2 CS1V c, V d, V f FRM CS R/WLSB MSBBusy Page COM2 COM1COM3 COM4Operational Amplifier Bias R2= 9 4 R1= 5 R1 Operating Instructions MPUCS1 CS2 140 450To DB7 Test point RL = 2.4 k = 11 kRise time 200 Reset timeFunction Detailed explanation Display ON/OFF CodeD/I DB7 DB0 AN.No.G1216B1N000-3D0E Display start line CodeDisplay start line=0 Display start line=1 Display start line =2 Display start line=3AN.No.G1216B1N000-3D0E Address page set Code Display Data RAM Address ConfigurationReset =10 k Ω Voltage V opr 13.5 13.0 12.5 11.5 10.5=1.2 k Ω Variable resistor=LED forward voltage =Input voltage power voltageV=Allowable LED forward current a Leda LedcZ80 PIO MPU Connection DiagramD0 to D7 A0 to A7 DB0 to DB7 A0 to A15 Decoder Iorq RST CS1Precautions 11, 12, 17 9, 11, 12, 17, 18, 19LC drive voltage 10, 16, 17Seiko Instruments Inc