VFD MODULE, 140X16

GU140X16G-7806A

Manufacturer Part NumberGU140X16G-7806A
DescriptionVFD MODULE, 140X16
ManufacturerNoritake Company Inc
GU140X16G-7806A datasheet
 

Specifications of GU140X16G-7806A

Resolution140 X 16Viewing Area (h X W)11.45mm X 69.85mm
Supply Current250mASupply Voltage Range4.75V To 5.25V
Operating Temperature Range-40°C To +85°CCharacter FormatDot Graphic
Character Type5x7Lead Free Status / RoHS StatusLead free / RoHS Compliant
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Dot Graphic VFD Module
4-Bit Data/Status Read Timing Diagram.
R/W
RS
>30ns
<250ns
E
>250ns
UPPER NIBBLE
D4-D7
Valid
ASYNCHRONOUS SERIAL COMMUNICATION
Asynchronous & synchronous serial interfaces are provided at TTL level. Synchronous is enabled with parallel, first received byte disables the
other. To enable Asynchronous Serial Mode connect pin 4 and 6 on CN3 (LINK1 and LINK2), Link J6 and enable i80 Mode on J2 and J4. When
using Asynchronous serial communications, the module is automatically initialized at power-up/reset with the cursor enabled.
TXD
RXD
RXD
TXD
HOST
GU140x16G-7806A
SYSTEM
DTR
HB
CTS
MB
GND
VDD
VDD GND
The host busy line (HB) stops the module from sending data
to the host. The use of the HB and MB lines are optional, and
can be connected together if not required.
SYNCHRONOUS SERIAL COMMUNICATION
With synchronous communications enabled, data can be clocked into the VFD module on the rising edge of SCK, with the MSB sent first. The host
must provide adequate delays for the module to process the data, these busy times are specified in the software command section. Alternatively
the host can monitor the MB (Module Busy) line.
SIN
I/O
I/O
SOUT
HOST
I/O
SCK
GU140x16G-7806A
SYSTEM
I/O
/SS
I/O
MB
GND
VDD
VDD GND
The /SS pin can be used as an enable pin if other devices are
connected to the serial line, and also allows byte synchronisation.
The use of the /SS line is recommended, but can be permanently
pulled low if not required.
SERIAL CONTROL
An additional command has been included to distinguish between command and data writes when using serial communications. This command
(0FH) will temporarily set the RS line low for the subsequent written byte. The following example displays two text messages using the serial
communications and the ‘Set RS’ command: -
CLEAR DISPLAY
SET CURSOR
0FH 01H
0FH 80H
0FH C0H
NORITAKE ITRON VFD MODULES
100ns
>50ns
>250ns
Host to Module Write
RXD
START
D0
MB
Module to Host Write
TXD
HB
>125ns
SCK
MOSI
MSB
MISO
MSB
MB
/SS
TTL Synchronous serial communication.
DISPLAY TEXT
‘NORITAKE ITRON’
‘VFD MODULES’
GU140x16G-7806A
>250ns
>50ns
LOWER NIBBLE
Valid
<20us
D1
D2
D3
D4
D5
D6
D7
STOP
START
D0
D1
D2
D3
D4
D5
<200us
>250ns
>250ns
<20us
LSB
LSB
>250ns
>250ns
Displaying text using serial communications.
GU140x16G-7806A
tBUSY
D6
D7
STOP
tBUSY