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PDF PT6313-S Data sheet ( Hoja de datos )
| Número de pieza | PT6313-S | |
| Descripción | VFD Driver/Controller IC | |
| Fabricantes | PTC | |
| Logotipo |  |
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VFD Driver/Controller IC
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT6313-S
DESCRIPTION
PT6313-S is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/4 to 1/8 duty factor. Eight
wwswe.dgatmasheenett4uo.cuotmput lines, 4 grid output lines, 4 segment/grid output drive lines, one display memory,
control circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral
device for a single chip micro computer. Serial data is fed to PT6313-S via a three-line serial interface.
It is housed in a 28pins, SOP.
FEATURES
• CMOS Technology
• Low Power Consumption
• Key Scanning (8 x 2 matrix)
• Multiple Display Modes: (8 Segments, 8 Digits to 12 Segments, 4 Digits)
• 8-Step Dimming Circuitry
• Serial Interface for Clock, Data Input, Data Output, Strobe Pins
• No External Resistors Needed for Driver Outputs
• Available in 28pins, SOP
APPLICATION
• Microcomputer Peripheral Devices
PT6313-S V1.2
-1-
September, 2005
1 page  
VFD Driver/Controller IC
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT6313-S
FUNCTION DESCRIPTION
COMMANDS
wwCw.doamtasmheaetn4ud.csomdetermine the display mode and status of PT6313-S. A command is the first byte (b0 to b7)
inputted to PT6313-S via the DIN Pin after STB Pin has changed from “HIGH” to “LOW” State. If for
some reason the STB Pin is set to “HIGH” while data or commands are being transmitted, the serial
communication is initialized, and the data/commands being transmitted are considered invalid.
COMMAND 1: DISPLAY MODE SETTING COMMANDS
PT6313-S provides 4 display mode settings as shown in the diagram below: As stated earlier a
command is the first one byte (b0 to b7) transmitted to PT6313-S via the DIN Pin when STB is “LOW”.
However, for these commands, the bits 4 to 6 (b3 to b5) are ignored, bits 7 & 8 (b6 to b7) are given a
value of “0”.
The Display Mode Setting Commands determine the number of segments and grids to be used (1/4 to
1/8 duty, 12 to 8 segments).
When Power is turned “ON”, the 8-digit, 8-segment mode is selected.
MSB
LSB
0 0 - - - b2 b1 b0
Not Relevant
Display Mode Settings:
000: 4 digits, 12 segments
001: 5 digits, 11 segments
010: 6 digits, 10 segments
011: 7 digits, 9 segments
100: 8 digits, 8 segments
PT6313-S V1.2
-5-
September, 2005
5 Page 
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
VFD Driver/Controller IC
PT6313-S
SERIAL COMMUNICATION FORMAT
The following diagram shows the PT6313-S serial communication format. The DOUT Pin is an
wwNw.d-cathasahneent4eul.,coompen-drain output pin; therefore, it is highly recommended that an external pull-up resistor
(1KΩ to 10KΩ) must be connected to DOUT.
Reception (Data/Command Write)
If data continues
STB
DIN b0 b1 b2
b6 b7
CLK
123
78
Transmission (Data Read)
STB
DIN
CLK
DOUT
b0 b1 b2 b3 b4 b5 b6 b7
1 2 3 4 5 6 7 8 t wait
1 234 56
b0 b1 b2 b3 b4 b5
Data Read Command is set
Data Reading Starts
where: twait (waiting time) > 1µs
It must be noted that when the data is read, the waiting time (twait) between the rising of the eighth
clock that has set the command and the falling of the first clock that has read the data is greater or
equal to 1µs.
PT6313-S V1.2
- 11 -
September, 2005
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet PT6313-S.PDF ] | |
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