NORITAKE ITRON GU112x16G-7806AC technology data

Dot Graphic VFD Module GU112x16G-7806AC

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 112x16 Dot Graphic (2x16 characters)
 Single 5V Supply
 High Brightness Blue Green Display
 Operating Temp -40°C to +85°C
 3 Multi Sized Fonts
 5x7 & 10x14 Cyrillic Fonts
 4/8 Bit Parallel LCD & Serial Interfaces

Pin 1

CN1

Pin 1

The module includes the Vacuum Fluorescent Display glass, VF drivers
and micro-controller ICs with refresh RAM, character generator and
interface logic. The 4/8 bit parallel & serial bi-directional interfaces are
5V TTL/CMOS compatible. The command set is LCD compatible with
extended graphic functions.

CN2 – SERIAL INTERFACE

CN2

Pin Async SPI

1 5V 5V
2 NC SCK
3 RXD /SS
4 LINK1 SIN
5 0V 0V
6 LINK2 SOUT
7 TXD NC
8 /RES /RES
9 MB MB
10 HB HB

NC = Do Not Connect

11.45

10.375

31.0

Dimensions in mm &

subject to tolerances.

36.0

Mounting holes

3.2mm dia.

CN1 - PARALLEL INTERFACE

11.5

52.5

75.0

80.0

78.0

2.5

1.6

2.5

8.7 max

Pin Sig Pin Sig

1 GND 2 VCC
3 NC* 4 RS
5 R/W 6 E
7 D0 8 D1

9 D2 10 D3
11 D4 12 D5
13 D6 14 D7

Pin 3 can be changed to /RESET or
BUSY terminal and selectable by
jumper J3 (2-3) or J3 (1-2)

ELECTRICAL SPECIFICATION

Parameter Symbol Value Condition

Power Supply Voltage VCC 5.0VDC +/- 5% GND=0V
Power Supply Current ICC 250mADC typ. VCC=5V
Logic High Input VIH 0.8VDC min. Vcc max. VCC=5V
Logic Low Input VIL 0VDC min 0.6VDC max. VCC=5V
Logic High Output VOH 3.5VDC min. Vcc max. IOH=-10uA
Logic Low Output VOL 0VDC min 0.6VDC max. IOL =4mA

OPTICAL and ENVIRONMENTAL SPECIFICATIONS

Parameter Value
Display Area (XxY mm) 52.5 x 11.45
Dot Size/Pitch (XxY mm) 0.33 x 0.575 / 0.47 x 0.725
Luminance 700 cd/m2 Typ.
Colour of Illumination Blue-Green (Filter for colours)
Operating Temperature
Storage Temperature
Operating Humidity (non condensing)

SOFTWARE COMMAND SUMMARY

Instruction R/W RS D0-D7

Clear Display L L 01H
Cursor Return Home L L 02H
Entry Mode Set L L 04H-07H
Display ON/OFF L L 08H-0FH

-40°C to +85°C

-40°C to +85°C
20 to 80% RH @ 25°C

2.0 max

CHARACTER SET

5x7 & 10x14 Font LCD Font

UDF1

UDF2

UDF3

UDF4

UDF5

UDF6

UDF7

UDF8

UDF1

UDF2

UDF3

UDF4

UDF5

UDF6

UDF7

UDF8

NOTE: UDF characters are available using 5x 7 font only.

Proportional Mini Font

Cyrillic Font

Cursor Shift Left L L 10H
Cursor Shift Right L L 14H
Display Shift Left L L 18H
Display Shift Right L L 1CH
Select 4/8 bit interface L L 20H (4Bit) / 30H (8Bit) + luminance
Display Luminance L H 00H-03H (must follow above command)
Set CG RAM Addr. L L 40H-7FH
Set DD RAM Addr. L L 80H-E7H
Read BUSY/Addr. H L 00H-FFH D7 Busy = High
Read Data from RAM H H 00H-FFH
Set Graphic Cursor L L F0H + xpos + ypos
Set Area Commands

L L
L H
L H
L H
L H
L H

F1H + x1 + y1 + x2 + y2 + cmd
where cmd 49H = Invert Area
46H = Fill Area
43H = Clear Area
4FH = Set Outline Bo
6FH = Clear Outline Box

Write Graphic Image L H F1H + x1 + y1 + x2 + y2 + cmd + data
Set Font / Spacing L L F2H + font style
Set RS Low 0FH Serial Comms. only
Read Data FEH Serial Comms. only
Read Cursor Position FFH Serial Comms. only

Async. Serial Mode

J5

Configuration

1-2 3-4 7-8

O O O 9600, N, 8, 1

L O O 19200, N, 8, 1
O L O 38400, N, 8, 1
X X L Self Test Mode

Serial / Parallel Selection

J6 Interface

Open Sync Serial / Parallel (default)

Link Asynchronous Serial

Parallel Interface Type (M68 / i80)

J2 J4 Mode Signals

1-2 1-2 i80 Pin 5 = /WR, Pin 6 = /RD
2-3 2-3 M68 Pin 5 = R/W, Pin 6 = E

Copyright 2007 Noritake Itron Corp. Japan

CN1 Pin 3 Function

J3 Function

2 & 3 / Reset

1 & 2 Busy
All J5 links & J6 should be open for
Parallel operation

CONTACT

Noritake Sales Office Tel Nos

Nagoya Japan: [phone]

Canada: [phone]

Chicago USA: [phone]

Munchen (D): [phone]

Itron UK: [phone]

Rest Europe: [phone]

www.noritake-itron.com

Subject to change without notice.

IUK Doc Ref: 10438 Iss:2 16Aug07

NORITAKE ITRON VFD MODULES GU112x16G-7806AC

Dot Graphic VFD Module GU112x16G-7806AC

SOFTWARE COMMANDS

Instruction / Busy time Data Format (RS = 1) Description

UDF Write 00H – 0FH Write user defined character 1-8 to the current cursor location on the display.
Data Write

(40us – LCD compatible mode)
(250us – Graphic mode)

00H – FFH Write data to the display. In normal (LCD compatible) mode of operation, data is written to the display data

(DD RAM) or character generator (CG RAM).
When using the graphical data commands (F0H, F1H & F2H), data is written direct to the display and is not
stored in DD RAM. Data write busy times will increase when using the graphic functions.

Data Read

(40us – LCD compatible mode)

00H – FFH Read data from the display. In normal (LCD compatible) mode of operation, data is read from the display

data (DD RAM) or character generator (CG RAM)

Instruction / Busy time Data Format (RS = 0) Description

Status / Cursor Position
Read

(40us – LCD compatible mode)

Display Clear

(150µs)

00H - FFH D0 – D6 of read corresponds to the current cursor position. D7 shows the status of busy.

01H Fills all locations in the display data (DD) RAM with 20H (blank character). The address counter is set to 0 in

the DD RAM. The address counter is set to increment on each data read/write. Any display offset (using the
display shift command) is removed.

Cursor Home

(500µs)

Entry Mode

(40µs)

02H The address counter is set to 0 in the DD RAM. Any display offset (using the display shift command) is

removed.

04H – 07H Bit 1 is used to select the direction of the address counter on each data read or write. If set to ‘1’, the address

counter is incremented. If set to ‘0’, the address counter is decremented.
Bit 0 enables the display to shift on each data read/write. If this bit is set to ‘1’, the display is shifted with the
cursor. The display shift direction depends upon the address counter direction (bit1). If this is set to
increment, the display is shifted left, if the address counter is set to decrement, the display is shifted right.
Note: When display shift is enabled, the data write busy time can increase by 150us.

Display Control

(50us)

08H-0FH Bit 2 is used to enable or disable the display. If this bit is set to ‘0’ the VFD’s power supply is turned off to

reduce power consumption.
Bit 0 enables the flashing block cursor. Note: If the cursor is enabled, busy times can increase by 20us.

Cursor Shift Left

(40us)

Cursor Shift Right

(40us)

Display Shift Left

(150us)

Display Shift Right

(150us)

Select 4 bit interface

(40µs)

10H Shift the cursor position (address counter) one position to the left.

14H Shift the cursor position (address counter) one position to the right.

18H Shift the display left, one character position.

1CH Shift the display right, one character position.

20H + lum (RS=1) Enables 4-bit communications. Data is received on DB4-DB7 only. Two writes are required to send one data

byte. The most significant nibble should be sent first. Refer to the ‘Parallel Communications’ section for more
information. The lum value sets the displays brightness, and must be sent with the RS line high: ­00H = full brightness, 01H = 75%, 02H = 50% & 03H = 25%.

Select 8 bit interface

(40µs)

Set CG Address

(40us)

Set DD Address

(40us)

Set Graphic Cursor

(40us)

*Note

Set Area

(40us + 500us[cmd byte])

30H + lum (RS=1) Enables 8-bit communications. Data is received on DB0-DB7. The lum value sets the displays brightness,

and must be sent with the RS line high: - 00H = full brightness, 01H = 75%, 02H = 50% & 03H = 25%.

40H – 7FH Set the character generator address (CG RAM). All written data is placed within the user definable character

area.

80H – E7H Set the display data address (DD RAM). 80H - 8FH = top line. C0H - CFH = bottom line.

*Note

F0H + xpos + ypos Set the absolute cursor position. xpos = 0 – 111, ypos = 0 – 15.

Co-ordinates should be written with RS line set high.

F1H + x1 + y1 + x2 + y2 + cmd Area Commands: - ‘I’ - invert area, ‘F’ – fill area, ‘C’ = clear area, ‘O’ – set outline, ‘o’ – clear outline.

All area commands should be preceded with the area co-ordinates. X1 Y1 left top X2 Y2 bottom right.
Co-ordinates, command and graphical data should be written with RS line set high.

Write Graphic Image F1H + x1 + y1 + x2 + y2 + cmd Image Commands: - ‘H’ – write horizontal graphical data with horizontal cursor movement.

‘V’ – write vertical graphical data with horizontal cursor movement.
‘h’ – write horizontal graphical data with vertical cursor movement.
‘v’ – write vertical graphical data with vertical cursor movement.
Graphical data should immediately follow the ‘H’,’h’,’V’ and ‘v’ commands.

Set Font

(40us)

*Note

F2H + font Select font type, font size and font spacing.

Co-ordinates, command and graphical data should be written with RS line set high.

Font commands: - ‘A’ or ‘a’ = proportional 64 character mini-font.
‘B’ = 5x7 LCD compatible font with Katakana characters.
‘C’ = 10x14 LCD compatible font with Katakana characters.
‘b’ = 5x7 Cyrillic font with European characters.
‘c’ = 10x14 Cyrillic font with European characters.
‘1’ = set the inter-character pixel spacing to 1 pixel.
‘2’ = set the inter-character pixel spacing to 2 pixels.

Font command should be written with RS line set high.
Port Configure F4H + byte Bit 7 High = I/O Port, Low = Serial Port. See extended port and serial commands.
Read Port Status F5H The current port status is read with RS high. See extended port and serial commands.
Port Out / Serial Send F6H + byte byte is output from the port. In serial mode check the busy status before sending again.
Port In / Serial Read F7H The current port levels or buffered received data can be read with RS high.
Port Buffer Send F8H + size + data Up to 128 bytes of data can be buffered before being transmitted from the serial port.

Instruction / Busy time Data Format Additional Serial Data Commands

Set RS Low 0FH Set the RS line low for the following byte only. Used in serial communications only.
Read Data FEH Read data at current cursor position. This command is used with serial communications only.
Read Cursor Position FFH Read current cursor position. This command is used with serial communications only.

Note: After these commands are executed, the cursor will be disabled and any character data will be written to the display only, and not the DD RAM. Any subsequent LCD compatible command will
re-enable the cursor and allow for DD RAM writing.

NORITAKE ITRON VFD MODULES GU112x16G-7806AC

Dot Graphic VFD Module GU112x16G-7806AC

GRAPHICAL DATA WRITES

X1, Y1

DATA

DIRECTION

Vertical Data & Horizontal

Movement

MSB

X1, Y1

MSB

DATA

DIRECTION

Vertical Data & Vertical

Movement

PARALLEL COMMUNICATIONS

This module has a fast latching 8-bit data bus. The ‘RS’ and ‘R/W’
control lines should be set prior to the rising edge of the ‘E’ enable line.
Data is clocked in on the falling edge of the enable line. The busy line
should be checked before sending data.

HOST
SYSTEM

I/O

I/O
I/O
I/O
I/O

D0-7

GU112x16G-7806AC

E
RS
R/W
BUSY

The busy state can be monitored on D7 when reading the DDRAM
address (RS line low). The busy state can also be monitored directly
from CON1 pin 3 if link J3 is set to 1&2.

VDD GND VDD GND

X1, Y1

MSB

Horizontal Data & Horizontal

DATA

DIRECTION

Movement

8-Bit Data Write Timing Diagram.

R/W

RS

>30ns

E

D0-D7

BUSY

>25ns

8-Bit Data Read Timing Diagram.

R/W

>30ns

>20ns

X1, Y1

DIRECTION

MSB

Horizontal Data & Vertical

Movement

>100ns

<120ns

tBUSY

DATA

HOST
SYSTEM

I/O

I/O
I/O
I/O
I/O

D4-7

GU112x16G-7806AC

E
RS
R/W
BUSY

VDD GND VDD GND

4-Bit Data/Command Write Timing Diagram.

R/W

RS

>30ns

E

D4-D7

BUSY

>25ns

>20ns

>100ns

UPPER NIBBLE

RS

>250ns

E

<250ns >50ns

D0-D7

The data bus width can be selected for 4-bit operation, using data lines
D4-D7. Within this mode, two writes are required to send one data byte.

VALID

The high nibble (bits 4-7) should be sent first, followed by the low nibble
(bits 0-3). The busy state is not triggered between nibbles. It is
important that the status is NOT read within 40us of sending the
command to set either 4 or 8 bit mode.

>100ns

>25ns

>20ns

<120ns

>100ns

LOWER NIBBLE

tBUSY

NORITAKE ITRON VFD MODULES GU112x16G-7806AC